Entries |
Document | Title | Date |
20080253585 | APPARATUS AND METHOD FOR CONTROLLING VOLUME - A zero-crossing detector detects a zero-crossing point by monitoring an amplitude of an audio signal, and generates a zero-crossing detection signal that becomes a predetermined level for every detected zero-crossing point. A timer circuit counts a clock signal, and generates a timing signal that becomes a predetermined level every time a predetermined unit transition time elapses. A volume setting unit receives the zero-crossing detection signal and the timing signal, and transits the volume from a current value to a target value in a step-wise manner. Every time the timing signal becomes the predetermined level, the volume setting unit changes the volume by a predetermined width at a transition timing at which the zero-crossing detection signal becomes a predetermined level immediately thereafter, and repeats such process to execute volume transition from the current value to the target value. | 10-16-2008 |
20080253586 | SYSTEMS AND METHODS FOR CONTROLLING AUDIO LOUDNESS - Embodiments of a system and method of controlling the loudness of an audio signal are disclosed. The method includes determining a long term loudness level for the audio signal over a first sliding time period, determining a short term loudness level for the audio signal over a second sliding time period where the second sliding time period is shorter than the first sliding time period, detecting a segment transition in the audio signal; and generating a gain control signal. The gain control signal is based on the short term loudness level for a first time interval after a segment transition and the gain control signal is based on the long term loudness level after the expiration of the first time interval. Other embodiments include addition signal analysis steps to identify different segments of a signal and to control the loudness of the segments. | 10-16-2008 |
20080253587 | METHOD FOR AUTOMATICALLY ADJUSTING AUDIO VOLUME AND AUDIO PLAYER - A method is for automatically adjusting audio volume in a decoder that decodes digital audio data for each frame in which gain information that describes the audio volume of the frame is included. The method includes: storing a first gain information that is included in a preceding frame and used for decoding the preceding frame in a memory device; obtaining a second gain information that is included in a current frame; calculating a difference between the first gain information and the second gain information; adjusting the second gain information in accordance with the calculated difference; and decoding the current frame using the adjusted second gain information. | 10-16-2008 |
20080273719 | Method and apparatus for controlling audio volume when switching electronic product channels - Method and apparatus for controlling audio volume when switching electronic product channels is characterized by saving predetermined volume of each channel in a memory and outputting the responsive volume via a speaker, wherein the electronic product can output an audio volume in response to each channel as user preferable volume. | 11-06-2008 |
20090016547 | Sound volume controller - A sound volume controller includes a level adjustment section that adjusts a level of an input audio signal and outputs the adjusted input audio signal as an output audio signal, a level detection section that detects the level of the input audio signal, a volume value detection section that detects a volume value set by a user, a coefficient table storage section that stores a coefficient table which describes a relation between levels of the output audio signal and levels of the input audio signal, a coefficient table change section that changes the coefficient table stored in the coefficient table storage section in accordance with the volume value detected by the volume value detection section, and a setting section that sets an amount of level adjustment of the level adjustment section in accordance with the level of the input audio signal detected by the level detection section and the coefficient table. | 01-15-2009 |
20090046873 | METHODS AND SYSTEMS FOR DETERMINING AUDIO LOUDNESS LEVELS IN PROGRAMMING - An example of a method of correcting an audio level of a stored program asset comprises retrieving a stored program asset having audio encoded at a first loudness setting. Dialog of the audio of the asset is identified, a loudness of the dialog is determined and the determined loudness is compared to the first loudness setting. The asset is re-encoded at a second loudness setting corresponding to the determined loudness, if the first loudness setting and the second loudness are different by more than a predetermined amount. The determined loudness is preferably a DIALNORM of the dialog. The asset may be stored with the re-encoded loudness setting. The method may be applied to programs as they are being received from a source, as well. Aspects of the method may also be applied to programs to be provided by a source. Systems are also disclosed. | 02-19-2009 |
20090060226 | AUDIO CIRCUIT FOR DISPLAY - An audio circuit arranged in a display includes an audio input connector configured to connect to an audio output connector of a computer to receive audio signals therefrom, an audio input circuit receiving the audio signals, an audio amplifier circuit connected to the audio input circuit to amplify the audio signals, an audio output circuit outputting the amplified audio signals, a first output connector connected to the audio output circuit, a volume adjusting circuit, a micro control unit (MCU) of a motherboard of the display connected to the volume adjusting circuit, and a speaker connected to the first output connector. The volume adjusting circuit receives a control signal from the MCU to control the volume adjusting circuit to adjust the audio signals, and the speaker receives the adjusted audio signals. | 03-05-2009 |
20090067645 | ELECTRONIC VOLUME DEVICE - Amplifiers amplify input first audio signals according to volume values set beforehand. Via output terminals, the amplifiers output second audio signals to externally connected power amplifiers. A comparison unit compares the second audio signals with a reference signal. Via the detection terminals, detection signals are output externally according to the comparison results obtained by the comparison unit. | 03-12-2009 |
20090074209 | Audio Processing for Compressed Digital Television - A system for controlling volume comprising a perceptual loudness estimation unit for determining a perceived loudness of each of a plurality of frequency bands of a signal. A gain control unit for receiving the perceived loudness of one of the frequency bands of the signal and for adjusting a gain of the frequency band of the signal as a function of the perceived loudness of the frequency band. | 03-19-2009 |
20090086997 | SYSTEM AND METHOD FOR INCREASING RING TONE VOLUME - A method for increasing ring tone volume is provided. The method includes steps of: reading an audio file which is set as a current ring tone; determining whether the ring tone is a MP3 audio file or a musical instrument digital interface (MIDI) audio file; adjusting frequencies by using an equalizer technique to increase volume of the ring tone if the ring tone is the MP3 audio file; adjusting a volume level of the ring tone to be the highest volume level, and adjusting timbre of the ring tone to increase the ring tone volume by simulating a musical score of the ring tone by using different instruments if the ring tone is the MIDI audio file. A related system is also provided. | 04-02-2009 |
20090092265 | AUDIO DOSAGE CONTROL - A method for controlling consumer exposure to audio dosage for a composite audio signal, the method comprising: sampling the composite audio signal; transforming the sampled audio signal, using a fast fourier transform algorithm, to produce a signal representative of the amplitude of component frequencies of the audio signal; comparing the transformed audio, signal with a predefined impulse control threshold profile, representing the target maximum amplitude for each frequency component for the audio signal threshold profile to produce a configuring signal representative of the difference between the broadcast signal and the profile; using the configuring signal to automatically configure in real time a Finite Impulse Response (FIR) filter so that it attenuates the amplitude of the transformed audio signal in frequency bands centred on the frequencies at which the target threshold is exceeded; and outputting the attenuated audio signal for consumer exposure. | 04-09-2009 |
20090097675 | SOUND PROVIDING SYSTEM - A performance sound supplying system includes a plurality of performer amplifiers that are disposed adjacent to performers of musical instruments positioned at different locations on a stage and reproduces supplied performance sound signals as sounds. Plural performance sound signals provided by the guitar, the keyboard, the base and the drum set performed by the performers are supplied to the mixer. A mixer is provided to render a sound volume balance adjustment on each of the supplied performance sound signals based on operations of an operator located on the audience seat side, and supplies the performance sound signals to the performer amplifiers corresponding to the performance sound signals. The mixer also supplies, based on operations by the operator, at least one of the performance sound signals to a non-corresponding performer amplifier among the performer amplifiers. | 04-16-2009 |
20090097676 | Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal - Audio signal processing relating to the measurement and control of the perceived sound loudness and/or the perceived spectral balance of an audio signal is useful, for example, in one or more of: loudness-compensating volume control, automatic gain control, dynamic range control (including, for example, limiters, compressors, expanders, etc.), dynamic equalization, and compensating for background noise interference in an audio playback environment. In various embodiments, modification parameters are derived for modifying the audio signal in order to reduce the difference between its specific loudness and a target specific loudness. | 04-16-2009 |
20090103752 | DEVICE AND METHOD FOR AUTOMATICALLY ADJUSTING GAIN - A device and method are provided for automatically adjusting gain, including a conversion module for converting an audio time-domain signal to an audio frequency-domain signal, an analysis module for analyzing the audio frequency-domain signal in accordance with an equal-loudness level contour of human hearing so as to generate strength weightings and generating a signal strength in accordance with the weightings, a calculation module for calculating a gain by analysis of the audio frequency-domain signal when the signal strength falls outside a default range, and a control module for generating an audio output signal in accordance with the gain and the audio time-domain signal. | 04-23-2009 |
20090116666 | ADJUSTING ACOUSTIC SPEAKER OUTPUT BASED ON AN ESTIMATED DEGREE OF SEAL OF AN EAR ABOUT A SPEAKER PORT - A degree of seal of an ear about a speaker port may be estimated by detecting touch contact between the ear and at least one touch sensor in fixed relation to the speaker port. The degree of seal is estimated based on the detected touch contact. Based upon the estimated degree of seal, the acoustic output of the speaker may be adjusted. The adjustment may compensate for perceived changes to the quality of the acoustic output resulting from the degree of seal. The at least one touch sensor may be a plurality of touch sensors spaced around the speaker port. Each sensor may have a truncated wedge shape, with a narrow end closest to the speaker port. Upon receipt of user input indicative of a high degree of ear seal, a sample of the sensor(s) may be taken and stored for using during future estimation of the degree of seal. | 05-07-2009 |
20090116667 | Method and Apparatus for Volume Adjustment - A method and an apparatus for adjusting volume are provided. A determining module receives a sound input signal, wherein the sound input signal is connected to a plurality of sound input sources and corresponds to one of the said sound input sources, the determining module further determines the corresponding sound input source of the sound input signal is different; a storing module stores a plurality of sound output records; a first calculating module calculates a sound output signal according to the sound input signal and the sound output records. | 05-07-2009 |
20090136061 | AUDIO LEVEL COMPRESSOR - An audio level compressor for compressing the dynamic range of an input audio signal. The audio level compressor can be part of a microphone, or a separate component. The audio level compressor includes input terminals for receiving the input audio signal, a lamp having a filament resistance that is a function of the input audio signal; a load resistance; a signal gain controller that includes a means for increasing dynamic range compression of the input audio signal, and output terminals for providing an output audio signal that is a function of the input audio signal and the signal gain. The signal gain controller provides a signal gain that is a function of the filament resistance and the load resistance. The audio level compressor can also include an expander circuit or a power conditioning circuit. Power can be provided by an internal source or a phantom power supply. | 05-28-2009 |
20090147970 | MOBILE TERMINAL AND SOUND INPUT/OUTPUT CONTROL METHOD FOR MOBILE TERMINAL - According to one aspect of the invention, a mobile terminal includes: a case having two flat faces opposite to each other and side faces having a first side face and a second side face opposed to each other; a first sound input/output unit provided on the first side faces; and a second sound input/output unit provided on the second side face. | 06-11-2009 |
20090161888 | AUTO GAIN CONTROL AMPLIFIER, AUTO GAIN CONTROL SYSTEM AND AUTO GAIN CONTROL METHOD - An auto gain control amplifier that amplifies an input signal including a variable gain amplification unit that amplifies an input signal and an auto gain control unit that monitors amplitude of an output signal of the variable gain amplification unit, obtains an gain of the variable gain amplification unit that causes the amplitude of the output signal to fall within a desired range according to the amplitude of the output signal, and supplies the gain obtained to the variable gain amplification unit. The auto gain control unit sets the gain in the variable gain amplification unit when the amplitude of the output signal is equal to or below a predetermined reference value. | 06-25-2009 |
20090161889 | DYNAMIC RANGE CONTROLLER - A circuit for preventing clipping in an Automatic Level Control (ALC) or Limiter, where the amplitude of the signal above the clipping point is estimated, then the signal level is automatically reduced over a defined period substantially equal to the feedforward delay in the ALC/Limiter. By adaptively controlling, based on the excess amplitude and the delay time available, an attack rate used in the ALC/Limiter to reduce the gain applied to an input signal, it can be ensured that the output amplitude is brought within the clipping level sufficiently quickly to prevent audible clipping. | 06-25-2009 |
20090175468 | METHODS FOR PREVENTING UNWANTED SOUND CAUSED BY GAIN CHANGES - An electronic device capable of preventing unwanted sound caused by gain changes are provided. An amplifier thereof amplifies an input signal and generates a amplified signal. An analog-to-digital converter (ADC) thereof converts the amplified signal to a digital signal. An automatic gain controller (AGC) thereof updates a gain of the amplifier according to a strength of the amplified signal or amplified digital signal. A smoothing unit thereof updates a gain of the digital signal from the ADC before and/or after the AGC updates the gain of the amplifier, such that click-and-pop caused when the AGC updates the gain of the amplifier is eliminated. | 07-09-2009 |
20090190779 | METHOD AND APPARATUS TO AUTOMATICALLY CONTROL AUDIO VOLUME - A method includes comparing a magnitude value of an audio signal in a fixed unit section with a target volume level, measuring audio gain in each fixed unit section using specific functions which are each determined to be different according to a ratio of the target volume level to the audio signal magnitude, and providing the measured audio gain to the audio signal in the fixed unit section. | 07-30-2009 |
20090196437 | MUTING CONTROL DEVICE, MUTING CONTROL METHOD, AND MUTING CONTROL PROGRAM - when controlling the audio signal to the mute mode from an unmute mode, first, the muting circuit switches from the non-attenuating state to the attenuating state to cause the muting circuit to attenuate the audio signal by the predetermined amount of attenuation, and then, the amount of attenuation by the volume control section is set to the maximum amount of attenuation to cause the volume control section to attenuate the audio signal by the maximum amount of attenuation. | 08-06-2009 |
20090208034 | AUDIO SIGNAL PROCESSING CIRCUIT - Plural variable gain amplifiers amplify audio signals of plural channels for each channel. An interface receives, from outside, plural gain control data individually designating gain of each channel. Plural gain controllers respectively switch the gain of the plural variable gain amplifiers, based on the plural gain control data. The plural gain controllers arrange timing to change gain of a variable gain amplifier corresponding to gain control data received in a predetermined data entry period, among the plural gain control data that are inputted at different timing. | 08-20-2009 |
20090220109 | Audio Gain Control Using Specific-Loudness-Based Auditory Event Detection - In one disclosed aspect, dynamic gain modifications are applied to an audio signal at least partly in response to auditory events and/or the degree of change in signal characteristics associated with said auditory event boundaries. In another aspect, an audio signal is divided into auditory events by comparing the difference in specific loudness between successive time blocks of the audio signal. | 09-03-2009 |
20090232330 | Apparatus and method for automatic gain control using phase information - An apparatus and a method for automatically controlling a gain using phase information are provided. The apparatus includes a frequency conversion unit converting each of input signals received from a plurality of acoustic input apparatuses to frequency input signals, a factor determination unit determining a scaling factor according to a gain difference between the input signals based on a phase difference of the frequency input signals, and a scaling performance unit performing scaling for gain compensation between the input signals based on the scaling factor. | 09-17-2009 |
20090245537 | AUTOMATIC IPOD VOLUME ADJUSTMENT - A program that would take the average db level of a music device after a certain amount of time and record at the same time the amount of time the user has been listening to the music device. The program would then automatically adjusts the volume level so that the LEQ would be at a safe level in relation to the amount of noise (music) the user has been exposed to. | 10-01-2009 |
20090245538 | Video/Audio Output Device and Video/Audio Method - According to one embodiment, a video/audio output method according to one embodiment includes detecting a playback volume value set in an external speaker controller for controlling an external speaker, calculating a decibel value corresponding to the detected playback volume value, generating an audio signal corresponding to the calculated decibel value, and outputting the generated audio signal to the external speaker controller, and, at the same time, outputting a video based on a video signal corresponding to the audio signal. | 10-01-2009 |
20090252347 | Method and Apparatus For Automatic Gain Control - A method and apparatus for Automatic Gain Control (AGC) that provides an output signal having a smooth gain variation for any input signal. The various embodiments assure that the output signal will reach a required output level in a specified attack or decay period. A curvilinear reference gain characteristic is applied to the gain variations. One example uses an exponential curve and sets an initial and final value of the gain law for both attack and decay periods as presets. The various embodiments further compute intermediate gain values of the curvilinear paths that archives the smooth variations is also proposed. Other possible curvilinear characteristics may be used such as, but not limited to, logarithmic, hyperbolic, sinusoidal, etc. that are expressible as exponentials. Intermediate gain values may be determined either by table lookup or by on the fly computation of the curvilinear characteristic. | 10-08-2009 |
20090252348 | ANTENNA IMPLEMENTATIONS IN INTERCONNECTING CABLES - Antenna system having as one element a conductors in an interconnecting cable, wherein that conductor is isolated at RF from the device at the opposite cable end, while also being tightly coupled to that device at audio frequencies and/or DC. Such an antenna is suited for use in wireless transmitters and receivers for transmitting a signal from an audio playback device to a remote audio out put device having multiple conductors interconnecting the wireless transmitter and media device, or multiple conductors interconnecting the receiver and headphones/speakers. | 10-08-2009 |
20090252349 | METHOD OF LIMITING THE MAXIMUM PERMITTED SOUND VOLUME IN AN EARPHONE, AND AN EARPHONE FOR CARRYING OUT THE METHOD - A method of limiting the maximum permitted sound volume in an earphone, a headset or the like, includes the step that the size of the driving signal for driving the earphone is sensed. The driving signal has a voltage that is less than approx. 0.7 V. If the driving signal exceeds a certain level, a part of the driving signal is shunted past the earphone. A second part of the driving signal is diverted. Either the voltage of the diverted part is increased and controls the shunt device by which the first part of the driving signal is shunted past the earphone, or it is supplied to a unit with a detector device and the shunt device. The unit is sensitive to work at voltages below approx. 0.7 V. An earphone or the like for the above-mentioned method comprises a shunt device and a detector device whose current source is the signal source of the earphone. | 10-08-2009 |
20090262954 | AUDIO SIGNAL ADJUSTING METHOD AND DEVICE UTILIZING THE SAME - An audio signal adjusting device is disclosed. The audio signal adjusting device for adjusting the amplitudes of digital audio signals received from a decoder that decodes the audio signals received from an antenna comprises a buffer, a signal abnormality detector and a fading processor. The buffer stores the digital audio signals received from the decoder. The signal abnormality detector detects the abnormality of the digital audio signals stored in the buffer and outputs a fading out enable instruction when the digital audio signals are detected as abnormal. The fading processor fades out the amplitudes of the digital audio signals stored in the buffer according to a fading out algorithm after receiving the fading out enable instruction, to output faded digital audio signals. | 10-22-2009 |
20090262955 | ELECTRONIC DEVICE AND VOLUME CONTROL METHOD OF ELECTRONIC DEVICE - A problem of the invention is to provide an electronic device and a volume control method of the electronic device capable of automatically controlling the volume when TV broadcast viewing is started or when headphones are attached/removed. To view a broadcast received in a TV broadcast data reception section ( | 10-22-2009 |
20090274322 | Volume Control Apparatus and Method - A volume control apparatus and method is provided. The volume control apparatus includes an automatic gain controller and an equal loudness controller. The method includes steps of receiving an original sound signal by the automatic gain controller, adjusting the original sound signal by the automatic gain controller according to a target volume to output an auto-gain sound signal that gradually converges to the target volume, and rendering a loudness curve according to the target volume for compensating the auto-gain sound signal to output a compensated sound signal. | 11-05-2009 |
20090290726 | Announcement System for a Building Transport - An announcement system ( | 11-26-2009 |
20090290727 | HYBRID DIGITAL/ANALOG LOUDNESS-COMPENSATING VOLUME CONTROL - A loudness-compensating volume control method imposes a desired loudness scaling on an audio signal by processing the audio signal in both the digital and analog domains by receiving a desired loudness scaling, deriving a wideband gain component and one or more other gain components from the desired loudness scaling, applying in the digital domain modifications to the audio signal based on the one or more other gain components to produce a partly-modified audio signal, and applying in the analog domain modifications to the partly-modified audio signal based on the wideband gain component. Additional loudness modifications other than volume control loudness modifications on the audio signal may also be imposed. | 11-26-2009 |
20090316932 | Volume Adjustment for Multiple Voice Over Internet Protocal Streams - Systems and methods for managing the volume of multiple VoIP streams are disclosed. The system includes a VoIP server configured to receive an input audio stream from a first VoIP handset, create separate output audio streams from the input audio stream for transmission to second and third VoIP handsets, and to connect to a communications network. The system also includes a volume control table coupled to the VoIP server, the volume control table including records of volume adjustments made during prior conversations between the two or more VoIP handsets. The VoIP server is further configured create the separate output audio streams such that one or more of the output streams has a volume that is different than input audio stream based on the records. | 12-24-2009 |
20090316933 | Miniature Speaker Device and Television Set - A miniature speaker device includes a housing, a speaker mounted on the housing, a passive radiator mounted on the housing and vibrating in resonance with vibration of the speaker and having no driving system and a low frequency range amplification circuit for amplifying sound pressure in frequency components of a low frequency range of a single audio signal input in the speaker. | 12-24-2009 |
20090323986 | Method and Apparatus for Audio Normalization - A request is received to play an audio file. A determination is made regarding whether volume normalization parameters associated with the audio file are stored in a media library. If the volume normalization parameters associated with the audio file are stored in the media library, the volume normalization parameters are retrieved from the media library. If the volume normalization parameters associated with the audio file are not stored in the media library, retrieving the volume normalization parameters from the audio file. The volume normalization parameters are applied while playing the audio file. The volume normalization process can be applied across multiple audio files during playback. | 12-31-2009 |
20100014691 | AUTONOMOUS VOLUME CONTROL - An autonomous volume control device is described which has detectors for measuring tilt and acceleration in one or more axes. The amount of tilt and acceleration is used as an indication of the amount and type of vehicle activity, thus being used also to control the volume of the vehicle's audio system. The described volume control device requires no wiring or connections to any vehicle subsystem and the device may be mounted to the vehicle without any particular orientation being required. | 01-21-2010 |
20100020988 | INDIVIDUAL AUDIO RECEIVER PROGRAMMER - Methods and devices to compensate for individual hearing loss when listening to audio systems are described. An individualized frequency configuration is applied to the output of an audio system wherein the volume of audio signals at one or more frequencies is adjusted to compensate for a user's hearing deficit. The devices are operable to work with multiple users. | 01-28-2010 |
20100027812 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - An apparatus for controlling a volume of an audio signal and method thereof are disclosed, by which a volume of an input signal can be controlled by using a non-linear gain curve and a target volume of the input signal. The present invention includes storing a non-linear gain curve indicating relations between volumes of an input signal and an output signal; receiving an input signal and target volume information; determining a first gain by using the volume of the input signal and the target volume information; determining a second gain from one of a) the volume of the input signal and the target volume information or b) the first gain, by using the non-linear gain curve; and adjusting the volume of the input signal by applying the second gain to the input signal, wherein the non-linear gain curve is generated by using non-linearity information. A volume of an input signal of this invention is controlled using a non-linear gain curve indicating a relation between a volume of an input signal and a volume of an output signal. Therefore, the present invention is able to reduce or expand a dynamic range of an output volume. | 02-04-2010 |
20100040245 | MULTI-FUNCTION HEADSET AND FUNCTION SELECTION OF SAME - A multi-function headset is disclosed. The multi-function headset includes an ear shell attached to one end of a holding means the ear shell comprising a speaker unit through which audio stimulus is provided to a user, a microphone attached on a first end of a boom assembly and engaging an engagement switch on a second end of said boom assembly with the ear shell, the engagement switch position selecting an application of the head set. In another aspect of the invention, the ear shell further comprises a first switch engaging the boom assembly when the boom assembly is in a retracted position. In another embodiment of the invention, a headset including an ear shell attached to one end of a holding means is disclosed. The ear shell comprising a speaker unit through which audio stimulus is provided to a user, and means for adjusting a volume through the speaker unit wherein the means is selected from the group consisting of: pressure determining sensors and switches. | 02-18-2010 |
20100054499 | APPARATUS AND METHOD FOR CONTROLLING AUDIO OUTPUT, AND MOBILE TERMINAL SYSTEM USING THE SAME - An audio output controlling apparatus and method, and a mobile terminal system using the same control settings of an audio out port according to whether an audio frame includes an audio signal. The audio output controlling method includes receiving an audio frame, determining whether an audio signal is included in the audio frame, and setting, depending on whether the audio signal is included in the audio frame, a power voltage provided to an audio out port. The mobile terminal includes a wireless transceiver; an audio unit, through an audio out port, an audio frame among the wireless data; and an audio output controlling unit to control a power voltage of the audio out port. The apparatus includes a section determining unit; and a power controlling unit to set a power voltage provided to an audio out port according to whether the audio signal is included in the audio frame. | 03-04-2010 |
20100067718 | MODIFICATIONS OF AUDIO COMMUNICATIONS IN AN ONLINE ENVIRONMENT - A system and method to modify audio communications in an online environment and, in particular, to modifying audio communications using one or more parameters. The system includes a module configured to detect one or more parameters applicable to an incoming audio communication and a weighing engine configured to weigh the one or more parameters and obtain a weighted volume. The system further includes a module configured to transmit the weighted volume to a user participating in a virtual universe. The method determines whether one or more parameters apply to an incoming communication, weighs the incoming communication based on the one or more parameters to determine a weighted volume of the incoming communication, and transmits the incoming communication to a user at the weighted volume. | 03-18-2010 |
20100074456 | SYSTEM FOR ADJUSTING PLAYING VOLUME ACCORDING TO PREDETERMINED TIME AND METHOD FOR THE SAME - A system for adjusting playing volume according to a predetermined time and a method for the same are provided. The system includes a time data unit, a volume adjustment database, a volume control unit, and an audio frequency module. The time data unit generates a current time data. The volume adjustment database is built-in and configured to store an audio variation data. The audio frequency module receives and outputs an audio frequency signal. By reference to the current time data and the audio variation data, the volume control unit adjusts variation of the audio frequency signal outputted in real time, thereby enchanting audience and enhancing delivery of advertisement messages. | 03-25-2010 |
20100080402 | System and Method for Volume Control Based on Location - A system and method control a volume based on location. The system comprises a switch and an asset. The switch is for a network including an operating area for a region. The region is divided into a plurality of zones. The asset is disposed in one of the zones. The asset includes an audio output device. The audio output device is set to a predetermined volume level as a function of one of the plurality of the zones in which the asset is disposed. | 04-01-2010 |
20100080403 | Post phase-inverter volume control - A post phase-inverter master volume regulator for use in combination with a tube-type musical amplifier having a phase-inverter tube. The signals at both sides of the phase-inverter tube's DC voltage plate are extracted from the amplifier for processing by the master volume regulator. In one embodiment, such signals are extracted by inserting a male/female tube base between the amplifier's phase-inverter tube and its socket. The two voltage plate signals are then transmitted through a multiconductor umbilical to an exterior enclosure. Each signal is connected to ground through its respective user adjustable rheostat, permitting the user to simultaneously change the inverter-tube's two voltage signals (and vary the amplifier's volume). The regulator may also include circuitry adapted to provide a bass-boost, and/or a high frequency cutoff. Sometimes, first and second volume controls may be provided to permit a user to quickly change between two volume settings. In another embodiment, a dual-ganged pot, for controlling the volume, would be mounted directly in the tube base, thereby eliminating the need for an umbilical and an exterior enclosure. | 04-01-2010 |
20100098267 | Method And Apparatus For Layered Audio - A system and method for providing layered audio which allows a user to selectively and simultaneously listen to multiple audio sources for limited time periods and switch between these layered audio sources. The system allows a user to discernibly listen to two content sources at the same time. | 04-22-2010 |
20100128903 | A METHOD AND AN APPARATUS FOR DAMPING A SONIC SIGNAL - A method for limiting the sound volume in an earphone, a headset ( | 05-27-2010 |
20100128904 | DYNAMIC VOLUME CONTROL AND MULTI-SPATIAL PROCESSING PROTECTION - A disclosed system and method dynamically controls the perceived volume of a stereo audio program including left and right channel signals. The system comprises: a dynamic volume control configured and arranged so as to maintain a perceived constant volume level of the stereo audio program; and an excessive spatial processing protection processor configured and arranged for controlling the level of a difference signal, created as a function of the right channel signal subtracted from the left channel signal (L−R), relative to the level of a sum signal, created as a function of the right channel signal plus the left channel signal;; wherein the excessive spatial processing protection processor processes the audio signals so as to control the difference (L−R) signal relative to the sum (L+R) signal. A system and method are also provided for dynamically controlling the perceived volume of a stereo audio program including left and right channel signals, comprising: a dynamic volume control configured and arranged so as to maintain a perceived constant volume level of the stereo audio program; and a program change detector configured and arranged to provide a program change signal indicating that the volume of the left and right channel signals has dropped below a threshold level for at least a threshold time period so as to anticipate a possible change in the sound level of the left and right channel signals; wherein the dynamic volume control is responsive to the program change signal. | 05-27-2010 |
20100142729 | SOUND VOLUME CORRECTING DEVICE, SOUND VOLUME CORRECTING METHOD, SOUND VOLUME CORRECTING PROGRAM AND ELECTRONIC APPARATUS - A sound volume correcting device includes: a first component gain control unit configured to control a gain of a main first component signal, which contains a part of a plurality of audio components as a main component, out of input audio signals including the plurality of audio components and outputting the main first component signal; a first component gain control signal generator configured to generate a first component gain control signal for allowing the first component gain control unit to control the gain of the main first component signal in a first gain control way; and an other component output unit configured to output other audio components other than the first component of the input audio signals in a second gain control way different from the first gain control way. | 06-10-2010 |
20100158275 | METHOD AND APPARATUS FOR AUTOMATIC VOLUME ADJUSTMENT - The invention provides an apparatus capable of automatic volume adjustment. In one embodiment, the apparatus comprises a speaker, an array microphone located in the vicinity of the speaker, a beamforming module, a signal-to-noise ratio calculation module, and a volume adjustment module. The speaker first broadcasts a first audio signal. The array microphone converts a sound into a plurality of second audio signals. The beamforming module derives a speaker sound signal and an ambient noise signal from the second audio signals, wherein the speaker sound signal mainly comprises speaker sound components generated by the speaker and the ambient noise signal mainly comprises noises other than the speaker sound components. The signal-to-noise ratio calculation module calculates a ratio of a first power of the speaker sound signal to a second power of the ambient noise signal to obtain a signal-to-noise ratio. The volume adjustment module then adjusts a volume of the first audio signal according to the signal-to-noise ratio before the first audio signal is delivered to the speaker. | 06-24-2010 |
20100166223 | ADJUSTING ACOUSTIC SPEAKER OUTPUT BASED ON AN ESTIMATED DEGREE OF SEAL OF AN EAR ABOUT A SPEAKER PORT - A degree of seal of an ear about a speaker port may be estimated by detecting touch contact between the ear and at least one touch sensor in fixed relation to the speaker port. The degree of seal is estimated based on the detected touch contact. Based upon the estimated degree of seal, the acoustic output of the speaker may be adjusted. The adjustment may compensate for perceived changes to the quality of the acoustic output resulting from the degree of seal. The at least one touch sensor may be a plurality of touch sensors spaced around the speaker port. Each sensor may have a truncated wedge shape, with a narrow end closest to the speaker port. Upon receipt of user input indicative of a high degree of ear seal, a sample of the sensor(s) may be taken and stored for using during future estimation of the degree of seal. | 07-01-2010 |
20100166224 | LOUDNESS CIRCUIT WITHOUT OPERATIONAL AMPLIFIER - A loudness circuit without operational amplifiers is provided. The loudness circuit includes a first equivalent resistance circuit for accepting an audio signal; a second equivalent resistance circuit connected to the first equivalent resistance circuit; and a series resistor and capacitor, parallel connected with the second equivalent resistance circuit for determining zeros of the loudness circuit; wherein the first and the second equivalent resistance circuit, the resistor and the capacitor regulates the output gain of the loudness circuit in all frequency bands such that the gain is raised in a predetermined low-frequency band and reduced in a predetermined high-frequency band, and a loudness signal is output from the second equivalent resistance circuit such that zeros of the loudness circuit are fixed. | 07-01-2010 |
20100166225 | SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD AND PROGRAM - A signal processing apparatus includes a first audio adjustment information generator generating a first audio adjustment information in accordance with an audio signal in a content item, a sound input unit, a sound output unit, an audio separator separating the audio signal from noise signals which are both output from the sound output unit and are detected by the sound input unit, a second audio adjustment information generator generating a second audio adjustment information in accordance with the noise signals separated by the audio separator, and an audio adjustment unit adjusting a volume of the audio signal output in the sound output unit in accordance with the first and second audio adjustment information. | 07-01-2010 |
20100172516 | TO SYSTEMS FOR ACOUSTIC DIFFUSION - Described is a unit for amplifying and processing audio signals for driving an electro-acoustic transducer (D), comprising: an input for audio signals; a processor for audio signals ( | 07-08-2010 |
20100177912 | System and Method for Providing Volume Control - User volume control when switching from one external input port to another is provided. Once a user request to switch from one input port to another is received by an electronic user device, a determination may be made as to whether there is a stored user-defined default volume level that corresponds to the user requested or selected input port. If so, this previously-stored user-defined default volume level may be retrieved from memory and used to adjust the current volume setting of the electronic user device. Once the volume level has been adjusted in accordance with the user-defined default information, the user electronic device may then switch to the requested input port in accordance with the user's request. | 07-15-2010 |
20100202632 | LOUDNESS MODIFICATION OF MULTICHANNEL AUDIO SIGNALS - Scaling, by a desired amount s | 08-12-2010 |
20100202633 | SOUND SYSTEM, SOUND REPRODUCING APPARATUS, SOUND REPRODUCING METHOD, MONITOR WITH SPEAKERS, MOBILE PHONE WITH SPEAKERS - The present invention relates to an apparatus for reproducing sound, a method for reproducing sound, a monitor with speakers, and a mobile phone with speakers. An apparatus according to the present invention is an apparatus for reproducing sound from original source signals, and comprises a control means, a first speaker, and a second speaker. The control means receives first and second original source signals, and controls magnitudes and phases of the received first and second original source signals so that a sound pressure level in a pre-determined zone is higher than a sound pressure level in zone other than the pre-determined zone, and outputs first and second controlled source signals. The first speaker receives the first controlled source signal and reproduces sound. The second speaker receives the second controlled source signal and reproduces sound. The apparatus according to the present invention can provide the sound environment in which only the person using the sound system enjoys the sound. | 08-12-2010 |
20100208917 | AUDITORY SENSE CORRECTION DEVICE - There is provided an auditory sense correction device capable of adding favorable loudness characteristics to an output sound without depending on sound source characteristics of an audio signal even when a high-frequency band or a low-frequency band of the audio signal has already been subjected to loudness correction. The auditory sense correction device | 08-19-2010 |
20100208918 | VOLUME CORRECTION DEVICE, VOLUME CORRECTION METHOD, VOLUME CORRECTION PROGRAM, AND ELECTRONIC EQUIPMENT - A volume correction device includes: a variable gain means for controlling a gain, given to an input audio signal, according to a gain control signal; a consecutive relevant sounds interval detection means for detecting a consecutive relevant sounds interval, during which a group of temporally adjoining consecutive relevant sounds is present, in the input audio signal; a mean level detection means for detecting the mean level of the input audio signal attained during the consecutive relevant sounds interval, and whose time constant for mean level detection is set to a smaller value during the leading period of the consecutive relevant sounds interval than during the remaining period; a gain control signal production means for producing the gain control signal, so that the mean level will be equal to a reference level, and feeding the gain control signal to the variable gain means. | 08-19-2010 |
20100226510 | SIGNAL CHARACTERISTIC ADJUSTMENT APPARATUS AND SIGNAL CHARACTERISTIC ADJUSTMENT METHOD - A coefficient calculation unit calculates a coefficient (p) according to input signals (x[n]).A balance setting unit decides, according to this coefficient (p), a coefficient used to control the level of a signal in a digital level correction unit and a coefficient used to adjust the characteristics of a signal in a characteristic correction unit, thus allowing the digital level correction unit and characteristic correction unit to execute adaptive processing | 09-09-2010 |
20100226511 | APPARATUS AND METHOD FOR CONTROLLING VOLUME IN PORTABLE TERMINAL - An apparatus and a method for controlling a volume in a mobile terminal are provided. The apparatus includes a motion detector and a controller. The motion detector outputs motion information from a user's movement. The controller determines the user's activity from the motion information output from the motion detector, and determines an appropriate output volume level responsive to the activity. | 09-09-2010 |
20100246855 | DYNAMIC AUDIO PARAMETER ADJUSTMENT USING TOUCH SENSING - An audio communications device has a handset in which a touch sensing ear piece region is coupled to an acoustic leakage analyzer. The acoustic leakage analyzer is to analyze signals from the touch sensing ear piece region and on that basis adjust an audio processing parameter. The latter configures an audio processor which generates an audio receiver input signal for the device. Other embodiments are also described and claimed. | 09-30-2010 |
20100260355 | Sound Processing Apparatus, Sound Processing Method, Information Recording Medium, and Program - In a sound processing apparatus ( | 10-14-2010 |
20100272290 | LOUDNESS CONSISTENCY AT PROGRAM BOUNDARIES - Improving loudness consistency of an audio stream may include delaying an encoded audio stream and adjusting the delayed encoded audio stream based at least in part on the loudness of the audio stream before a transition and the loudness of the audio stream after the transition. Improving loudness consistency of an audio stream may further include determining the loudness of the audio stream before the transition, detecting the transition, storing the loudness of the audio stream before the transition, and determining the loudness of the audio stream after the transition. | 10-28-2010 |
20100284548 | 3-Point positioning device and method thereof - A 3-point positioning device senses a scene including an auxiliary positioning module by means of an image sensor, and accordingly generates a sensed image. The auxiliary positioning module comprises a first, a second, and a third auxiliary positioning units. By means of the sensed image, the 3-point positioning device recognizes a first, a second, and a third sensing units of the image sensor corresponding to the first, the second, and the third auxiliary positioning units. In this way, the 3-point positioning device can calculate out an absolute location of the auxiliary positioning module according to the locations or the received power of the first, the second, and the third sensing units. | 11-11-2010 |
20100303259 | ELECTRONIC DEVICE AND METHOD FOR USING THE SAME - An electronic device includes an audio module, a processor module connected to the audio module, and a sensor module connected to the processor module. The processor module directs the sensor module to detect temperatures at predetermined positions when the audio module plays back audio content, and the processor module regulates the playback volume or turns off the audio module according to the detected temperatures. | 12-02-2010 |
20100310094 | DISPLAY DEVICE AND DRIVING METHOD THEREOF - A display device and a method of driving the display, wherein the volume of background music is controlled depending upon the color or brightness of display images, and the power consumption is reduced. The display device includes a display unit with a plurality of pixels, a signal controller, and a volume controller. The display unit displays images by selectively activating pixels from among the plurality of pixels in accordance with input video signals and input image control signals. The signal controller reads the input video signals to generate on-pixel signals having information about the ratio of a number of the active pixels compared to a total number of pixels in the plurality of pixels per each frame. The volume controller determines a range from among predetermined ratio ranges corresponding to the ratio of the number of active pixels to define a plurality of volume levels, and determine the volume level corresponding to the on-pixel signal to control the volume according to the ratio corresponding to the determined volume level. | 12-09-2010 |
20110002481 | AUDIO SIGNAL AMPLITUDE ADJUSTING DEVICE AND METHOD - An audio signal amplitude adjusting device and method that can always adjust the amplitude of an input audio signal to such a level as to be easy to hear with making it follow each shift in the level of the input audio signal, thus preventing the occurrence of the sense of aural discomfort and an interruption of a voice. The gain of a variable attenuator for adjusting the amplitude of the audio signal is controlled in various ways. When a momentary large noise sound is contained in the audio signal, the gain reduced state invoked to suppress the effect of the noise sound is detected, and thereafter if the amplitude of the audio signal has become smaller than the reference level due to the noise sound ending, the gain is increased each period that is shortest among the periods of control employed. | 01-06-2011 |
20110013784 | DEVICE AND METHOD FOR COMPENSATING SUPPLY VOLTAGE FROM POWER SUPPLY AND ELECTRONIC APPARATUS - A device is used for compensating a supply voltage from a power supply, the supply voltage powers an audio device. The device includes a detecting circuit and a storing circuit. The detecting circuit is used for detecting an audio signal from the audio device, generating a first level signal when detecting that the audio signal has a first characteristic, and generating a second level signal when detecting that the audio signal has a second characteristic. The storing circuit is used for storing energy according to the first level signal, and releasing energy to increase the supply voltage according to the second level signal. A related method and electronic apparatus are also provided. | 01-20-2011 |
20110013785 | APPARATUS AND METHOD FOR CONTROLLING A PORTABLE TERMINAL - A method for controlling a portable terminal includes confirming whether volume of sound input to microphones is a predetermined level or greater, confirming whether sound having volume of the predetermined level or greater has been input for a predetermined time period or more, confirming whether a pair of microphones to which sound having symmetrical volume has been input is present, among microphones to which sound having volume of the predetermined level or greater has been input for the predetermined time or more, and if so, confirming that scroll input by a user has been performed in an arrangement direction of the pair of microphones. | 01-20-2011 |
20110019839 | ADAPTIVE GAIN CONTROL FOR DIGITAL AUDIO SAMPLES IN A MEDIA STREAM - An adaptive gain control system and related operating method for digital audio samples is provided. The method is suitable for use with a digital media encoding system that transmits encoded media streams to a remotely-located presentation device such as a media player. The method begins by initializing the processing of a media stream. Then, the method adjusts the gain of a first set of digital audio samples in the media stream using a fast gain adaptation scheme, resulting in a first group of gain-adjusted digital audio samples having normalized volume during presentation. The method continues by adjusting the gain of a second set of digital audio samples in the media stream using a steady state gain adaptation scheme that is different than the fast gain adaptation scheme, resulting in a second group of gain-adjusted digital audio samples having normalized volume during presentation. | 01-27-2011 |
20110033065 | AUTOMATIC AND DYNAMIC NOISE CANCELLATION FOR MICROPHONE-SPEAKER COMBINATIONS - An audio host device has a headset electrical interface in which a reference contact is shared by a microphone and a speaker. A variable or programmable gain amplifier, PGA, has a signal input coupled to a sense point for the reference contact. A first difference amplifier has its inputs coupled to a microphone contact and the PGA through a first gain stage; a second difference amplifier has its inputs coupled to the microphone contact and to the output of the PGA, through a second gain stage having a different gain than the first gain stage; a third difference amplifier has its inputs coupled to the microphone contact and the output of the PGA through a third gain stage having a gain in between that of the first and second gain stages. A controller monitors outputs of the first and second difference amplifiers and changes a gain setting of the PGA. Other embodiments are also described and claimed. | 02-10-2011 |
20110038491 | Passive sound pressure level limiter - A passive sound pressure level (SPL) limiter is provided that can be used with audio sources of varying drive levels and headsets, earbuds, etc. of varying sensitivity. The SPL limiter includes a control circuit that includes a rectifier and, in most configurations, a step-up transformer. The SPL limiter also includes a limiting circuit that utilizes a transistor to shunt current from the audio source in proportion to a control signal output by the control circuit. The control circuit may further include a low pass filter, for example an RC filter, and one or more fast limit diode paths. The limiting circuit may further include a feedback network to increase the linear behavior of the limiting circuit. | 02-17-2011 |
20110044474 | System and Method for Adjusting an Audio Signal Volume Level Based on Whom is Speaking - A speech characteristic, such as a volume level of a call participant is derived; the derived speech characteristic is associated with an identifier, such as a caller ID number. The speech characteristic and identifier are stored in a call participant profile. An adjustment of volume level of an audio signal of the call participant is made based on the measured speech characteristic and the identifier in the call participant profile. | 02-24-2011 |
20110051959 | Sound Volume Adjusting Apparatus - A sound volume adjuster includes: a storage which stores a first value of a volume setting value and an allowable maximum change amount; a receiver which receives a change request indicating a second value of the volume setting value; a determiner which, when a change amount of the volume setting value between the first value and the second value exceeds the allowable maximum change amount, determines that the change request is an excessive request; and an adjuster which, when the determiner determines that the change request is the excessive request: changes the first value stored in the storage by a change amount which is equal to or smaller than the allowable maximum change amount to set a third value of the volume setting value; and adjusts a sound volume by the third value. | 03-03-2011 |
20110064246 | Microphone Interface and Method of Operation - An interface is provided between a transducer and audio processing circuitry. The interface has a switching device coupled to the transducer. The interface also has a first signal path that is selectively coupled to transducer via the switching device and includes a first output, the first signal path being configured to selectively receive input signals from the transducer, and form a first output signal at the first output by amplifying the input signals to provide a first gain. The first output is coupled to the audio processing circuitry. A second signal path is provided that is selectively coupled to the transducer via the switching device and includes a second output. The second gain is selected to be substantially larger than the first gain. The switching device is configured to switch the input signal between the first signal path and the second signal path. | 03-17-2011 |
20110075861 | Method and Apparatus for Controlling Audio Input Amplitude - Amplitude of an audio input may be dynamically controlled within a predefined range of an analog-to-digital converter (ADC) threshold voltage. In one embodiment, an analog audio signal having a first voltage amplitude may be received by an amplifier. The analog audio signal may be amplified based on a gain control signal and converted to digital audio data by the ADC. The difference of the first voltage amplitude and the threshold voltage of the ADC may be determined and a gain control signal can be adjusted for the amplifier based, at least in part, on the difference in the first voltage amplitude and the threshold voltage of the ADC. The received analog audio signal characterized by a second voltage amplitude can be output. | 03-31-2011 |
20110075862 | Method and Apparatus for Mute Control - System and method for muting an output terminal of an electronic device. In one embodiment, the process for can include receiving one or more signals received by the controller over the first terminal, detecting a mute control signal from the controller and controlling the state of a switch coupled to the output terminal to ground the output terminal based on detecting the mute control signal. | 03-31-2011 |
20110081027 | AUDIO REPAIR METHODS AND APPARATUS - An audio recording may be repaired by implementing a processor to process the harmonic signal content of the audio recording; calculating a difference signal from the harmonic signal content by subtracting a predicted harmonic signal from a detected harmonic signal, the predicted harmonic signal being obtainable by a predictor means and the detected harmonic signal being detected by the processor; defining a threshold for the difference signal above which the difference signal indicates the occurrence of one or more acoustic excitation events; and thereby producing an events display which allows an operator to visually distinguish between indicated excitation events that are present as a result of a disturbance in the audio recording and indicated excitation events that are present as a result of natural harmonics in the audio recording; and repairing one or more of the displayed excitation events by a repair circuit which is in communication with the processor. | 04-07-2011 |
20110081028 | Addressable amplified speaker assembly and method for addressing the same - Addressable amplified speakers assembly, and method for addressing the same, suitable for any permanent or temporary public address paging application. Amplified speakers assembly may incorporate VHF and UHF radios to provide wireless, one-way paging from a few feet to many miles away. These speakers can be added to any existing radio system with minimal effort or cost. The need for routing signal cable is eliminated, greatly reducing installation costs. Each speaker can be programmed for individual, group, or all-page access via DTMF or 2-Tone coding (up to 8 different addresses). The volume of each speaker can also be controlled remotely. | 04-07-2011 |
20110081029 | ACOUSTIC PROCESSING DEVICE - There is provided an acoustic processing device capable of applying acoustic processing matching listener's sense to reproduce an audio signal with satisfactory sound quality in terms of auditory sense irrespective of the characteristics of a sound source. The acoustic processing device ( | 04-07-2011 |
20110085679 | Intelligent Selective System Mute - An approach is provided that receives a sound request from a requesting process. A selective mute setting is identified that corresponds to user enablement actions. If the selective mute setting is disabled the sound request is played at an audio output in response. However, if the selective mute setting being enabled, then steps are performed to determine whether to play the sound request. These steps include determining whether the sound request corresponds to one or more user sound request actions. If it is determined that the sound request corresponds to at least one of the user sound request actions then the sound request is audibly played at the audio output. However, if the sound request does not correspond to at least one of the user sound request actions, then the audio request is suppressed and not played at the audio output. | 04-14-2011 |
20110085680 | Apparatus for detecting the approach distance of a human body and performing different actions according to the detecting results - An apparatus for detecting the approach distance of a human body and performing different actions according to the detecting results comprises: an infrared sensing circuit for sensing the human body's movement; a short-distance infrared signal level detector, used for detecting the amplitude level of signals and comparing them with a preset reference level; a long-distance infrared signal level detector, used for detecting the amplitude level of signals and comparing them with another preset reference level; and a long-distance indication-signal time delayer, used for delaying the output of the signals from the long-distance-signal level detector. During the delayed period, a soft pre-recorded speech is sent off to greet customers and introduce merchandize when the short-distance-signal level detector detects a “short-distance” signal with larger amplitude, whereas a louder pre-recorded speech is sent off to draw the attention of customers when no “short-distance” signal is detected by the short-distance-signal level detector. | 04-14-2011 |
20110085681 | ACOUSTIC PROCESSING DEVICE - There is provided an acoustic processing device capable of maintaining volume and reproducing audio signals with good sound quality independent of the media audio encoding format, sound source type or sound source volume setting. In the acoustic processing device ( | 04-14-2011 |
20110096943 | Audio Console System - An audio console system includes an input for receiving an audio signal. The system may also include a user adjustable input amplifier which may amplify audio signals received from the input with a predefined gain. The system may additionally include a direct out output amplifier provided after the adjustable input amplifier. The direct out output amplifier may output a direct out output signal. The direct out output amplifier may adjust a gain of a signal transmitted from the adjustable input amplifier. The direct output amplifier may be configured in such a way, that, upon a user adjustment of the adjustable input amplifier, the direct out output amplifier may adjust the gain of the direct out output signal inversely to the adjustment of the input amplifier resulting in a predefined gain of the audio signal from the at least one input to the direct out output being maintained. | 04-28-2011 |
20110103617 | SOUND SOURCE RECORDING APPARATUS AND METHOD ADAPTABLE TO OPERATING ENVIRONMENT - Disclosed herein is a sound source recording apparatus and method adaptable to an operating environment, which can record a target sound source at a predetermined level without being affected by characteristics of the sound source or ambient noise. A target sound source is separated from a sound source signal received through an array of microphones and a recording sound pressure level and a gain are estimated using a reference sound pressure level and a reference distance for the target sound source, thereby controlling or adjusting the gain of the microphones. | 05-05-2011 |
20110110534 | ADJUSTABLE VOICE OUTPUT BASED ON DEVICE STATUS - This is directed to providing voice audio output to a user of an electronic device. To allow a user to immediately recognize the status of one or more processes or components of the electronic device from voice audio output, independent of the content of the voice audio output, the electronic device can adjust the voice audio output based on the status of the device. For example, the voice audio output can be adjusted to sound more or less tired based on the battery level of the device. As another example, the pitch or speed of voice audio output can change to identify the particular network or type of network to which a device is connected. The change in voice audio output can be correlated to any suitable device status, including for example using a linear or non-linear correlation. | 05-12-2011 |
20110123047 | AUDIO PROCESSING SYSTEM FOR AN AUDIO OUTPUT DEVICE - An exemplary audio processing system includes a gain control unit, a sampling unit, and a triggering unit. The gain control unit is configured for amplifying an audio signal. The sampling unit is configured for sampling the audio signal. The triggering unit is configured for generating a gain reduction unit if the amplitude exceeds a predetermined value over a predetermined time period. The first predetermined value is set so that if the amplitude of the audio signal exceeds the predetermined value and the gain of the gain control unit is not reduced, the amplitude of the amplified audio signal exceeds a predetermined acceptable range. The gain control unit is also configured for reducing the gain of the gain control unit responding to the gain reduction signal to limit the amplitude of the amplified audio signal within the predetermined acceptable range. | 05-26-2011 |
20110135114 | IMAGE DISPLAY DEVICE, CONTROL METHOD AND COMPUTER PROGRAM - Provided is an image display device provided with an image display unit for displaying a still image or a moving image, an image capturing unit for capturing the image in a direction in which the image display unit displays the image on the image display unit, and a face detection unit for performing, at predetermined intervals, face detection processing for detecting a face included in the image captured by the image capturing unit, wherein the predetermined intervals are variable according to whether or not the face of a user is included in the image captured by the image capturing unit, and when the position of the detected face does not change for a predetermined period of time in the face detection processing, the face detection unit does not detect the face as the face of the user. | 06-09-2011 |
20110135115 | SOUND ENHANCEMENT APPARATUS AND METHOD - A sound enhancement apparatus and method which produce low IMD over a broadband frequency region and performs BSE to offer a sound which is natural to the human ears, are provided. The sound enhancement apparatus includes a preprocessor, a BSE signal generator, and a gain controller. The preprocessor divides a source signal into a high-frequency signal and a low-frequency signal and analyzes the low-frequency signal to obtain prediction information regarding a degree of distortion that will be generated by the low-frequency signal. The BSE signal generator generates a higher harmonic signal for the low-frequency signal as a BSE signal to be substituted for the low-frequency signal, wherein the order of the higher harmonic signal is adjusted based on the prediction information regarding the degree of distortion. The gain controller adjusts a synthesis ratio of the low-frequency signal and the BSE signal adaptively depending on the prediction information regarding the degree of distortion. | 06-09-2011 |
20110142261 | MEMS Microphone with Programmable Sensitivity - A control circuit monitors a signal produced by a MEMS or other capacitor microphone. When a criterion is met, for example when the amplitude of the monitored signal exceeds a threshold or the monitored signal has been clipped or analysis of the monitored signal indicates clipping is imminent or likely, the control circuit automatically adjusts a bias voltage applied to the capacitor microphone, thereby adjusting sensitivity of the capacitor microphone. | 06-16-2011 |
20110150242 | ADAPTIVE LOUDNESS LEVELLING FOR DIGITAL AUDIO SIGNALS - A time-domain method of adaptively levelling the loudness of a digital audio signal is proposed. It selects a proper frequency weighting curve to relate the volume level to the human auditory system. The audio signal is segmented into frames of a suitable duration for content analysis. Each frame is classified to one of several predefined states and events of perceptual interest is detected. Four quantities are updated each frame according to the classified state and detected event to keep track of the signal. One quantity measures the long-term loudness and is the main criterion for state classification of a frame. The second quantity is the short-term loudness that is mainly used for deriving the target gain. The third quantity measures the low-level loudness when the signal is deemed to not contain important content, giving a reasonable estimate of noise floor. A fourth quantity measures the peak loudness level that is used to simulate the temporal masking effect. The target gain to maintain the audio signal to the desired loudness level is calculated by a volume leveller, regulated by a gain controller that simulates the temporal masking effect to get rid of unnecessary gain fluctuations, ensuring a pleasant sound. | 06-23-2011 |
20110158432 | Audio Volume Control Circuit and Method Thereof - An audio volume control circuit includes a signal intensity calculating circuit for generating a first signal intensity value corresponding to a signal intensity corresponding to an audio channel data; a low-pass filter for filtering the first signal intensity to generate a second signal intensity value; an averaging unit for averaging the second signal intensity value and previous M−1 second signal intensity values to obtain a third signal intensity value, with M being a natural number greater than 1; a gain calculating circuit for obtaining an original gain value according to the third signal intensity value with reference to the adjustment condition; a buffer for temporarily storing the audio channel data; and an audio volume adjusting circuit for generating an adjustment gain value according to the original gain value to adjust the audio channel data stored in the buffer. | 06-30-2011 |
20110158433 | SPEAKER SYSTEM AND SPEAKER DRIVING CIRCUIT - A speaker system includes a first speaker, a second speaker and a driving circuit. The first speaker and the second speaker are different types of speakers. The driving circuit drives the first speaker with a first driving voltage and a first driving current and drives the second speaker with a second driving voltage and a second driving current, wherein the first driving voltage is larger than the second driving voltage and the first driving current is smaller than the second driving current. The present disclosure further provides a speaker driving circuit. | 06-30-2011 |
20110164763 | AUDIO AND VIDEO RECORDING AND REPRODUCTION APPARATUS FOR REPRODUCING AUDIO SIGNALS HAVING DIFFERENT VOLUME LEVELS - An audio and video recording and reproduction apparatus includes an audio signal switch section for outputting one of a first audio signal having a first volume level and a second audio signal having a second volume level by a switching operation; and a mute section for muting the first audio signal which is output from the audio signal switch section when the audio signal switch section switches the second audio signal to the first audio signal. | 07-07-2011 |
20110170713 | AMPLIFICATION APPARATUS - An amplification apparatus comprises: an amplifier circuit that amplifies an input audio signal and outputs an output audio signal; a first signal level determining unit that determines whether or not a signal level of the output audio signal outputted from the amplifier circuit is lower than a silence determination reference value; and a power-supply control unit that shifts the amplification apparatus from a power-on state to a power-off state, when it is determined that the signal level of the output audio signal outputted from the amplifier circuit is lower than the silence determination reference value. | 07-14-2011 |
20110182441 | INTERACTION OF SOUND, SILENT AND MUTE MODES IN AN ELECTRONIC DEVICE - This is directed to controlling the output of audio based on the mode of an electronic device. In particular, this is directed to an electronic device having a sound mode, silent mode, and mute mode controlling the output of audio along different audio output routes. In the sound mode, all audio can be output, while only registered or authorized audio can be output in the silent mode. In the mute mode, no audio can be output. The sound and silent modes can be enabled using an interface of the device (e.g., a switch having two possible states), while the mute mode can be enabled using an accessory coupled to the device. To disengage the mute mode, a user can provide a corresponding instruction using the accessory, or providing an instruction on the device related to volume control. For example, a user can change the device volume using an on-device interface, or toggle a sound/silent switch to a sound mode. | 07-28-2011 |
20110200210 | INFORMATION PROCESSING DEVICE AND METHOD AND PROGRAM - An information processing device includes: an output device configured to perform notification to a user by outputting ringing sound; a sound pickup device configured to pick up surrounding sound as ambient sound; an adaptive filtering process device configured to perform an adaptive filtering process using the picked-up ambient sound and the ringing sound output from the output device, to thereby extract, from the ambient sound, estimated environmental sound from which the ringing sound picked up by the sound pickup device has been removed; and a control device configured to control, on the basis of the feature quantity of a predetermined feature extracted from the estimated environmental sound, the adjustment of at least one of the sound volume and the sound quality of the ringing sound. | 08-18-2011 |
20110222710 | METHOD AND APPARATUS FOR AUTOMATICALLY REDUCING A VOLUME LEVEL OF AN AUDIO SIGNAL PROVIDED TO A USER - The present invention provides a method of automatically reducing a volume level of an audio signal provided to a user. An audio signal is received, the audio signal is provided to the and a current hearing threshold for the user based on one or more psychophysical or electrophysiological responses of the user to the audio signal provided to the user is determined. A temporary threshold shift (TTS) based on the current hearing threshold is determined. If the TTS is above the specified TTS, the volume level of the audio signal provided to the user is automatically reduced. | 09-15-2011 |
20110228953 | AUTOMATIC CORRECTION OF LOUDNESS LEVEL IN AUDIO SIGNALS - Systems and method for adapting a gain of an audio signal containing at least two different tracks with different signal level ranges. An example system includes a loudness determination unit for determining a perceived loudness of the audio input signal based on a psychoacoustic model of a human hearing. The system further includes a loudness adaptation unit configured to determine a loudness adaptation indicator based on the perceived loudness and a predetermined loudness, and to introduce the loudness adaptation indicator into the audio signal to generate an adapted gain signal. A gain determination unit is configured to adapt the gain for outputting the audio signal containing the at least two tracks based on the loudness adaptation indicators in the adapted gain signal at about the predetermined loudness. | 09-22-2011 |
20110235825 | MIXER - In a mixer, each input channel adjustment unit includes a main system unit that generates a main system signal, and a plurality of MIX send units that generate a plurality of MIX send signals. In each MIX send unit, a signal selection unit selects an audio signal from a plurality of audio signals being involved in the main system unit and including at least an audio signal to be inputted to a filter unit of the main system unit and an audio signal to be inputted to a main system gain adjustment unit. A linked gain setting unit of the MIX send unit applies a gain that increases or decreases in linking with the gain of the main system gain adjustment unit, to the audio signal that is selected by the signal selection unit. A linked ON/OFF unit of the MIX send unit sets ON state or OFF state of the audio signal that is selected by the signal selection unit in linking with the ON state or OFF state of a main system ON/OFF unit. | 09-29-2011 |
20110255712 | AUDIO SIGNAL ADJUSTMENT DEVICE AND AUDIO SIGNAL ADJUSTMENT METHOD - To perform volume control matching the actual auditory sensation level of a human so as to improve the control accuracy. As shown in FIG. | 10-20-2011 |
20110255713 | AUTOMATIC VOLUME CONTROL FOR AUDIO SIGNALS - A technique is provided for automatically adjusting the volume, or magnitude, of an audio signal. The technique includes calculating an average power associated with a segment of an input audio signal, determining whether the average power is greater than an estimated signal level associated with one or more previously-processed segments of the input audio signal and, depending on the determination, either calculating an updated estimated signal level by subtracting from the average power an attenuated difference between the estimated signal level and the average power or setting the updated estimated signal level to the average power. A gain to be applied to the segment of the input audio signal is then determined based on the updated estimated signal level and a target signal level for an output audio signal. | 10-20-2011 |
20110268294 | PROVIDING ATHLETIC TRAINING INFORMATION - An audible playback device that allows an athlete, such as a runner, to conveniently listen to audible content and receive athletic performance information. A device may be employed to both playback audible content and provide monitored performance information to a user. The performance information may be provided to a user audibly, so that the user does not need to move the monitoring device's user interface to a viewable position, or visually. For example, if the user does not wish to interrupt the audible content, the user may elect to view athletic information visually on a display. | 11-03-2011 |
20110274293 | METHOD, DEVICE AND COMMUNICATION TERMINAL FOR ADJUSTING VOLUME ADAPTIVELY - The present invention relates to the field of communications technology, and more particularly, to a method, a device and a communication terminal for adjusting volume adaptively. The present invention discloses a method for adjusting volume adaptively, including: receiving an audio signal from a sound source; obtaining information about the sound source corresponding to the audio signal and input and output gain parameters corresponding to the information about the sound source; and adjusting input volume and output volume according to the input and output gain parameters. The present invention also discloses an adaptive volume adjusting device, comprising a receiving unit, an obtaining unit and an adjusting unit. In addition, the present invention discloses a communication terminal comprising the preceding device. The advantage of the present invention is to automatically adjust input volume and output volume so that the users can hear an ideal voice. | 11-10-2011 |
20110293113 | APPARATUS, SYSTEMS AND METHODS FOR LIMITING OUTPUT VOLUME OF A MEDIA PRESENTATION DEVICE - Volume limiting systems and methods are operable to limit volume output from media presentation devices. An exemplary embodiment detects a sound using a microphone, wherein the sound corresponds to an audio output of at least one controlled media presentation device, and wherein the microphone is remotely located from the at least one controlled media presentation device; compares a level of the detected sound with a predefined maximum volume limit; generates a volume output limit command in response to the detected sound exceeding the predefined maximum volume limit; and communicates the volume output limit command to the media presentation device. The media presentation device then reduces a volume level of its audio output. In some instances, volume may be limited during user specified periods. | 12-01-2011 |
20110299705 | AUDIO SIGNAL ADJUSTING SYSTEM AND METHOD - An audio signal adjusting method is disclosed, which comprises steps of: determining an environment noise level; calculating a ratio between an environment noise level and an output audio signal level to form a measuring value; comparing the measuring value with a predetermined threshold as an audio comfort value; and determining whether or not to adjust an audio signal parameter according to the comparison result. If the comparison result is incorrect, then the audio signal parameter is adjusted, and the output audio signal should be outputted according to the adjusted audio signal parameter. The audio signal adjusting method can satisfy the different user needs on different environment types. | 12-08-2011 |
20110317854 | Speaker voume control with inidividual input and output impedance converters - A passive circuit that provides a variable means of controlling the audio speaker's volume level from a music instrument tube amplifier, without reducing the reactance of the audio speaker, allowing the audio speaker to reproduce sound in a natural way. The invention utilizes a multiple tapped input and a multiple tapped output transformers, along with a multiple tapped series resistive network, providing volume level control without reducing the audio speaker's reactance with a parallel resistive load. The input transformer with multiple taps, provides a variable means to impedance match the circuit to a plurality of impedance values available in common music instrument tube amplifiers. The separate output transformer with multiple taps, provides a variable means to impedance match the circuit to a plurality of impedance values available in common audio speakers. By utilizing the individual multiple tapped input and output transformers, the invention provides a means of converting the output impedance of the music instrument tube amplifier and separately converting an audio speaker with a dissimilar impedance value, to match the impedance requirements of the volume control circuit. | 12-29-2011 |
20120008801 | "POSSE" -- an acronym for "Personal OnStage Sound Enhancer" - A stage monitoring system is described and claimed that provides musical performers the ability to carefully control the local sounds they are hearing during a performance independently of the house sound system and independently of the other musicians on stage. A complete and unique system constituting an improved method of monitoring oneself during an aural performance, by way of a discreet mixer that sums the collective audio signals coming from a vocal microphone, a mono or stereo instrument input, stereo ambient microphones and signals from two auxiliary inputs. The unit sends the audio signal from the ‘Instrument In’ and the ‘Vocal In’ to an audio recording console or live performance mixing console. | 01-12-2012 |
20120008802 | VOICE DETECTION FOR AUTOMATIC VOLUME CONTROLS AND VOICE SENSORS - A voice detection system and method for automatic volume controls and voice sensors is disclosed. More specifically, the invention addresses a situation where the user's own voice undesirably affects the functionality of an automatic volume control for a two-way communication device, such as a cellular telephone. In addition, the invention proposes solutions wherein one (voice) microphone is employed and also, when two (voice and noise) microphones are employed. Further, an algorithm is disclosed that addresses the issue concerning the user's own voice in an AVC pertaining to the two microphone solution. Yet further, a method herein is disclosed that detects the presence of voice in a single non-selective (noise) microphone. | 01-12-2012 |
20120014537 | System and Method for Automatic Microphone Volume Setting - Optimal microphone volumes are automatically set for computer applications based on determination of peak volume levels and noise levels from one or more digital audio captures. The peak volume levels and noise levels can be advantageously determined based on distribution curves of sample volume levels in the digital audio captures. Clipping can be automatically compensated for by estimating peak unclipped capture volume levels from the distribution curves. | 01-19-2012 |
20120014538 | AUDIO EQUIPMENT AND A CONTROL METHOD THEREOF - Method of controlling the volume level of a system that consisting of an audio equipment ( | 01-19-2012 |
20120014539 | SIGNAL PROCESSING APPARATUS, SEMICONDUCTOR CHIP, SIGNAL PROCESSING SYSTEM, AND METHOD OF PROCESSING SIGNAL - In a signal processing apparatus, a high frequency level detecting unit detects a level of a high frequency component adjusted with a first adjusting unit, and a first control unit controls a first gain of the adjusting unit according to the level of the high frequency component thus detected. Further, a low frequency level detecting unit detects a level of a low frequency component adjusted with a second adjusting unit. A second control unit controls a second gain according to the level of the high frequency component and the level of the low frequency component thus adjusted, so that a difference between the level of the high frequency component adjusted with the first adjusting unit and the level of the low frequency component adjusted with the second adjusting unit becomes smaller than a specific level determined in advance. | 01-19-2012 |
20120014540 | METHOD AND APPARATUS FOR AUDIO NORMALIZATION - A request is received to play an audio file. A determination is made regarding whether volume normalization parameters associated with the audio file are stored in a media library. If the volume normalization parameters associated with the audio file are stored in the media library, the volume normalization parameters are retrieved from the media library. If the volume normalization parameters associated with the audio file are not stored in the media library, retrieving the volume normalization parameters from the audio file. The volume normalization parameters are applied while playing the audio file. The volume normalization process can be applied across multiple audio files during playback. | 01-19-2012 |
20120027227 | PERSONALIZED ADJUSTMENT OF AN AUDIO DEVICE - Described herein are apparatuses, systems and methods that facilitate user adjustment of an audio effect of an audio device to match the hearing sensitivity of the user. The user can tune the audio device with a minimum perceptible level unique to the user. The audio device can adjust the audio effect in accordance with the minimum perceptible level. For example, a loudness level can adjust automatically to ensure that the user maintains a perceptible loudness, adjusting according to environmental noise and according to the minimum perceptible level. Also described herein are apparatuses, systems and methods related to an audio device equipped with embedded audio sensors that can maximize a voice quality while minimizing the effects of noise. | 02-02-2012 |
20120039489 | VOLUME CONTROL METHOD AND ELECTRONIC DEVICE CAPABLE OF AUTOMATIC VOLUME ADJUSTMENT - A volume control method is to be performed by an electronic device for adjusting intensity of an output audio signal outputted from the electronic device according to an external audio signal of an environment in which the electronic device is located. The volume control method includes: configuring the electronic device to receive the external audio signal; configuring the electronic device to compare a sound track of the external audio signal with a preset sound track and to make a determination as to whether a degree of similarity between the two sound tracks reaches a preset ratio; and configuring the electronic device to stop outputting the output audio signal when a result of the determination is affirmative. | 02-16-2012 |
20120039490 | Controlling the Loudness of an Audio Signal in Response to Spectral Localization - The invention relates to modifying the loudness of an audio signal by measuring the weighted broadband level of the audio signal and modifying that weighted broadband level as a function of a spectral localization estimate of the audio signal. | 02-16-2012 |
20120057726 | Sound volume limiter using continuous evaluation of the incurred sound exposure dose to prevent hearing damage without degrading the user experience - A system and method is described for automatically limiting the sound exposure incurred by users of sound reproducing devices, by continuously tracking and evaluating the cumulative sound exposure dose. Instead of limiting the average sound level to a fixed maximum, the user retains freedom to adjust the sound volume to higher or lower levels. However, if the system determines that the overall cumulative sound dose is approaching a certain pre-set value presumed to be potentially hazardous, the gain and compression settings of the sound reproducing device are modified in order to limit sound exposure. This is done in such a way that the interference with the user experience is minimized. Optionally, the user is also provided with controls to temporarily boost the sound level, which then gradually falls back to a level that is acceptable for prolonged exposure. The sound limiting system starts acting more quickly and aggressively as the tracked sound exposure dose becomes higher. | 03-08-2012 |
20120087516 | SYSTEM AND METHODS FOR DYNAMICALLY CONTROLLING ATLEAST A MEDIA CONTENT WITH CHANGES IN AMBIENT NOISE - Disclosed are methods and system method for dynamically maintaining at least an output volume of a media system at a predefined volume level in response to at least a change in an instantaneous ambient noise level. The method comprises the steps of: establishing the predefined volume level of the media system; measuring at least the change in the instantaneous ambient noise level; and adjusting dynamically the output volume of the media system against at least the change in the instantaneous ambient noise level to maintain the predefined volume level for a constant media experience. | 04-12-2012 |
20120093342 | MICROPHONE LINK SYSTEM - A microphone link system comprises a microphone that coverts an acoustic sound signal into an electrical sound signal, a slave unit that receives the electrical sound signal, a master unit, and a bus connecting the slave unit to the master unit. The slave unit comprises an analog-to-digital converter that converts the electrical sound signal into a digital sound signal; a signal processor that receives and processes the digital sound signal into a data signal; and a bus interface connected between the signal processor and the bus. The bus interface provides to the slave unit electrical power taken from the bus, sends the data signal to the master unit via the bus and receives from and sends to the master unit control signals via the bus. | 04-19-2012 |
20120106759 | SPEAKER SYSTEM AND METHOD FOR OPTIMIZING OUTPUT OF SPEAKER THEREOF - A speaker system and a method for optimizing an output of a speaker thereof are provided. The speaker system includes a speaker, an automatic gain control amplifier, a volume adjustment unit, a controller, and an indication unit. The function of the automatic gain control amplifier may be intelligently optimized by the controller, so that the controller may remind the user that the automatic gain control amplifier is operated in a reduced dynamic range through the indication unit in case that the volume adjustment unit receives an input sound frequency signal of a very high intensity. With the help of the indication unit, the user may easily find an optimal operation spot of the automatic gain control amplifier, and the speaker system may generate enough sound with a good dynamic range. | 05-03-2012 |
20120114144 | SOUND CONTROL DEVICE, COMPUTER-READABLE RECORDING MEDIUM, AND SOUND CONTROL METHOD - Sound is outputted, without giving the sense of incongruity to the user, even if reproduction of animation is stopped by the user. An animation acquiring section | 05-10-2012 |
20120128179 | Audio Device - An audio device (e.g. an AV amplifier), with a plurality of audio output terminals according to the HDMI standard, converts audio data of a source device into audio signals suited to audio reproduction abilities (e.g. channel counts) of sink devices. The audio device stores a plurality of audio reproduction ability information describing the predetermined channel count thereof and the channel counts of sink devices, wherein arbitrary audio reproduction ability information precluding audio reproduction ability information of a sink device with the smallest channel count is provided to a source device. The audio device performs down-mixing on audio signals with respect to a sink device whose channel count is smaller than the predetermined channel count, whilst the audio device performs signal processing on audio signals with respect to a sink device whose channel count is larger than the predetermined channel count. | 05-24-2012 |
20120134511 | MULTICHANNEL AUDIO CODER AND DECODER - An apparatus configured to: determine at least one time delay between a first signal and a second signal; generate a third signal from the second signal dependent on the at least one time delay; and combine the first and third signal to generate a fourth signal; divide the first and second signals into a plurality of time frames; determine for each time frame a first delay associated with a start of the time frame of the first signal and a second time delay associated with an end of the time frame of the first signal; select from the second signal at least one sample in a block defined as starting at the combination of the start of the time frame and the first time delay and finishing at the combination of the end of the time frame and the second time delay; and stretch the selected at least one sample to equal the number of samples of the first frame. | 05-31-2012 |
20120140954 | ADJUSTING ACOUSTIC SPEAKER OUTPUT BASED ON AN ESTIMATED DEGREE OF SEAL OF AN EAR ABOUT A SPEAKER PORT - A degree of seal of an ear about a speaker port may be estimated by detecting touch contact between the ear and at least one touch sensor in fixed relation to the speaker port. The degree of seal is estimated based on the detected touch contact. Based upon the estimated degree of seal, the acoustic output of the speaker may be adjusted. The adjustment may compensate for perceived changes to the quality of the acoustic output resulting from the degree of seal. The at least one touch sensor may be a plurality of touch sensors spaced around the speaker port. Each sensor may have a truncated wedge shape, with a narrow end closest to the speaker port. Upon receipt of user input indicative of a high degree of ear seal, a sample of the sensor(s) may be taken and stored for using during future estimation of the degree of seal. | 06-07-2012 |
20120155674 | SOUND PROCESSING APPARATUS AND RECORDING MEDIUM STORING A SOUND PROCESSING PROGRAM - A sound processing apparatus includes a first calculator that calculates first power based on a first signal received by a first microphone that is among the first microphone and a second microphone; a second calculator that calculates second power based on a second signal received by the second microphone; a gain calculator that calculates a gain on the basis of the ratio of the first power to the second power; and a multiplier that processes the second signal using the gain calculated by the gain calculator. | 06-21-2012 |
20120163630 | AUDIO PROCESSING APPARATUS, AUDIO PROCESSING SYSTEM, AUDIO PROCESSING METHOD - An audio processing apparatus includes a first capture module, a limitation module, a second capture module, and a release module. The first capture module is configured to capture an external input. The limitation module is configured to transmit a sound volume limitation command to at least one external device including an audio output function when the first capture module captures the external input. The second capture module is configured to capture a sound input after the first capture module captured the external input. The release module is configured to transmit, after the second capture module captured the sound input, a release command for the sound volume limitation on the one or more external devices limited by the limitation module at a timing that differs according to the sound input captured by the second capture module. | 06-28-2012 |
20120163631 | AUTOMATIC AUDIO SIGNAL LEVEL ADJUSTMENT CIRCUIT - An automatic audio signal level adjustment circuit is capable of automatically adjusting a level of an input audio signal within a specific range. The automatic audio signal level adjustment circuit includes an amplitude adjustment determining unit and an amplitude adjusting unit. The amplitude adjustment determining unit is configured to generate an amplitude reduction instruction when the level is greater than a first reference value, and an amplitude augmentation instruction when the level is small than a second reference value. The amplitude adjusting unit is configured to output an output audio signal having an amplitude reduced from that of the input audio signal upon the amplitude reduction instruction, and an output audio signal having an amplitude augmented from that of the input audio signal upon the amplitude augmentation instruction. Further, the amplitude adjusting unit is configured to output an output audio signal equal to the input audio signal upon no instruction. | 06-28-2012 |
20120163632 | CHARGE PUMP CIRCUIT - A bipolar output charge pump circuit | 06-28-2012 |
20120170770 | CHARGE PUMP CIRCUIT - A bipolar output charge pump circuit having a network of switching paths | 07-05-2012 |
20120170771 | Method Of Leveling A Plurality Of Audio Signals - A system with an input amplifier to receive and amplify a first audio signal, an output amplifier to output an audio signal which includes at least one of the amplified first audio signal and a second audio signal, a controller to adjust the input amplifier to a first input amp gain and the output amplifier to a first output amp gain to provide an output signal including the first audio signal at a first output signal level. The controller is to adjust the output amplifier to a second output amp gain to provide an audio output including the second audio signal at a second output signal level and determine an output amp ratio by dividing the first output amp gain with the second output amp gain. The controller is to determine a target input amp gain by multiplying the first input amp gain by the output amp ratio and adjust the first input amp gain to the target input amp gain to provide an audio output including the first audio signal at a third output signal level. | 07-05-2012 |
20120170772 | METHOD AND APPARATUS FOR DYNAMICALLY ADJUSTING VOLUME - A method for dynamically adjusting volume is disclosed, which includes: determining dynamic adjustment step size I of output volume according to the preset time interval T of fading volume, the preset frequency F of fading volume, and the difference between the preset output volume V | 07-05-2012 |
20120177225 | Smart Un-muting Based on System Event with Smooth Volume Control - An approach is provided that receives an audio request from a request source while an information handling machine, such as a computer system, is in a muted state. The request source is compared with a list of one or more un-mute sources stored in a memory. If the comparison reveals that the request source is included in the list of un-mute sources, then the audio request is audibly played. | 07-12-2012 |
20120177226 | BATTERY POWER MONITORING AND AUDIO SIGNAL ATTENUATION - To reduce the risk of brown outs and resets in a mobile station using a far-field speaker, a voltage level of a battery and a level of an input audio signal are monitored. When the level of the audio signal increases past a threshold level, and the voltage level of the battery falls below a threshold voltage, an attenuation is determined and applied to the audio signal. The applied attenuation reduces the volume of the audio signal, which reduces the risk of a brown out or a reset due to insufficient voltage in the mobile station. | 07-12-2012 |
20120177227 | SOUND VOLUME CONTROL CIRCUIT - A sound volume control circuit includes: a first operational amplifier; a variable resistor circuit connected between an output and an inverting input of the first operational amplifier and having a plurality of resistance values; an R-2R ladder circuit connected between a voltage source of an input voltage; and a control circuit controlling the variable resistor circuit and the R-2R ladder circuit; wherein when changing a resistance value of the variable resistor circuit from a first resistance value to a second resistance value, so as to change the output voltage in a step size where a difference between the output voltage corresponding to the first resistance value and the output voltage corresponding to the second resistance value is further segmented, the control circuit changes the magnitude of the electric current flowing to the variable resistor circuit by use of the R-2R ladder circuit. | 07-12-2012 |
20120177228 | PROCESS FOR ADJUSTING THE SOUND VOLUME OF A DIGITAL SOUND RECORDING - The present invention relates to a process for adjusting the sound volume of a digital sound recording characterised in that it comprises: a step consisting of determining, in absolute values, for a recording, the maximum amplitude values for sound frequencies audible for the human ear, a step consisting of calculating the possible gain for a specified sound level setting, between the maximum amplitude value determined above and the maximum amplitude value for all frequencies combined, a step consisting of reproducing the recording with a sound card by automatically adjusting the amplification gain level making it possible to obtain a sound level for the recording of a specified value so that it corresponds to the gain calculated for this recording. | 07-12-2012 |
20120189139 | Semiconductor Integrated Circuit Having a Switched Charge Pump Unit and Operating Method Thereof - Power source noises of a digital amplifier arising from regenerative current of an inductor of a low pass filter is reduced. A semiconductor integrated circuit includes: a digital amplifier, a driver; and a charge pump unit which is supplied with a positive operating voltage and generates a positive power supply voltage and a negative power supply voltage. An output terminal of the digital amplifier is coupled to a low pass filter including an inductor and a filter capacitor. The charge pump unit includes a first switch through a sixth switch, and a first capacitor through a fourth capacitor, all connected via a first node through a sixth node. Regenerative current which flows between the filter capacitor and the positive power supply voltage or the negative power supply voltage is absorbed by the second capacitor, by controlling the sixth switch to an on state. | 07-26-2012 |
20120195443 | METHOD AND APPARATUS FOR OUTPUTTING AUDIO SIGNAL - An audio signal output apparatus including an audio signal input unit which receives an audio signal; a digital signal processor (DSP) which estimates an output power corresponding to the received audio signal, and adjusts at least one of a gain value to be applied to the received audio signal and the output power of the received audio signal according to a period for which the estimated output power exceeds a rated maximum output power and a difference between the estimated output power and the rated maximum output power; and an audio signal output unit which generates, amplifies, and outputs a pulse width modulation (PWM) signal corresponding to the received audio signal. | 08-02-2012 |
20120195444 | ELECTRONIC DEVICE AND METHOD OF DYNAMICALLY CORRECTING AUDIO OUTPUT OF AUDIO DEVICES - An electronic device and method of dynamically correcting audio output of audio devices creates a coordinate system in relation to cameras and audio devices, and obtains coordinates of each camera and each audio device. The cameras detects a user. A distance between the user and each audio devices is computed. One audio device is considered as a first audio device. A ratio of audio intensities and a difference of audio transmitting time between the first audio device and each of the other audio devices are computed. Delaying the audio output starting time of each of the other audio devices according to the differences and adjust the audio intensity of each of the other audio devices according to the ratios. | 08-02-2012 |
20120201400 | AUDIO MIXING CONSOLE - An audio mixing console comprises a first amplifier, an analogue to digital converter, a second amplifier and a gain range control unit. The first amplifier may receive an analogue audio input signal and amplify the received audio input signal with a first adjustable gain. The analogue to digital converter may receive the amplified analogue audio input signal and generate a digital audio signal by an analogue to digital conversion of the analogue audio signal. The second amplifier may receive the digital audio signal and amplify the received digital audio signal with a second adjustable gain. The gain range control unit may identify a signal level overload at the analogue to digital converter and control the gain of the first and second amplifiers, respectively. | 08-09-2012 |
20120224720 | SOUND VOLUME CONTROL DEVICE, SOUND VOLUME CONTROL METHOD, AND SOUND VOLUME CONTROL PROGRAM - A sound volume control device includes a sound input section, a band dividing section, an excessive output notification section, a correction band decision section and a sound output control section. The sound input section converts input sound into a sound signal. The band dividing section carries out band-division with respect to the sound signal. The excessive output notification section outputs excessive output notification information when output sound from the present device is excessive. The correction band decision section calculates audible signal distribution information when the excessive output notification information is not output and excessive signal distribution information when the excessive output notification information is output, for each band in the sound signal, and decides a correction band according to the audible signal distribution information and excessive signal distribution information. The sound output control section controls sound volume of sound signal for the correction band to provide output sound. | 09-06-2012 |
20120224721 | Multiband Audio Dynamics Processor - An audio system includes a level controller receiving an input audio signal from an audio medium. The level controller includes a gain adjust module producing an output audio signal based on the input audio signal. A filter arrangement is communicatively coupled to the level controller. The filter arrangement receives the output audio signal and divides the output signal into a plurality of filtered signals. Each of the filtered signals corresponds to a respective frequency band. A multiband dynamics controller is communicatively coupled to the filter arrangement. The multiband dynamics controller receives the filtered signals and applies a respective gain characteristic to each of the filtered signals to thereby produce a plurality of gain adjust signals. The gain adjust signals are combined into a multiband dynamics controller output signal. | 09-06-2012 |
20120230516 | USER PROFILE BASED AUDIO ADJUSTMENT TECHNIQUES - Embodiments are directed toward user profile based audio adjustment techniques. The techniques are used to render various audio and/or audio/video content having different audio output parameter values in accordance with a user profile that characterizes a user's desired value and/or range of one or more of the output parameter levels. | 09-13-2012 |
20120250889 | AUTOMATIC VOLUME REDUCTION - Systems and methods of controlling output volume in mobile devices may include an apparatus having logic to detect a limited power delivery condition of a battery of a mobile platform. The logic may also transmit a hardware alert to an audio controller of the mobile platform in response to the limited power delivery condition, wherein the hardware alert is to instruct the audio controller to conduct a speaker volume reduction to an audible level. In one example, the logic enables the use of one or more high power speakers such as stereo integrated hands free speakers in the mobile device. | 10-04-2012 |
20120250890 | AUDIO DEVICE AND METHOD FOR AUDIO OUTPUTTING - An audio device includes a headphone jack to receive a headphone plug, an audio output unit connected to the headphone jack, a detecting unit, and a control unit. The detecting unit detects insertion or removal of a headphone plug from the headphone jack. The control unit decreases an output power of the audio output unit to a preset value within a preset period in response to the detected insertion or removal of the headphone plug, and recovers the output power of the output unit to an original value after the preset period is elapsed. A related method is also provided. | 10-04-2012 |
20120250891 | PERSONAL LISTENING DEVICE WITH SELF-ADJUSTING SOUND VOLUME - An exemplary personal listening device includes thermo-sensitive elements in its transducers. Each thermo-sensitive element senses temperature change of a corresponding transducer and changes a current flowing through the transducer according to temperature change of the transducer, to reflect the amount of time for which the personal listening device has been working. | 10-04-2012 |
20120250892 | SIGNAL PROCESSOR AND SIGNAL PROCESSING METHOD - According to one embodiment, a signal processor includes a band divider, a first correction module, a determiner, an adjuster, and a second correction module. The band divider calculates an amplitude indicating sound pressure from an acoustic signal for each frequency range. The first correction module corrects the amplitude to change the dynamic range of the amplitude to a target range. The determiner determines whether the maximum amplitude of amplitudes corrected by the first correction module is equal to or larger than a threshold. The adjuster adjusts first and second coefficients based on the first condition if the maximum amplitude is equal to or larger than the threshold. The second correction module adds a value obtained by multiplying the acoustic signal by the first coefficient to a value obtained by multiplying the correction amount of the amplitude by the second coefficient, and outputs a resulting value as an output signal. | 10-04-2012 |
20120250893 | HYBRID PERMANENT/REVERSIBLE DYNAMIC RANGE CONTROL SYSTEM - A system for controlling dynamic range of an audio signal comprises an automatic gain control element that receives an input signal having a varying level and outputs a control signal that varies based on the varying level of the input signal and a modified input signal having a dynamic range different than a dynamic range of the input signal. The system also comprises an inverter that inverts the control signal or a block-based control signal corresponding to the control signal in block format. The system also comprises a variable gain element that receives the modified input signal and at least some of the inverted control signal or block-based control signal. The variable gain element also outputs a remainder signal corresponding to the modified input signal as unmodified based on the at least some of the inverted control signal or block-based control signal. | 10-04-2012 |
20120250894 | APPARATUS INCLUDING MEANS FOR CONNECTING TO ONE OR MORE OUTER SPEAKERS AS WELL AS MEANS FOR DETECTING SUCH A CONNECTION - An audio appliance includes two external connections for connection to external loudspeakers, and includes means for establishing an electrical signal between the external terminals that is representative of an audio source in order to inject an excitation electric current into each external loudspeaker. Means are provided for incorporating a component at a “detection” frequency that is situated outside the audible spectrum in the electrical signal that is established between the external terminals, together with means for detecting an electric current flowing between the external terminals and having a frequency corresponding to the detection frequency. This is applicable in particular to systems comprising a mobile appliance and a fixed docking station incorporating a woofer and designed to receive the mobile appliance. | 10-04-2012 |
20120250895 | SYSTEM FOR ADJUSTING PERCEIVED LOUDNESS OF AUDIO SIGNALS - A method of adjusting a loudness of an audio signal may include receiving an electronic audio signal and using one or more processors to process at least one channel of the audio signal to determine a loudness of a portion of the audio signal. This processing may include processing the channel with a plurality of approximation filters that can approximate a plurality of auditory filters that further approximate a human hearing system. In addition, the method may include computing at least one gain based at least in part on the determined loudness to cause a loudness of the audio signal to remain substantially constant for a period of time. Moreover, the method may include applying the gain to the electronic audio signal. | 10-04-2012 |
20120257770 | METHOD AND APPARATUS TO SUPPLY POWER VOLTAGE TO A MOBILE DEVICE IN A VARIABLE MANNER - A method and apparatus to supply a power voltage to a mobile device in a variable manner in order to provide high output power and a high quality sound environment and a mobile device using the same. The apparatus includes a volume control unit to detect installation of an external power supply and to generate a voltage control value corresponding to a current volume level, and a DC-DC converter unit to convert a voltage of an internal power supply in a variable manner on the basis of the voltage control value generated in the volume control unit in order to drive the switching power amplifier. | 10-11-2012 |
20120263318 | SMART LINE-IN PROCESSING - Technology for smart line-in processing in an audio environment is disclosed. Particularly, the embodiments described herein provide automated source switching in an audio environment where a number of audio sources may exist and volume control. | 10-18-2012 |
20120263319 | AUDIO CONTROL OF MULTIMEDIA OBJECTS - In some examples, aspects of the present disclosure may include techniques for audio control of one or more multimedia objects. In one example, a method includes receiving an electronic document that includes a group of one or more multimedia objects capable of generating audio data. The method also includes registering a multimedia object of the group of one or more multimedia objects, wherein registering the multimedia object comprises storing a multimedia object identifier that identifies the multimedia object. The method further includes receiving audio data; and determining, by a computing device, a volume level of the audio data generated by the registered multimedia object based on one or more configuration parameters, wherein the one or more configuration parameters define one or more volume levels associated with the multimedia object identifier. The method also includes outputting, to an output device, the audio data at the determined volume level. | 10-18-2012 |
20120263320 | Gain Control Device for an Amplifier and Related Methods, and an Audio Processing Device - A gain control device for an amplifier and related methods, and an audio processing device are described herein. In one aspect, a gain control device for an amplifier includes: a receiver module configured to receive a control signal; a gain control module configured to control the gain of said amplifier based on said control signal. In another aspect, an audio processing device includes: a microphone; an audio player; and an amplifier, wherein said amplifier includes a gain control device configured to receive a control signal and to control the gain of said amplifier based on the received control signal. In another aspect, a method for controlling the gain of an amplifier includes: receiving a control signal; controlling the gain of said amplifier based on said control signal. The described methods and device reduce the application cost and size. | 10-18-2012 |
20120263321 | Method and System for Audio Level Detection and Control - In a method and system for audio level detection and control, an amplitude of an audio signal may be compared to a threshold and an attenuation applied to the audio signal may be adjusted based on the comparison. In instances that the amplitude of the audio signal is greater than or equal to the threshold the adjustment may comprise increasing a first attenuation factor until the amplitude of the audio signal is less than the threshold. The first attenuation factor may be subsequently decreased until the amplitude of the audio signal is greater than or equal to the threshold or until the first attenuation factor is equal to zero. The attenuation of the audio signal may be controlled via a digital gain circuit within the hardware audio CODEC, wherein an overall attenuation factor of the digital gain circuit is a sum of the first attenuation factor and a second attenuation factor. | 10-18-2012 |
20120269363 | TEMPERATURE COMPENSATED MICROPHONE - A method and a device for eliminating or minimizing the sensitivity changes in a microphone due to temperature changes. The temperature-induced changes in the sensitivity can be caused by the changes in the sound-to-electrical signal transducer, in the microphone membrane, in the ASIC or other reasons. One or more temperature dependent components in the microphone or in a microphone module are used to offset the temperature-induced changes in the sensitivity. Sensitivity of a microphone is defined as the output voltage for a specific acoustic stimulus and load condition. | 10-25-2012 |
20120275624 | ENERGY-SAVING AUDIO-AMPLIFIER CONTROL DEVICE - An energy-saving audio-amplifier control device is electrically connected to an amplifier for sensing an audio signal input state at a sound-source input end of the amplifier and controlling the on/off of the amplifier accordingly. The control device includes a signal detection module, a control module and a power control module. The signal detection module detects the state at the sound-source input end and generates a first signal to the control module. Based on the first signal, the control module controls the power control module to control the on/off of the amplifier. With these arrangements, it is able to automatically control the amplifier to off when the audio signal input to the amplifier is ended, and accordingly, achieve the purpose of saving energy, reducing power consumption, and minimizing loss of components. | 11-01-2012 |
20120275625 | SIGNAL PROCESSING DEVICE, METHOD THEREOF, PROGRAM, AND DATA RECORDING MEDIUM - Provided is a signal processing device including an analysis unit for analyzing a characteristic of an input signal, and generating an analysis feature, a mapping control information determination unit for determining, based on the analysis feature and information that is generated by learning and that is for obtaining mapping control information from the analysis feature, the mapping control information, and a mapping processing unit for performing amplitude conversion on the input signal based on a linear or non-linear mapping function decided based on the mapping control information, and generating an output signal. | 11-01-2012 |
20120281860 | ALL IN ONE COMPUTER - An all in one (AIO) computer implemented as a personal computer (PC) or a display includes a high definition multimedia interface, a speaker, and a speaker control circuit. The speaker control circuit includes an earphone interface circuit, a main controller, a signal processing unit, and a signal control circuit. The earphone interface circuit detects whether an earphone is inserted into the AIO computer. When the earphone interface circuit detects the earphone is connected to the AIO computer, if the AIO computer is implemented as the PC, the main controller sends a first muting signal. If the AIO computer is implemented as the display, the main controller sends a second muting signal, and the signal control circuit controls and mutes the speaker according to the first muting signal and the second muting signal. | 11-08-2012 |
20120288120 | POWER SUPPLY WITH RECTIFIER PROTECTION - An apparatus for driving speakers includes user-configurable amplifier cells for driving selected speakers, a synchronous rectifier circuit, and a control system. Each cell connects between power rails. The rectifier circuit provides current on the rails for consumption by the cells. The current depends on the configuration. The control system implements a model of the rectifier circuit and cells and uses it to control an audio input signal in response to information concerning electrical outputs of the amplifier cells. This indirectly limits current drawn from the synchronous rectifier circuit. | 11-15-2012 |
20120288121 | ACOUSTIC CONTROL DEVICE - A DSP performs a sound volume adjustment processing that adjusts a playback sound volume in accordance with a signal level of acoustic data in acoustic contents. Further, when the DSP detects that the acoustic data is switched, the DSP initializes the adjustment to perform a reset processing that performs adjustment in accordance with the acoustic data which is a new playback target. When the changing instruction of the playback position of the acoustic data is accepted, an audio microcomputer instructs the DSP to perform the reset processing. | 11-15-2012 |
20120288122 | METHOD AND A SYSTEM FOR AN ACOUSTIC CURTAIN THAT REVEALS AND CLOSES A SOUND SCENE - A system and a method of operating the system which has at least two groups of sound providers, where the virtual position of the second group of sound providers is moved from the position of the first group of speakers to that of the second group of speakers. Also a third group of speakers may be used, the position of which is virtually moved from that of the first group via the position of the second group to that of the third group of speakers. | 11-15-2012 |
20120294461 | SOUND EQUIPMENT, VOLUME CORRECTING APPARATUS, AND VOLUME CORRECTING METHOD - Sound equipment is configured to average an average value of a signal level at each predetermined frequency band of a sound signal at a different averaging time, to weight the average value calculated at a different averaging time by using an individual weighting value, to obtain a representative value based on a weighted average value, to determine a gain of a sound signal based on an obtained representative value, to correct a volume based on the corresponding gain, and to correct a volume based on the gain. The representative value is obtained by selecting the average value at which a gain becomes minimum within each weighted average value. The averaging performs at least a first averaging using the averaging time corresponding to the sound signal that the signal level changes rapidly, and a second averaging using the averaging time longer than the averaging time of the first averaging. | 11-22-2012 |
20120314886 | MODIFICATIONS OF AUDIO COMMUNICATIONS IN AN ONLINE ENVIRONMENT - A system and method to modify audio communications in an online environment and, in particular, to modifying audio communications using one or more parameters. The system includes a module configured to detect one or more parameters applicable to an incoming audio communication and a weighing engine configured to weigh the one or more parameters and obtain a weighted volume. The system further includes a module configured to transmit the weighted volume to a user participating in a virtual universe. The method determines whether one or more parameters apply to an incoming communication, weighs the incoming communication based on the one or more parameters to determine a weighted volume of the incoming communication, and transmits the incoming communication to a user at the weighted volume. | 12-13-2012 |
20120321104 | Automatic gain control of amplifier by dynamic suppressing and output control at multiple stages - A method and apparatus for automatic gain control of an amplifier in which the method and apparatus detects excessive increase in the sound volume or temperature rise in the audio system and reduces the gain of the amplifier by various means. Each gain control circuit has a comparator to compare a signal with threshold values and an integrator to integrate output signals of the comparator with respect to a predetermined time length to reduce a gain of the amplifier. The method and apparatus conducts dynamic suppressing of excess signals and thereby controlling output level of the amplifier at multiple stages without immediately shutting down the audio system. In the case where the sound volume increases to a degree that may damage the amplifier or speaker, a shutdown signal is generated to shutdown the operation of the whole system. | 12-20-2012 |
20120328125 | AUDIO CONTROLLING APPARATUS, AUDIO CORRECTION APPARATUS, AND AUDIO CORRECTION METHOD - According to one embodiment, an audio controlling apparatus includes a first receiver configured to receive audio signal, a second receiver configured to receive environmental sound, a temporary gain calculator configured to calculate temporary gain based on environmental sound received by second receiver, a sound type determination module configured to determine sound type of main component of audio signal received by first receiver, and a gain controller configured to stabilize temporary gain that is calculated by temporary gain calculator and set gain, when it is determined that sound type of main component of audio signal received by first receiver is music. | 12-27-2012 |
20120328126 | AUDIO SIGNAL PROCESSING CIRCUIT - A selector selects an analog audio signal input to one input port from among analog audio signals input to multiple input ports according to an instruction from the user. An analog gain control circuit amplifies the analog audio signal received from the selector, with a corresponding one of the gains set for the respective input ports. An analog gain control circuit is configured to gradually change its gain when the gain is switched. An A/D converter converts an output signal of the analog gain control circuit into a digital audio signal. A first audio signal processing circuit is monolithically integrated on a signal semiconductor substrate. | 12-27-2012 |
20120328127 | VOLUME AMPLITUDE LIMITING DEVICE - A volume amplitude limiting device includes a volume adjustment unit, an amplitude limiting unit, and a control unit. The volume adjustment unit adjusts the amplitude of an input sound signal to a larger degree as the adjustment value increases and outputs the resulting sound signal. The amplitude limiting unit limits the amplitude of the sound signal output from the volume adjustment unit to an output limitation value and outputs the resulting signal to a speaker. The control unit sets an adjustment value for the volume adjustment unit and also sets an output limitation value for the amplitude limiting unit according to an adjustment value. | 12-27-2012 |
20130003990 | ELECTRONIC DEVICE AND AUDIO OUTPUT CONTROL METHOD THEREOF - An audio output port, an impedance value detecting unit, a DAC, an audio gain module, and a processing unit are included within an electronic device. The impedance value detecting unit detects the impedance value of an audio output apparatus. The storage unit stores an audio output mode table. The processing unit determines the range of impedance values that the detected impedance value falls within, and determines the corresponding audio output mode, the processing unit operates in the audio output mode which is required. The audio gain module magnifies the analog signals with a gain value corresponding to the audio output mode required, and transmits the magnified analog signals to the audio output port. An audio output control method is also provided. | 01-03-2013 |
20130003991 | SYSTEM AND METHOD FOR ADJUSTING AN AUDIO SIGNAL - Disclosed is a system and method of adjusting a volume level for an audio signal for a communication device to comply with a quality threshold. The method comprises: monitoring for an increase in the volume level; and upon determining that implementing the increase in the volume level would produce an output that would exceed the audio frequency pass mask, processing a digitized signal value of the audio signal to produce a first output signal value for the audio signal implementing the increase in the volume level utilizing a digital signal processing (DSP) device in the communication device, a processing filter defined in the digital signal processing device, a first set of adjustment parameters and the digitized signal value. | 01-03-2013 |
20130010984 | Method for controlling entertainment equipment based on performer position - A method and system for automatically and reliably controlling equipment for outputting sound and, potentially, lighting, pyrotechnics and other effects in live entertainment productions based upon the real-time physical location of one or more specific performers within a performance area in either an absolute sense or relative to a controlled article of equipment. The system includes a radio frequency identification subsystem and an equipment control subsystem. | 01-10-2013 |
20130028443 | DEVICES WITH ENHANCED AUDIO - A system for enhancing audio including a computer and an output device. The computer includes a sensor configured to determine a user location relative to the computer. The sensor is also configured to gather environment data corresponding to an environment of the computer. The computer also includes a processor in communication with the sensor and configured to process the user location and the environment data and adjust at least one of an audio output or a video output. The output device is in communication with the processor and is configured to output at least one of the audio output or the video output. | 01-31-2013 |
20130028444 | AUDIO DEVICE WITH VOLUME ADJUSTING FUNCTION AND VOLUME ADJUSTING METHOD - An audio device and a volume adjusting method are provided. The audio device includes a speed sensor, a first FIFO buffer unit, and a second FIFO buffer unit. The audio device generates audio signals by playing multimedia files and stores audio signals to the first FIFO buffer unit. The audio device collects ambient sound signals and stores collected sound signals to the second FIFO buffer unit. The audio device further analyzes stored audio signals and sound signals to determine a waveform of environmental noise signals, and determines a SPL of the environmental noise signals according to the determined waveform. The audio device then compares the determined SPL with a preset SPL and compares the sensed speed with a preset speed if the determined SPL is greater than the preset SPL, and adjusts the volume of audio signals according to a comparison result between the sensed speed and the preset speed. | 01-31-2013 |
20130028445 | METHOD FOR PROCESSING AUDIO SIGNAL AND AUDIO SIGNAL OUTPUT APPARATUS ADOPTING THE SAME - An audio signal output apparatus and a method for processing an audio signal thereof are provided. the audio signal output apparatus including: an amplification unit receiving and amplifying which receives and amplifies an audio signal; a plurality of comparison units repeatedly comparing which performs comparisons of input levels of the audio signal using with different threshold values; and a control unit controlling which controls an output of the audio signal through by changing of gains a gain of the amplification unit units in accordance with the results of comparison the comparisons performed by the plurality of comparison units. | 01-31-2013 |
20130034246 | DIFFRACTED SOUND REDUCTION DEVICE, DIFFRACTED SOUND REDUCTION METHOD, AND FILTER COEFFICIENT DETERMINATION METHOD - A diffracted sound reduction device includes: a reproduction speaker that outputs reproduced sound having properties indicated by an input signal; control speakers each of which reproduces corresponding one of control signals, the diffracted sound being a part of the reproduced sound and arriving at corresponding one of the control points except the control point at the listener's position; and control filters each of which filters the input signal to generate corresponding one of the control signals. Each of the control points faces a corresponding speaker from among the reproduction speaker and the control speakers. Each of the control filters generates the corresponding one of the control signals so that a sound pressure of the diffracted sound at corresponding one of the control points is lower than a sound pressure of direct sound that is a part of the reproduced sound which arrives at the control point of the listener's position. | 02-07-2013 |
20130039513 | ELECTRONIC DEVICE AND METHOD FOR ADJUSTING VOLUME - The disclosure provides an electronic device and a method for adjusting volume adapted for the device. The electronic device defines at least two work modes. The method includes steps: determining whether one of the at least two work modes is selected; detecting a pulse frequency of a user in real time when one of the at least two work modes is selected; determining whether the pulse frequency is less than a reference value; and if the pulse frequency is less than the reference value, adjusting a volume according the selected work mode. | 02-14-2013 |
20130039514 | METHOD AND APPARATUS FOR SUPPLEMENTING LOW FREQUENCY SOUND IN A DISTRIBUTED LOUDSPEAKER ARRANGEMENT - An audio communication system is provided for generating an audio output for users in a region, the system comprising a plurality of portable communications devices for use by a respective plurality of users, each communications device comprising a microphone for inputting an audio signal by a user, a loudspeaker for generating an audio output for said user, said loudspeaker being adapted to output said audio output in at least a first frequency band, and a wireless interface for wireless communication to transmit said audio signals from said microphone and receive audio signals derived from an audio source for generating said audio output by said loudspeaker; and at least one low frequency loudspeaker device having an interface for receiving audio signals derived from a microphone of another communications device, and a low frequency loudspeaker adapted to output a low frequency audio output in said region only in a second frequency band lower than said first frequency band. | 02-14-2013 |
20130058501 | VOLUME CONTROL APPARATUS - When the instruction for increasing the volume level is input by the user's operation and the signal representing the set value or more is output from a detector, a controller does not increase the volume levels of the first volume controller and the second volume controller. When the signal representing the set value or more is not output from the detector and the second volume level has a predetermined value, the controller increases the first volume level. When the signal representing the set value or more is not output from the detector and the second volume level is less than the predetermined value, the controller increases the second volume level. | 03-07-2013 |
20130058502 | APPARATUS FOR PROCESSING AN AUDIO SIGNAL AND METHOD THEREOF - An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving a downmix signal and side information; extracting control restriction information from the side information; receiving control information for controlling gain or panning at least one object signal; generating at least one of first multi-channel information and first downmix processing information based on the control information and object information, without using the control restriction information; and, generating an output signal by applying the at least one of the first multichannel information and the first downmix processing information to the downmix signal, wherein the control restriction information relates to a parameter indicating limiting degree of the control information. | 03-07-2013 |
20130058503 | AUDIO PROCESSING APPARATUS, AUDIO PROCESSING METHOD, AND AUDIO OUTPUT APPARATUS - An audio processing apparatus includes a user detection unit that detects the presence or absence of a user; a user information obtaining unit that obtains user information about a user that is detected by the user detection unit; and an audio processing unit that performs a process for accentuating predetermined audio contained in input audio on the basis of the user information. | 03-07-2013 |
20130064394 | DIGITAL SIGNAL GENERATOR AND DIGITAL MICROPHONE - According to one embodiment, a digital signal generator includes an amplifying unit, a reference voltage generator and a modulator. The amplifying unit amplifies an analog input signal having a signal level linearly depending on a temperature. The reference voltage generator generates a reference voltage linearly depending on the temperature. The modulator converts the analog input signal amplified by the amplifying unit into a digital output signal based on the reference voltage. | 03-14-2013 |
20130064395 | AUDIO AMPLIFIER CIRCUIT AND METHOD THEREOF - An audio amplifier circuit and a method of the same are provided. The audio amplifier circuit includes a processor, a pre-processing module, and a post-processing module. The processor controls a pre-gain value of the pre-processing module and a post-gain value of the post-processing module in accordance with a volume adjustment signal so as to process an audio input signal and generate an audio output signal. The pre-gain value and the post-gain value are dynamically adjusted by the audio amplifier circuit and a method thereof by according to the volume adjustment signal so as to generate low distortion, low noise audio output signals and improve audio playback quality of an audio output device. | 03-14-2013 |
20130064396 | INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING METHOD - An information processing apparatus including an audio input unit, an amplifier unit, and a controller. The audio input unit is capable of converting audio into an electric audio signal. The amplifier unit is configured to amplify the audio signal obtained by the audio input unit and capable of performing auto gain control. The controller is configured to turn off the auto gain control of the amplifier unit when an application that uses an audio recognition is executed with respect to the amplified audio signal. | 03-14-2013 |
20130077803 | SOUND REPRODUCING DEVICE - A sound reproducing device includes parametric speakers disposed to a display, a loudspeaker, drivers, a human-body sensor, and a controller. The loudspeaker has a wider directivity than the parametric speakers. The drivers change directions of the parametric speakers, respectively. The parametric speakers and the drivers constitute at least two parametric speaker units each composed of respective one of the parametric speakers and respective one of the drivers. The controller reproduces sound information based the number of persons in front of the display detected from an output from the human-body senor. The sound reproducing device reduces the possibility for a number of persons to hear the sound noisily, and allows drawing more attention to the content, e.g. an advertisement. | 03-28-2013 |
20130094668 | PROXIMITY SENSING FOR USER DETECTION AND AUTOMATIC VOLUME REGULATION WITH SENSOR INTERRUPTION OVERRIDE - A mobile device includes at least one speaker and an audio subsystem for providing an audio signal to the at least one speaker for playback by the at least one speaker. The audio subsystem operates by detecting a distance to a user of the mobile device using a proximity sensor and controlling volume output of the at least one speaker based on the distance to the user of the mobile device and the operational status of the proximity sensor. If it is determined that the proximity sensor is functional, the audio subsystem applies a gain factor to the audio signal that varies based on the distance to the user or limits the maximum allowable speaker output based on the distance. A high or low gain setting may be applied for when the user is far away or in close proximity to the mobile device. | 04-18-2013 |
20130094669 | AUDIO SIGNAL PROCESSING APPARATUS, AUDIO SIGNAL PROCESSING METHOD AND A PROGRAM - An audio signal processing apparatus which includes an input analysis unit which analyses the characteristics of an input signal and generates an input sound feature value; an environment analysis unit which analyses the characteristics of the environmental sound and generates an environmental sound feature value; a mapping control information generation unit which generates mapping control information as control information of amplitude conversion processing to the input signal by application of the input sound feature value and the environmental sound feature value; and a mapping process unit which performs amplitude conversion on the input signal based on a linear or non-linear mapping function determined according to the mapping control information and generates an output signal. | 04-18-2013 |
20130094670 | SYSTEM AND METHOD FOR SYNCHRONIZING OPERATIONS AMONG A PLURALITY OF INDEPENDENTLY CLOCKED DIGITAL DATA PROCESSING DEVICES - An audio information source interface that receives first audio information from an audio information source directly connected to the audio playback device; an ADC configured to sample the first audio information; a network interface configured to connect the audio playback device to a network and to receive packets from the network containing second audio information and playback timing information from a network audio information source; a DAC for generating an analog audio signal based on either the first or second audio information; an audio amplifier interconnected with the DAC and configured to amplify the audio signal; an audio reproduction device interface interconnected with the audio amplifier; and, a control module configured to receive commands via the network interface and to provide to the DAC one of the first or second audio information. | 04-18-2013 |
20130101138 | ACOUSTIC DEVICE AND METHOD OF REPRODUCING ACOUSTIC SIGNAL - An acoustic device, which reproduces an acoustic signal of one acoustic source selected from a plurality of acoustic sources. A first averaging unit averages signal levels of the acoustic signal for a first time period to obtain a first average signal. A second averaging unit averages the signal levels for a second time period shorter than the first time period to obtain a second average signal. A selecting unit selects either the first average signal or the second average signal as one signal having a signal level higher than the other. A gain decreasing unit decreases a gain of the acoustic signal according to the signal level of the one signal if the signal level of the one signal is higher than a threshold value determined according to the one acoustic source. A correcting unit corrects the signal levels of the acoustic signal according to the gain. | 04-25-2013 |
20130101139 | MULTIBAND AUDIO DYNAMICS PROCESSOR - An audio system includes a level controller receiving an input audio signal from an audio medium. The level controller includes a gain adjust module producing an output audio signal based on the input audio signal. A filter arrangement is communicatively coupled to the level controller. The filter arrangement receives the output audio signal and divides the output signal into a plurality of filtered signals. Each of the filtered signals corresponds to a respective frequency band. A multiband dynamics controller is communicatively coupled to the filter arrangement. The multiband dynamics controller receives the filtered signals and applies a respective gain characteristic to each of the filtered signals to thereby produce a plurality of gain adjust signals. The gain adjust signals are combined into a multiband dynamics controller output signal. | 04-25-2013 |
20130108079 | AUDIO SIGNAL PROCESSING DEVICE, METHOD, PROGRAM, AND RECORDING MEDIUM | 05-02-2013 |
20130129115 | System and Method for Dynamic Range Extension Using Interleaved Gains - A method and system is presented for sampling analog signals in a manner that avoids the effects of signal clipping due to a limited dynamic range. A method and device for sampling an analog input using multiple gains, or gain mask, is described. By using different gains during different time quanta, a subset of the sampled points may effectively be attenuated before being sampled and converted to a digital representation. If clipping occurs during the sampling process, the true values of the clipped samples may be interpolated using the amplitudes of the non-clipped samples, which may not have been attenuated. Such interpolation may include constructing and/or solving a constraint optimization problem using linear programming. In one embodiment, such a problem may be constructed and/or solved by using sign information from the clipped samples and/or by imposing a sparsity assumption on the signals during the reconstruction process. | 05-23-2013 |
20130129116 | Glitch Detection and Method for Detecting a Glitch - System and method for detecting a glitch is disclosed. An embodiment comprises increasing a bias voltage of a first capacitor, sampling an input signal of a first plate of the first capacitor with a time period, mixing the input signal with the sampled input signal, and comparing the mixed signal with a reference signal. | 05-23-2013 |
20130136277 | VOLUME CONTROLLER, VOLUME CONTROL METHOD AND ELECTRONIC DEVICE - According to at least one embodiment, a volume controller includes an audio processor configured to generate an output signal by variably controlling an amplitude of an input signal; and a volume controller configured to set a sound volume for the variable control based on the input signal. | 05-30-2013 |
20130142361 | METHOD FOR CONTROLLING ALTITUDE INFORMATION-BASED USER FUNCTIONS AND MOBILE DEVICE ADAPTED THERETO - A method for controlling altitude information-based user functions and a mobile device adapted thereto are provided. The mobile device includes a storage unit for storing audio data that will be output according to the activation of a user function, and auxiliary data that will be applied to the audio data if an audio data altering function is set when the user function is activated, a sensing unit for collecting altitude information to set auxiliary data that will be applied to the audio data according to the activation of the user function, a controller for creating altered audio data by applying predefined auxiliary data to audio data that will be output when the user function is executed, according to the altitude information, and an audio processing unit for outputting the altered audio data. | 06-06-2013 |
20130148824 | AUTO VOLUME CONTROL METHOD FOR MIXING OF SOUND SOURCES - Disclosed is an auto volume control method and system for mixing of sound sources. The control method and system mixes the sound sources by controlling signals of the sound sources automatically inputted by a simple control method, such that the signals from a plurality of sound sources are mixed to prevent an overflow phenomenon of the sound sources from occurring. | 06-13-2013 |
20130148825 | VOLUME CONTROL SYSTEM, CONTROLLER PROGRAM OF THE VOLUME CONTROL SYSTEM, AND AUDIO OUTPUT DEVICE OF THE VOLUME CONTROL SYSTEM - A volume control system, that can easily check current volume values with respect to volume values settable in a plurality of audio output devices when a volume value representing the volume values of the audio output devices is displayed, is provided. A controller of the volume control system can be connected to the plurality of the audio output devices, and can control the audio output devices. The controller obtains the volume values of the audio output devices and predetermined upper limit volume values stored in the audio output devices, and displays percentages of the volume values with respect to the predetermined upper limit volume values as total volume values. Further, the controller displays values that are determined by multiplying the total volume values and percentages of the predetermined upper limit volume values with respect to prescribed values as the volume values of the audio output devices. | 06-13-2013 |
20130148826 | METHOD AND APPARATUS FOR PROCESSING AUDIO IN MOBILE TERMINAL - A method and an apparatus for processing audio data that controls pressure of a played sound to improve a quality of audio are provided. The method for processing audio in a mobile terminal includes: receiving the audio from a microphone; calculating by a controller a sound pressure level of the received audio; determining a sound pressure state of the received audio based on the calculated sound pressure level; and controlling an input gain of the audio based on the determination result. | 06-13-2013 |
20130156226 | VOLUME ADJUSTMENT CIRCUIT WITH AUTOMATIC GAIN CONTROL AND ELECTRONIC DEVICE USING SAME - A volume adjustment circuit includes an amplification circuit, a control circuit and an adjustment circuit. The amplification circuit amplifies a first audio signal received and generates a second audio signal, and outputs the second audio signal to an audio output terminal. The control circuit is electrically coupled to the audio output terminal, and is configured to generate a control signal based on the second audio signal. The adjustment circuit is electrically coupled to the control circuit, and configured to adjust an amplitude of the first audio signal inputted to the amplification circuit based on the control signal. | 06-20-2013 |
20130156227 | SOUND OUTPUT DEVICE AND METHOD OF ADJUSTING SOUND VOLUME - A sound output device of the present invention is one that receives a digital audio signal including a plurality of channels and performs digital signal processing on the received digital audio signal, and includes a detecting portion which detects peak values or effective values of the plurality of channels included in the digital audio signal. The sound output device also includes an electric power calculating portion which calculates necessary electric power to output sound of each of the channels according to the peak values or the effective values. The sound output device also includes a sound volume adjusting portion which adjusts sound volume of the digital audio signal according to a total of the necessary electric power calculated by the electric power calculating portion for each of the channels. | 06-20-2013 |
20130156228 | Sound Processing Apparatus, Sound System and Sound Processing Method - A sound processing apparatus processes a first sound signal and a second sound signal. The sound processing apparatus includes a first adjustor which adjusts a volume of the first sound signal, a second adjustor which adjusts a volume of the second sound signal, and a control unit which causes the first adjustor and the second adjustor to adjust the first sound signal gradually changed over a first gradually-change time and the second sound signal gradually changed over a second gradually-change time, wherein the second gradually-change time is shorter than and included in the first gradually-change time. | 06-20-2013 |
20130156229 | METHODS AND SYSTEMS FOR DETERMINING AUDIO LOUDNESS LEVELS IN PROGRAMMING - A program asset is retrieved. The program asset has audio encoded at a first loudness setting and includes metadata specifying the first loudness setting. Dialog of the audio is identified. The loudness of the dialog is determined. The determined loudness is compared to the first loudness setting. The program asset is re-recorded at a second loudness setting corresponding to the determined loudness, if the first loudness setting and the determined loudness are different by more than a predetermined amount. | 06-20-2013 |
20130170668 | SOUND SYSTEM WITH INDIVIDUAL PLAYBACK ZONES - The invention relates to a sound system in a vehicle. The sound system comprises a first audio signal source providing a first audio signal and a second audio signal source providing a second audio signal. The sound system further comprises loudness determination unit is configured for determining a loudness of the first audio signal based on a psycho-acoustic model of a human hearing and a type information unit configured for establishing type information of the second audio signal. The sound system further comprises a control unit configured for individually selecting, for each of at least two playback zones, a mixing mode depending on the type of the second audio signal, wherein the mixing modes relate to a relation between signal output gains of the first and second audio signals. The control unit is further configured for individually mixing for playback, in each of the at least two playback zones, the first audio signal and the second audio signal based on the selected mixing mode and the determined loudness. The sound system further comprises a plurality of loudspeakers addressing individually the at least two playback zones. | 07-04-2013 |
20130177173 | System and Method for Controlling Volume in Audio/Listening Devices - A system and method for automatically limiting or otherwise controlling the volume level within audio devices is provided. A sound level controlled amplification system is configured to sample audio signals for an audio device, and if above a predetermined limit, de-amplify the volume level to a safer level of sound, and control and maintain such safe level until the sample audio signal is within the predetermined limit of safe sound. | 07-11-2013 |
20130188808 | Method and Apparatus for Circuit with Low IC Power Dissipation and High Dynamic Range - An apparatus comprises a selected volume detector that detects a selected output volume; an analog output signal amplifier; a digital volume amplifier; a boost gain control element coupled to the selected volume detector; the analog output signal amplifier; and the digital volume amplifier; wherein the boost gain control element is configured to: keep a gain of a path of the digital volume amplifier and the analog output signal amplifier substantially constant, wherein the boost gain control element can adjust both: a) a gain of the digital volume control; and b) a gain of the analog output signal amplifier; to keep the gain of the path of the digital volume amplifier and the analog output signal substantially constant and equal to the selected output volume. | 07-25-2013 |
20130202132 | Motion Based Compensation of Downlinked Audio - Embodiments relate to systems for, and methods of, compensating for movement of a loudspeaker relative to a user's head, where the loudspeaker is present in a mobile device. Example systems and methods produce ( | 08-08-2013 |
20130208919 | METHOD AND APPARATUS TO AUTOMATICALLY CONTROL AUDIO VOLUME - A method includes comparing a magnitude value of an audio signal in a fixed unit section with a target volume level, measuring audio gain in each fixed unit section using specific functions which are each determined to be different according to a ratio of the target volume level to the audio signal magnitude, and providing the measured audio gain to the audio signal in the fixed unit section. | 08-15-2013 |
20130208920 | Peripheral Apparatus - A peripheral apparatus, for connecting to a first or a second transmission port of an electronic device, includes a signal transmission interface, a triggering unit, an amplifying unit and an adjusting unit. The signal transmission interface, coupled to the first or the second transmission port, includes a first and a second group of pins. The triggering unit is coupled to the signal transmission interface. When the signal transmission interface is coupled to the first or the second transmission port, the triggering unit outputs a first or a second voltage level signal, respectively. The amplifying unit is coupled to the signal transmission interface and a functional unit. The adjusting unit, coupled to the signal transmission interface, the triggering unit, the amplifying unit and the functional unit, changes an output power transmitted from the amplifying unit to the functional unit according to the first or the second voltage level signal. | 08-15-2013 |
20130230192 | ELECTRONIC DEVICE, CONTROL VOLUME SYSTEM AND METHOD - In the specification and drawing a control volume system is described and shown for synchronizing a sound volume of an electronic device and another sound volume of the peripheral device according to a volume specification of the electronic device and another volume specification of the peripheral device. Moreover, a control volume method and the electronic device are also disclosed in the specification and drawing. | 09-05-2013 |
20130251175 | SYSTEM AND METHOD FOR DIGITAL SIGNAL PROCESSING - The present invention provides methods and systems for digitally processing audio signals in broadcasting and/or transmission applications. In particular, the present invention includes a pre-transmission processing module which is structured and configured to generate a partially processed signal. A transmitter is then structured to transmit or broadcast the partially processed signal to a receiver, where the signal is then fed to a post-transmission processing module. The post-transmission processing module is structured and configured to further processes the signal based upon, for example, the listening environment, profile(s), etc. and generate a final output signal. | 09-26-2013 |
20130259265 | Audio Signal Output Device and Audio Output System - This audio signal output device includes an audio signal output portion, a volume setting information acquisition portion, and a control portion acquiring maximum volume information of volume information of an audio signal of content. The control portion is configured to calculate the maximum output volume of an external device on the basis of the maximum volume information of the content and volume setting information of the external device and perform control of lowering the output volume of the external device when the maximum output volume is higher than a prescribed volume threshold. | 10-03-2013 |
20130272542 | SYSTEM FOR ADJUSTING LOUDNESS OF AUDIO SIGNALS IN REAL TIME - A method of adjusting a loudness of an audio signal in real time may include receiving an electronic audio signal and dividing the audio signal into a plurality of frames. Processing of the frames may be performed in real time. The processing may include measuring initial loudness values for blocks of samples in a frame to produce a plurality of initial loudness values, and computing a weighted average of at least some of the initial loudness values. The weights may be selected based on one or more of the recency of the initial loudness values, variation of the initial loudness values, and estimated information content of the audio signal. The processing may further include selectively discarding at least some of the loudness values that reach an adaptive loudness threshold. Weights can be adjusted based on the variation of the loudness values of the audio signal. | 10-17-2013 |
20130272543 | SYSTEM FOR ADJUSTING LOUDNESS OF AUDIO SIGNALS IN REAL TIME - A method of adjusting a loudness of an audio signal in real time may include receiving an electronic audio signal and dividing the audio signal into a plurality of frames. Processing of the frames may be performed in real time. The processing may include measuring initial loudness values for blocks of samples in a frame to produce a plurality of initial loudness values, and computing a weighted average of at least some of the initial loudness values. The weights may be selected based on one or more of the recency of the initial loudness values, variation of the initial loudness values, and estimated information content of the audio signal. The processing may further include selectively discarding at least some of the loudness values that reach an adaptive loudness threshold. Weights can be adjusted based on the variation of the loudness values of the audio signal. | 10-17-2013 |
20130279719 | MOBILE TERMINAL AND CONTROL METHOD THEREOF - Disclosed are a mobile terminal and a control method thereof. The mobile terminal includes: a sound output module configured to output a sound; a user input unit configured to sense a control command for controlling a volume level of the output sound; and a controller configured to control a volume level of the output sound based on the sensed control command, configured to determine whether the controlled volume level corresponds to a preset volume level, and if the controlled volume level corresponds to the preset volume level, configured to output a signal corresponding to the preset volume level in the form of a signal different from the output sound. | 10-24-2013 |
20130279720 | SPEAKER ARRAY CONTROL METHOD AND SPEAKER ARRAY CONTROL SYSTEM - A speaker array control method includes steps of detecting a position of an audience located in front of a speaker array, wherein the speaker array includes N speakers and N is a positive integer larger than one; defining a target and a non-target with respect to an i-th speaker of the N speakers according to the position of the audience, wherein i is a positive integer smaller than or equal to N; calculating a weighting vector for the i-th speaker according to the target and the non-target; adjusting a directionality of an output signal of the i-th speaker by the weighting vector and reducing energy of a plurality of side lobes of the output signal of the i-th speaker; and controlling the i-th speaker to output the adjusted output signal when the energy of each of the side lobes is smaller than a threshold. | 10-24-2013 |
20130287228 | INTELLIGENTLY INCREASING THE SOUND LEVEL OF PLAYER - Techniques for optimizing a player based on the addition of a second player are disclosed. In an embodiment, when a first player no longer needs to play certain audio frequencies due to the addition of a second player, the gain of the first player is automatically increased as part of the setup process. In another embodiment, when a first player needs to play certain audio frequencies, for example due to the removal of a second player, the gain of the first player is automatically decreased. Many other embodiments are disclosed. | 10-31-2013 |
20130287229 | METHOD, SYSTEM AND APPARATUS FOR PROCESSING AUDIO SIGNALS - A processing method and a processing apparatus for processing an output audio signal from an audio capture device. The output audio signal can be processed by a first processing module in a manner such that a preliminary signal and a first stage processed signal can be derived. The processing method includes providing power estimation signals, providing at least one cross power estimation signal, providing a leakage approximation and providing a control signal estimation. | 10-31-2013 |
20130308794 | MITIGATING THE EFFECTS OF AUDIO INTERRUPTIONS VIA ADAPTIVE AUTOMATED FAST AUDIO PLAYBACK - An audio interruption and buffering playback system includes a primary audio source for reproducing primary audio content and a secondary audio source for reproducing secondary audio content. A processing device detects an interruption event that includes the secondary audio source reproducing secondary audio content having priority over the primary audio source. The processor mutes the output of the primary audio content in response to the interruption event. A buffer buffers the audio content from the primary audio source during the interruption event. The buffered audio content is reproduced by the processor to the user at an accelerated playback speed following the interruption event. | 11-21-2013 |
20130315420 | AUDIO SIGNAL ADJUSTMENT METHOD AND AUDIO PLAYER HAVING AUDIO SIGNAL ADJUSTMENT FUNCTION - A computerized method adjusts two presented audio signals using an audio player. A first audio signal is received and played through an audio playing unit. When a second audio signal that is inserted to be played is received in time during the playing of the first audio signal, a peak amplitude X of a volume of the first audio signal and a peak amplitude Y of a volume of the second audio signal are extracted. Each of the peak amplitude X and the peak amplitude Y are compared with a predetermined threshold value A. The first audio signal and/or the second audio signal are adjusted according to the comparison, and the first audio signal and/or the second audio signal is outputted to the audio playing unit and played through the audio playing unit according to the adjustment for the first audio signal and/or the second audio signal. | 11-28-2013 |
20130322652 | METHOD AND APPARATUS FOR PROCESSING AUDIO SIGNAL - A method and an apparatus process an audio signal. The method of processing an audio signal includes: separating the audio signal into a first harmonic signal and a first percussion signal; adjusting gains of the first harmonic signal and the first percussion signal to generate a second harmonic signal and a second percussion signal; and adding the second harmonic signal and the second percussion signal. The method can generally improve the apparatus for controlling a gain and adopt a reproducing volume level to a current environment by separating the audio signal into a harmonic signal and a percussion signal to adjust a gain. The audio signal can have a high output level without non-linear distortion. | 12-05-2013 |
20130329912 | SYSTEMS AND METHODS FOR ADJUSTING AUTOMATIC GAIN CONTROL - Automatic gain control systems disclosed herein can incorporate a confidence metric that can estimate the accuracy of gain adjustments calculated by an automatic gain control module. The confidence metric may be based on a percentage of valid audio samples in a given period of time. Based on the confidence metric, the AGC response may be reduced, delayed, frozen, or otherwise altered from the baseline gain adjustment. Time-averaging process may be used to estimate the input signal power level and determine an appropriate baseline gain adjustment. Additionally, weighting functions can be adjusted to prevent overestimation of the signal power. | 12-12-2013 |
20130343574 | Enhanced Audio Component In Streamed Media - Techniques are provided for enhancing the audio component of streamed media provided by an application on a computing device, referred to collectively herein as an enhance audio mode. The mode may be configured to enhance audio by adjusting the volume gain during playback of streamed media from a specific application (e.g., Netflix or Pandora). In some cases, detection of playback from a specific media streaming application may be based on detection of a system file update, which may occur, for example, in a user space level. In some cases, the volume gain adjustment may be applied by an audio codec included with the computing device, which may occur, for example, in a kernel space level. The volume gain adjustment may be determined by analyzing the amplitude of the audio component of media streamed from a specific application relative to the speaker(s) included with the computing device. | 12-26-2013 |
20140003629 | Modification of audio responsive to proximity detection | 01-02-2014 |
20140003630 | AUDIO PROCESSOR AND COMPUTER PROGRAM PRODUCT | 01-02-2014 |
20140023208 | DIGITAL AUDIO AMPLIFICATION DEVICE USING HARMONICS AND METHOD THEREOF - The present invention relates to a digital audio amplification device using harmonics and a method thereof, and more specifically, the invention differentially generates characteristics of harmonics (for instance, amplitude or frequency components of harmonics) of an audio signal in order to compensate the audio signal that exceeds a preset threshold value according to the amplitude and characteristics of the audio signal, if the audio signal exceeds the preset threshold value, thereby easily improving the amplitude and the pitch of audio during digital audio amplification. | 01-23-2014 |
20140023209 | AUDIO SYSTEM INCLUDING MULTIBAND AUDIO DYNAMICS PROCESSOR - An audio system includes a level controller receiving an input audio signal from an audio medium. The level controller includes a gain adjust module producing an output audio signal based on the input audio signal. A filter arrangement is communicatively coupled to the level controller. The filter arrangement receives the output audio signal and divides the output signal into a plurality of filtered signals. Each of the filtered signals corresponds to a respective frequency band. A multiband dynamics controller is communicatively coupled to the filter arrangement. The multiband dynamics controller receives the filtered signals and applies a respective gain characteristic to each of the filtered signals to thereby produce a plurality of gain adjust signals. The gain adjust signals are combined into a multiband dynamics controller output signal. | 01-23-2014 |
20140029765 | AUDIO DEVICE WITH MUTE FUNCTION - An audio device prevents an excessive volume output in a case such as when a set of headphones is replaced or a power supply is turned ON from OFF. A mute control circuit includes a switch that detects insertion of a headphone plug and a switch that detects a volume position. When no insertion of a headphone plug is detected, a mute mode is activated to output no audio signals. When insertion of a headphone plug is detected and it is not detected that the volume position is set at a mute position or near to the mute position, the mute mode is maintained, while when it is detected that the volume position is set at the mute position or near to the mute position, the mute mode is canceled. | 01-30-2014 |
20140037107 | Volume Interactions for Connected Playback Devices - Methods and systems are provided for, volume interactions for connected playback device. In one example, a plurality of playback devices may be rendering audio in synchrony, when a volume adjustment is made for the plurality of playback devices as a group. In one case, a first playback device in the plurality of playback devices may have a volume limit, as indicated by a state variable associated with the first playback device. In this case, the resulting volume adjustment for the first playback device may be made according to both the group volume adjustment and the volume limit of the first playback device. | 02-06-2014 |
20140037108 | AUTOMATIC LOUDNESS CONTROL - An improved automatic loudness control system and method comprise controlling gain/attenuation applied to an input audio signal and providing an output audio signal that is the amplified/attenuated input audio signal; evaluating an actual loudness of the input audio signal from the input audio signal and a desired loudness of the input audio signal from a volume control input; and evaluating the gain/attenuation applied to the input audio signal from the actual loudness and the desired loudness of the input audio signal. | 02-06-2014 |
20140037109 | METHOD AND APPARATUS FOR ALARM SERVICE USING CONTEXT AWARENESS IN PORTABLE TERMINAL - A method and apparatus for an alarm service using context awareness in a portable terminal are provided. A control method for preventing the disruption of sleep includes sensing if a user is in a sleep state and, when the user is in the sleep state, adjusting a volume level to a preset volume level, and adjusting screen brightness to a preset screen brightness when the user is in the sleep state. | 02-06-2014 |
20140056441 | POLICY-BASED VEHICLE HORN FUNCTIONS - Vehicle horn functions are implemented by a computer processor integral with a vehicle and logic executable by the computer processor. The logic derives a current value associated with a component defined by a policy, retrieves from a data file a volume setting mapped to the current value, and modifies operation of a horn in the vehicle to produce a volume corresponding to the volume setting when an operator of the vehicle activates the horn. | 02-27-2014 |
20140064518 | AUDIO DEVICE AND OUTPUT METHOD THEREOF - An audio device and an output method thereof are provided. The audio device includes: an envelope detector configured to detect an envelope of an input audio signal; a power supply which includes a linear power supply (LPS) and a switching-mode power supply (SMPS); an amplifier configured to amplify the input audio signal; an output unit configured to output the audio signal amplified by the amplifier; and a controller configured to compare a voltage level of the detected envelope with a preset level, select one of the LPS and the SMPS based on a result of the comparison, and control the power supply to supply power from the selected one of the LPS and the SMPS to the amplifier. | 03-06-2014 |
20140072144 | VOLTAGE SUPPLY CIRCUIT, AUDIO OUTPUT APPARATUS, AND VOLTAGE SUPPLYING METHOD - A voltage supply circuit is provided. The voltage supply circuit includes a voltage amplifier and a power selecting circuit. A power terminal of the voltage amplifier receives an operation power and outputs a gain voltage for driving an output device. The power selecting circuit receives a plurality of supply voltages and supplies one of the supply voltages to the power terminal of the voltage amplifier as the operation power according to a volume level of an audio signal. An audio output apparatus and a voltage supplying method thereof are also provided. The audio output apparatus includes the voltage supply circuit and a speaker. | 03-13-2014 |
20140072145 | AUDIO-PLAYING SYSTEM AND METHOD FOR PROTECTING STORAGE MEDIUM OF ELECTRICAL DEVICE - The present invention discloses an audio playing system for protecting a storage medium of an electrical device. The audio playing system includes a detecting unit, a processing unit, an adjusting module and a playing module. The detecting unit detects vibration of the electrical device to generate a detection signal corresponding to the vibration. The processing unit compares the detection signal with the tolerable vibration value of the storage medium to generate a comparison result, and generates an adjustment signal according to the comparison result. The adjusting module adjusts an audio file according to the adjustment signal to generate an adjusted audio file. The playing module plays the adjusted audio file. The present invention also discloses an audio playing method for protecting a storage medium of an electrical device. | 03-13-2014 |
20140079246 | Distortion Limiter and Automatic Power Control for Drivers - Systems and methods are disclosed to provide automatic power control for a driver circuit. Embodiments disclosed herein enable a driver circuit to automatically decrease the gain of amplified input signals when output power exceeds a threshold. Further, embodiments disclosed herein enable a driver circuit to automatically increase the gain of amplified input signals when battery supply voltage drops to avoid unwanted output signal distortion. By using reference signals for battery power and amplified signal input, the amplifiers of the driver circuit can be automatically adjusted until an equilibrium is reached. | 03-20-2014 |
20140086435 | DYNAMIC RANGE CONTROL APPARATUS | 03-27-2014 |
20140093099 | Wireless Microphone Structure - A wireless microphone structure contains: a cartridge module, an audio output switch, a gain controller, an audio amplifier, and a sound mixer, after the cartridge module receiving sounds, the sounds are outputted from the sound mixer via the gain controller and an audio amplifier so that a power source supplies power via a regulator circuit, characterized in that: the sound mixer has an input port and an output port of a network cable so that an input port and an output port of each of at least one wireless microphone are connected together via the network cable. | 04-03-2014 |
20140093100 | USER TERMINAL APPARATUS, ELECTRONIC DEVICE, AND METHOD FOR CONTROLLING THE SAME - A user terminal apparatus connected to an electronic device, and a method thereof, are provided. The apparatus includes a communicator that performs communication with the electronic device, an audio processor that processes an audio source to be transmitted to the electronic device, and a controller that adjusts a sound level of the audio source based on a reference volume unit of the electronic device, and controls the adjusted audio source to be transmitted to the electronic device in a streaming method. | 04-03-2014 |
20140093101 | MOBILE TERMINAL AND METHOD FOR CONTROLLING SOUND OUTPUT - Provided is a mobile terminal and method for controlling a sound (audio) to be output, the mobile terminal including at least one application including sound (audio) data and requesting an output sound, a sound (audio) control unit to determine an output sound when a plurality of requests for the output sound is input by a plurality of applications being executed, and a sound (audio) output unit to output the determined sound by forming a virtual output path for each of the sound data to be output, and blocking other virtual output paths aside from a virtual output path mapped to the sound determined to be output by the sound control unit. | 04-03-2014 |
20140105420 | BROADCAST ADVERTISEMENT VOLUME CONTROL SYSTEM AND METHOD THEREFOR - A system for controlling a volume of a broadcast advertisement including an advertisement agency server, a broadcaster server, a monitoring apparatus, and an advertisement company server, which are connected through a wire or wireless communication network is provided. The advertisement agency server includes an advertisement material storage unit, an advertisement material conversion unit, an advertisement watermark generation unit, a format conversion unit, and a cost calculation unit. The advertisement material conversion unit includes an advertisement reference volume storage unit for storing reference volume information of a volume included in the advertisement material, a volume comparison unit for comparing to determine whether an advertisement reference volume is different from a broadcaster reference volume stored in the broadcaster reference volume storage unit, and an advertisement volume conversion unit for storing the advertisement material having a changed volume and converted advertisement information in the advertisement agency server. | 04-17-2014 |
20140105421 | SOUND OUTPUT SYSTEM, NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM HAVING SOUND OUTPUT PROGRAM STORED THEREON, SOUND OUTPUT CONTROL METHOD, AND INFORMATION PROCESSING APPARATUS - An information processing apparatus generates a signal of a first sound to be output to a first output device, and a signal of a second sound which is a sound to be output to a second output device and whose content is different from that of the first sound. The second output device is capable of setting a volume, and outputs a sound based on the signal of the second sound at a set volume. In addition, the second output device notifies an information processing apparatus of information about the set volume. When the set volume is small, the information processing apparatus generates the signal of the first sound so that at least a part of sounds included in the second sound is included in the first sound. | 04-17-2014 |
20140112498 | METHOD AND IMPLEMENTATION APPARATUS FOR INTELLIGENTLY CONTROLLING VOLUME OF ELECTRONIC DEVICE - The present invention discloses a method and an implementation apparatus for intelligently controlling volume of an electronic device, where the electronic device is installed with microphones. The method includes receiving an external sound picked up by the microphones, extracting content information of the external sound, determining, according to the content information of the external sound, whether a prestored sound template database includes a sound that is matched with the content information of the external sound, and generating a first determining result. If the first determining result is yes, the method includes adjusting volume of a sound that is being output, or generating a prompt tone, turning off a sound that is being output, and outputting the prompt tone. In the present invention, an electronic device is enabled to intelligently control its own volume according to an external sound. | 04-24-2014 |
20140119571 | Method and Device for Automatically Adjusting Sound Volume - The disclosure provides a method and a device for automatically adjusting sound volume, wherein the method includes: detecting and acquiring magnitude of a current flowing through a loudspeaker and/or an earphone; quantizing the acquired magnitude of the current to acquire a quantized value of current audio; adjusting sound volume according to a comparison result between the quantized value of the current audio and a audio value which is set by a user. With the disclosure, sudden change of sound volume caused by the change of music files or different music types can be effectively avoided, so as to protect hearing of the user and avoid the user from being frightened due to extremely high sound volume, thereby improving user experience. | 05-01-2014 |
20140119572 | SPEECH CODING SYSTEM AND METHOD USING BI-DIRECTIONAL MIRROR-IMAGE PREDICTED PULSES - A method of decoding speech data generated from a speech signal includes receiving the speech data having at least one main pulse in a subframe of the speech data, and generating a first predicted pulse, based on the at least one main pulse, on one side of the main pulse in the subframe of the speech data, where the first predicted pulse has a lower gain than the main pulse. The method also includes generating a second predicted pulse, as a mirror image of the first predicted pulse on a reverse time scale, on the other side of the main pulse in the subframe of the speech data, and reconstructing the speech signal using the at least one main pulse, the first predicted pulse and the second predicted pulse. | 05-01-2014 |
20140133676 | SOUND VOLUME ADJUSTING APPARATUS - A sound volume adjuster includes: a storage which stores a first value of a volume setting value and an allowable maximum change amount; a communication interface which receives a change request indicating a second value of the volume setting value; a comparison device which, when a change amount of the volume setting value between the first value and the second value exceeds the allowable maximum change amount, determines that the change request is an excessive request; and a volume controller which, when the comparison device determines that the change request is the excessive request: changes the first value stored in the storage by a change amount which is equal to or smaller than the allowable maximum change amount to set a third value of the volume setting value; and adjusts a sound volume by the third value. | 05-15-2014 |
20140140539 | Communication Device with Motion Dependent Auto Volume Control - A communication device ( | 05-22-2014 |
20140146981 | AUDIO SYSTEM - An audio system includes a channel ( | 05-29-2014 |
20140161284 | CONTACTLESS VOLUME CONTROL DEVICE WITH ADJUSTABLE GAIN AND MULTI-OUTPUT - A contactless volume control device with adjustable gain and multi-output is configured as a contactless structure with a magnetic slider and a plurality of magnet sensors. The magnetic field of the magnetic slider is sensed by the plurality of magnet sensors to generate a plurality of sensed signals, which allows an output module to provide a data table to show the position of the magnetic slider and the corresponding output voltage thereof according to the sensed signals. Furthermore, the output module is capable of storing multiple variable data to produce different outputs so as to achieve the objective of gain adjusting. Additionally, a processing unit built in the output module has a plurality of output ends so as to output multiple signals. And the magnetic slider and the plurality of magnet sensors have advantages of simple structure, easy manufacture and low cost. | 06-12-2014 |
20140161285 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL - A method of processing an audio signal, and which includes a receiving object information including object level information indicating a level of objects, object gain information and object correlation information; receiving preset presence information and preset number information; receiving preset information based on the preset presence information and the preset number information by an audio decoding apparatus, the preset information including preset metadata representing an attribute mode of the preset information, preset rendering data and preset type information indicating whether the preset rendering data is in a matrix type or not obtaining a preset matrix from the preset rendering data by the audio decoding apparatus, and generating a processed audio signal by controlling a gain or panning of the at least one object included in the audio signal based on the downmix processing information. | 06-12-2014 |
20140169587 | ELECTRONIC DEVICE AND METHOD FOR ADJUSTING VOLUME LEVELS OF AUDIO SIGNAL OUTPUTTED BY THE ELECTRONIC DEVICE - An electronic device includes an audio sensor, an audio output unit, a pulse width modulation (PWM) unit connected to the audio output unit, and a control chip. When the audio output unit outputs the audio signal, the audio sensor detects a volume level of the environment sound. The control chip determines a volume level of the audio signal according to the volume level of the environment sound and preset associations between volume levels of the audio signal outputted by the audio output unit and volume levels of the environment, and determines a duty cycle of the PWM unit according to the determined volume level and the maximum volume level. The control chip then outputs the duty cycle to the PWM unit, to adjust a current volume level of the audio signal outputted by the audio output unit to the determined volume level. | 06-19-2014 |
20140185830 | METHODS, SYSTEMS, AND APPARATUS FOR AUDIO BACKTRACKING CONTROL - Example methods, systems, and apparatus for audio backtracking control are provided. An example method includes comparing an audio input value associated with an audio input to a threshold. The audio input is to be synchronized with an audio backtrack. The example method includes suppressing an output of the audio backtrack when the audio input value is below the threshold. The example method includes controlling a temporal pointer associated with the audio backtrack during a period of time in which the audio input value is below the threshold. | 07-03-2014 |
20140185831 | VOLUME CONTROL METHOD AND SYSTEM - In a volume control method applied to an audio processing system, firstly, a digital audio stream including a plurality of digital audio packets is received from a transmitter. It is determined whether an excitation signal is detected. The digital audio packets are sampled within a predetermined sampled period according to codecing rules, on condition that the excitation signal is detected. Output values corresponding to the digital audio packets are retrieved from the sampled digital audio packets according to the sampling operation. The digital audio packets are analyzed to generate sums of sampled frequency. An averaged volume level is calculated according to the sums of sampled frequency. An audio shift value is generated according to the averaged volume level and a predetermined standard volume level. Volume control is implemented to subsequently received digital audio packets from the digital audio stream according to the audio shift value. | 07-03-2014 |
20140185832 | Assembly with an Analog Data Processing Unit and Method of Using Same - An assembly includes an analog signal processing unit. An analog signal path and an amplifier an automatic gain control unit are coupled to the signal path. Further to the output of the amplified analog signal, a gain information is provided as an analog or digital signal at a gain information output. This information can be used for further processing the signal, e.g., by automatic noise compression or to control further signal processing units. | 07-03-2014 |
20140185833 | AUDIO PROCESSING APPARATUS AND METHOD - There is provided an audio processing apparatus. An obtaining unit obtains an audio signal. A first audio level controller gives a first gain to the audio signal obtained by the obtaining unit. A second audio level controller gives a second gain to the audio signal output from the first audio level controller. A time constant in processing for increasing the first gain of the first audio level controller is larger than a time constant in processing for increasing the second gain of the second audio level controller. | 07-03-2014 |
20140198931 | Digital Electronic Device and Method for Adjusting Signal Level of Digital Signal - This digital electronic device includes an arithmetic portion calculating an adjustment coefficient employed to adjust a signal level calculated on the basis of a digital value detected by a detecting portion to not more than a possible output level that an output portion can output and an adjusting portion adjusting a digital signal on the basis of the adjustment coefficient calculated by the arithmetic portion such that the signal level becomes not more than the possible output level. | 07-17-2014 |
20140233759 | Situation Responsive Audio System - A method of controlling an audio system includes generating a situation response model for a situation parameter, determining a situation parameter value, and at least one of (1) providing an audio system output as a function of the situation response model and the situation parameter value and (2) receiving an audio system input as a function of the situation response model and the situation parameter value. | 08-21-2014 |
20140233760 | ULTRASONIC SPEAKER SYSTEM - An ultrasonic speaker system has a first variable gain block, a modulation block, a second variable gain block, an ultrasonic actuator, and a controller, wherein the controller controls gain of the first variable gain block so that a modulation degree of a modulated signal becomes a predetermined value, and when the controller raises the gain of the first variable gain block, the controller lowers the gain of the second variable gain block, while when the controller lowers the gain of the first variable gain block, the controller raises the gain of the second variable gain block. | 08-21-2014 |
20140233761 | ELECTRONIC DEVICE AND GAIN CONTROLLING METHOD - An electronic device and a corresponding gain controlling method are provided. The gain controlling method includes the steps of receiving a sound signal, calculating a sound level according to each value of the sound signal in a past period, determining a gain value according to the sound level, using the gain value to amplify the sound signal, and then storing the sound signal. | 08-21-2014 |
20140254830 | ALTERING AUDIO SIGNALS - A system of altering an audio signal presented to a user may include an input configured to receive data indicating a status of an environment outside of an audio device, where the audio device is configured to present an audio signal to a user. The system may also include a detection unit configured to detect a condition based on the received data and an audio altering unit configured to direct altering of the audio signal presented to the user based on the detection of the condition. | 09-11-2014 |
20140254831 | Adaptive Music Playback System - An adaptive music playback system is disclosed. The system includes a composition system that receives information corresponding to user activity levels. The composition system modifies the composition of a song in response to changes in user activity. The modifications are made according to a set of composition rules to facilitate smooth musical transitions. | 09-11-2014 |
20140254832 | VOLUME ADJUSTING SYSTEM AND METHOD - A volume adjusting system, a volume adjusting method adapted for a mobile phone, and a computer-readable storage medium encoded with a computer program are disclosed. The mobile phone comprises a speaker and stores an optimal hearing volume and a volume range. The method includes steps: detecting a volume of a telephone voice of a caller when the mobile phone establishes a call communication link with the caller, determining whether or not the volume is within the volume range for optimal hearing, adjusting the volume to the optimal hearing volume when the volume is not within the volume range, and controlling the speaker to output the optimal hearing volume. Therefore, when the mobile phone makes a call, even though the volume of the caller is low or high, the system adjusts the volume to the optimal hearing volume, and it is comfortable for the user of the mobile phone. | 09-11-2014 |
20140270255 | Digital Gain Control Device and Method for Controlling an Analog Amplifier with a Digital Processor to Prevent Clipping - An amplifier including a first gain level is provided. An analog input is provided to the amplifier. An analog output from the amplifier is converted to a digital output. The digital output is analyzed to detect a level of the analog output exceeding a threshold. A second gain level of the amplifier is set lower than the first gain level. An interface is provided to adjust the threshold. A signature of the analog output is identified. A library comprising a plurality of signatures is provided including the signature of the analog output. The signature of the analog output is compared to the plurality of signatures to determine when to reset the first gain level of the amplifier. The level of the digital signal is monitored to determine when to reset the first gain level of the amplifier. The first and second gain levels are set using a digital signal processor. | 09-18-2014 |
20140294200 | METADATA FOR LOUDNESS AND DYNAMIC RANGE CONTROL - An audio normalization gain value is applied to an audio signal to produce a normalized signal. The normalized signal is processed to compute dynamic range control (DRC) gain values in accordance with a selected one of several pre-defined DRC characteristics. The audio signal is encoded, and the DRC gain values are provided as metadata associated with the encoded audio signal. Several other embodiments are also described and claimed. | 10-02-2014 |
20140294201 | AUDIO CALIBRATION SYSTEM AND METHOD - Described herein is an audio calibration system and method that determines optimum placement and/or operating conditions of speakers for an entertainment system. The system receives an audio signal and transmits the audio signal to a speaker. A recordation of an emanated audio signal from each speaker is made. The system performs a sliding window fast Fourier transform (FFT) comparison of the recorded audio signal temporally and volumetrically with the audio signal. A time delay for each speaker is shifted so that each of the plurality of speakers is synchronized. The individual volumes are then compared for each speaker and are adjusted to collectively match. The method can align and move the convergence point of multiple audio sources. Time differences are measured with respect to a microphone as a function of position. The method uses any audio data and functions with background noise in real time. | 10-02-2014 |
20140294202 | METHOD AND DEVICE FOR COMMUNICATIONS AND FOR BROADCASTING SOUNDS - Device for emitting acoustic signals, includes: an upstream bulb cap; a light source including at least one light-emitting diode, powered by the bulb cap; and an electroacoustic transducer, powered by the bulb cap. A reception unit for receiving radio signals representative of a sound signal emitted by the electroacoustic transducer, receives radio signals emitted by at least one first system utilizing at least the Bluetooth specification. An amplifier amplifies the electrical signal supplied by the reception unit so as to transmit an amplified signal to the electroacoustic transducer. A controller controls the amplifier's gain according to signals received by the signal reception unit. The signal reception unit receives signals representative of a command controlling the light power emitted by the light source and controls the light source according to the control signals. The light source and the amplifier are controlled independently and powered by the upstream bulb cap. | 10-02-2014 |
20140294203 | AUDIO SYSTEM INCLUDING MULTIBAND AUDIO DYNAMICS PROCESSOR - An audio system includes a level controller receiving an input audio signal from an audio medium. The level controller includes a gain adjust module producing an output audio signal based on the input audio signal. A filter arrangement is communicatively coupled to the level controller. The filter arrangement receives the output audio signal and divides the output signal into a plurality of filtered signals. Each of the filtered signals corresponds to a respective frequency band. A multiband dynamics controller is communicatively coupled to the filter arrangement. The multiband dynamics controller receives the filtered signals and applies a respective gain characteristic to each of the filtered signals to thereby produce a plurality of gain adjust signals. The gain adjust signals are combined into a multiband dynamics controller output signal. | 10-02-2014 |
20140301570 | Voice Alarm Amplifier - An emergency message output amplifier includes a plurality of audio output channels. Channels can be combined together to increase output power, and can be isolated from respective output speakers in response to detected faults and then disabled. The functional amplifier can be activated by itself and output current can be monitored to lower the output level enough to enable the amplifier to properly drive the existing load. | 10-09-2014 |
20140321670 | Devices, Methods and Computer Program Products for Controlling Loudness - A method by an electronic device for controlling a frequency response of audio output includes: receiving an audio signal at the device; estimating a sound pressure level of the audio signal based on one or more attributes or settings of the electronic device and/or the audio signal; generating values of an adaptive loudness control curve along a range of frequencies, wherein the adaptive loudness control curve is generated based on a difference between values of an equal loudness curve at the estimated sound pressure level along and values of an equal loudness curve at a reference sound pressure level; filtering the audio signal using values of the adaptive loudness control curve; and controlling output of the filtered audio signal as an audio output having substantially the same loudness along the range of frequencies. | 10-30-2014 |
20140328499 | METHODS AND SYSTEMS FOR CONTROLLING VOLUME - A system includes a plurality of sources configured to provide a plurality of audio channels, and a control system including a processor, and a computer-readable storage media having computer-executable instructions embodied thereon. When executed by the processor, the computer-executable instructions cause the processor to adjust a master volume, identify a channel volume type associated with a first audio channel of the plurality of audio channels, and determine a channel volume associated with the first audio channel based at least partially on at least one of the adjustment of the master volume and the channel volume type. | 11-06-2014 |
20140328500 | METHOD AND AN APPARATUS FOR AUTOMATIC VOLUME LEVELING OF AUDIO SIGNALS - There is provided a method for audio signal adjustment comprising: determining a loudness estimate for at least one frame of an audio signal; determining a level value for the at least one frame based on the loudness estimate; and adjusting the audio signal based on the level value. An apparatus for carrying out the method is also provided. | 11-06-2014 |
20140334643 | DIGITAL MICROPHONE DEVICE WITH EXTENDED DYNAMIC RANGE - The present disclosure refers to a digital microphone device providing a single-bit Pulse Density Modulation PDM output signal. The digital microphone comprises a microphone, arranged to convert an acoustic input signal into an analog electrical signal, and a preamplifier, having a variable gain, arranged to receive the analog electrical signal and to provide an amplified analog electrical signal, depending on the variable gain. The variable gain depends on a gain control signal. The digital microphone further comprises an Analog-to-Digital Converter block, arranged to receive the amplified analog electrical signal and to convert it into a respective digital signal; and a compensation block, arranged to receive the digital signal and to perform a digital operation on such digital signal, on the basis of a compensation signal, to generate a compensated signal. Furthermore, the digital microphone comprises an Automatic Gain Controller block | 11-13-2014 |
20140341395 | AUDIO PROCESSING APPARATUS, REPRODUCTION APPARATUS, AUDIO PROCESSING METHOD AND PROGRAM - The disclosed apparatus extracts particular instrument sounds included in music in real time during music reproduction. The audio processing section | 11-20-2014 |
20140341396 | SMART AUTOMATIC AUDIO RECORDING LEVELER - The invention is directed to systems, methods and computer program products for adjusting audio properties after recording an audio. An exemplary method includes recording audio using an audio capturing system, wherein the recorded audio is associated with an audio level; determining one or more audio signal properties associated with the recorded audio; comparing the audio level with a first predetermined threshold level; and in response to determining the audio level is greater than a first predetermined threshold level, adjusting the recorded audio based at least partially on modifying the one or more determined audio signal properties, wherein the adjusting step is performed a finite time interval following the recording step. | 11-20-2014 |
20140363023 | GAIN CONTROLLING SYSTEM, SOUND PLAYBACK SYSTEM, AND GAIN CONTROLLING METHOD THEREOF - A gain controlling system, a sound playback system, and a gain controlling method thereof are disclosed. The gain controlling system includes a main gain control unit, a sub gain control unit, and a logic control unit. The main gain control unit has a first step-by-step adjusting magnitude; the sub gain control unit has a second step-by-step adjusting magnitude; wherein the second step-by-step adjusting magnitude is smaller than the first step-by-step adjusting magnitude. The logic control unit is used for controlling the main and the sub gain control unit to transform an analog signal into a converted signal according to an adjustment command signal and further determining whether an adjusting magnitude required by the adjustment command signal is larger than a maximum gain range of the sub gain control unit. If yes, the logic control unit controls the main control unit and the sub gain control unit repeatedly. | 12-11-2014 |
20140369525 | VOLUME ADJUSTING METHOD, VOLUME ADJUSTING APPARATUS AND ELECTRONIC DEVICE USING THE SAME - A method, an apparatus for adjusting volume and an electronic device using the same is provided. The method comprises: receiving a volume adjusting signal; detecting a current application scene based on a display content of the electronic device after receiving the volume adjusting signal; displaying a volume adjusting interface, the volume adjusting interface including an volume adjusting area which corresponds to the detected current application scene and a selecting area for indicating whether the volume adjusting signal is applied to all application scenes of the electronic device; adjusting volume based on the volume adjusting signal and applying the adjusted volume to the detected current application scene in case that a selected state of the selecting area is in a first state or applying the adjusted volume to all application scenes of the electronic device in case that the selected state of the selecting area is in a second state. | 12-18-2014 |
20140369526 | METHODS, SYSTEMS, AND MEDIA FOR CONTROLLING AUDIO OF AN HDMI AUDIO SYSTEM - Mechanisms for controlling an audio level of an HDMI audio system are provided, the mechanisms comprising: causing audio data to be presented by an HDMI audio system at a current system volume level; receiving a requested volume level from a second screen device; and controlling a system volume level by: (a) determining the current system volume level; (b) determining a change in volume based on a difference between the requested volume level and the current system volume level; (c) determining a direction in which to cause the system volume level to change; (d) sending a volume control message to the system using a consumer electronic control bus connected to the system indicating whether to increase or decrease the system volume level based on the determined direction of system volume change; and (e) repeating (a)-(d) until the current system volume level reaches a predetermined value. | 12-18-2014 |
20140369527 | DYNAMIC RANGE CONTROL - A computer-implemented method of dynamic range control is disclosed. The method includes at a device with a display, displaying a volume (relative loudness level) control to control the volume level of an output audio signal of the device, the volume control including a dynamic resizable window control for controlling the dynamic range of the output audio signal. A method for adjusting dynamic range of an audio signal is also disclosed. The method includes providing an input audio signal with a first dynamic range, mapping the first dynamic range to a second dynamic range using a transfer function with a linear portion aligned to an average level of the input audio signal, and generating an output audio signal with the second dynamic range from the input audio signal. | 12-18-2014 |
20150010168 | SOUND PRODUCING SYSTEM AND AUDIO AMPLIFYING METHOD THEREOF - The invention provides one sound producing system including a speaker, a driving circuit and an audio controller. The speaker is used for producing an audible sound. The driving circuit is connected to the speaker. The audio controller is configured to receive an input audio signal and pre-amplify the input audio signal with an amplify gain to obtain a pre-amplified audio signal; operate a multiband dynamic range control on the pre-amplified audio signal to obtain an output audio signal; convert the output audio signal to a driving voltage; provide the driving voltage to the speaker through the driving circuit; detect over the driving circuit to obtain at least one excursion parameter to determine an estimated excursion of the speaker in response to the driving voltage; and adjust the amplify gain according to the estimated excursion. | 01-08-2015 |
20150010169 | APPARATUS, SYSTEMS AND METHODS FOR ADJUSTING OUTPUT AUDIO VOLUME BASED ON USER LOCATION - Systems and methods are operable to adjust an output audio volume level of presented audio content that is output as sound from one or more speakers in a media presentation environment. An exemplary embodiment detects movement of a user who is listening to the audio content; increases the output audio volume level when the detected user movement is away from a predefined location in the media presentation environment; and decreases the output audio volume level when the detected user movement is closer to the predefined location in the media presentation environment. | 01-08-2015 |
20150016633 | METHOD AND APPARATUS FOR MULTI-STAGE ADAPTIVE VOLUME CONTROL - A method and apparatus for adaptively controlling the audio output ( | 01-15-2015 |
20150023526 | PROCESS FOR ADJUSTING THE SOUND VOLUME OF A DIGITAL SOUND RECORDING - The present invention relates to a process for adjusting the sound volume of a digital sound recording characterised in that it comprises: a step consisting of determining, in absolute values, for a recording, the maximum amplitude values for sound frequencies audible for the human ear, a step consisting of calculating the possible gain for a specified sound level setting, between the maximum amplitude value determined above and the maximum amplitude value for all frequencies combined, a step consisting of reproducing the recording with a sound card by automatically adjusting the amplification gain level making it possible to obtain a sound level for the recording of a specified value so that it corresponds to the gain calculated for this recording. | 01-22-2015 |
20150043751 | Volume Adjustment Based on User-Defined Curve - In some implementations, a user can specify an audio control curve for an audio track. The audio track can include an audio signal that is sampled at a specified rate. The audio control curve can be used to generate an audio control signal that can be sampled at the same rate as the audio signal. The audio signal and the audio control signal can be combined to produce sample-accurate adjustments of the audio signal. In some implementations, the audio control curve can correspond to gain adjustments for the audio signal. In some implementations, the audio control curve can be used to adjust the amplitude of the audio signal at particular frequencies. The audio control curve can be used to adjust treble or bass levels during the playback of an audio track, for example. | 02-12-2015 |
20150043752 | Audio Signal Output Device and Audio Output System - An audio signal output device ( | 02-12-2015 |
20150043753 | Systems and Methods for Noise Reduction - Systems and methods are provided for noise reduction. An input audio signal is received. A target gain corresponding to a target volume level is determined. One or more increments of gain change are determined to reach the target gain. A first non-zero amplitude in the input audio signal is detected. The first non-zero amplitude is not within a predetermined range of zero amplitude. Upon the detection of the first non-zero amplitude in the input audio signal, the one or more increments of gain change are applied at one or more zero-crossing points of the input audio signal. The input audio signal is within the predetermined range of zero amplitude at the one or more zero-crossing points. An output audio signal is generated. | 02-12-2015 |
20150043754 | System and Method for Non-Destructively Normalizing Loudness of Audio Signals within Portable Devices - Many portable playback devices cannot decode and playback encoded audio content having wide bandwidth and wide dynamic range with consistent loudness and intelligibility unless the encoded audio content has been prepared specially for these devices. This problem can be overcome by including with the encoded content some metadata that specifies a suitable dynamic range compression profile by either absolute values or differential values relative to another known compression profile. A playback device may also adaptively apply gain and limiting to the playback audio Implementations in encoders, in transcoders and in decoders are disclosed. | 02-12-2015 |
20150055801 | ELECTRONIC DEVICE AND METHOD FOR ADJUSTING VOLUME SETTING THEREFROM - In a method for adjusting a volume setting of an electronic device, a current location and a current time are obtained. The method determines whether a volume state file corresponding to the executed application is stored in a storage system. When no volume state file of the executed application is stored, the volume state file is created and a time period corresponding to the current time, the current location and a volume level corresponding to a preset volume setting are recorded as a volume state package into the volume state file. When the volume state file of the executed application is stored in the storage system, the volume setting of the electronic device is adjusted according to a volume level of a matching volume state package matching the current time and the current location in the volume state file. | 02-26-2015 |
20150063599 | CONTROLLING LEVEL OF INDIVIDUAL SPEAKERS IN A CONVERSATION - A headset includes a microphone for receiving a user's voice, a microphone for receiving ambient noise, a receiver for receiving a plurality of voice signals, a speaker for delivering sound to the user's ear and a processing device. The processing device is configured to identify a signal level of a first one of the plurality of voice signals and a second one of the plurality of voice signals, the signal level of the second voice signal being different than the signal level of the first voice signal. The processing device is also configured to measure the ambient noise level and adjust a gain applied to at least one of the first and second voice signals, taking into consideration the ambient noise level. The first and second voice signals are provided to the speaker. | 03-05-2015 |
20150063600 | AUDIO SIGNAL PROCESSING APPARATUS, METHOD, AND PROGRAM - An audio signal processing apparatus that includes a band division section, an analysis section, a gain adjustment amount calculation section, and a gain adjustment section. The band division section is configured to generate a resonance in-band signal by band division on an audio input signal. The analysis section is configured to extract an amount of features from each of the resonance in-band signal and the input signal. The gain adjustment amount calculation section is configured to calculate a gain adjustment amount for a resonance frequency band in the input signal, the gain adjustment amount being calculated based on the amount of features of the resonance in-band signal and the amount of features of the input signal. The gain adjustment section is configured to perform a gain adjustment on the resonance frequency band in the input signal based on the gain adjustment amount. | 03-05-2015 |
20150078585 | SYSTEM AND METHOD FOR LEVELING LOUDNESS VARIATION IN AN AUDIO SIGNAL - Systems and methods for leveling loudness variation in an audio signal are described. Embodiments use both a perceptual leveling algorithm and a standards-based loudness measure together to minimize audio process artifacts and ensure that the measured loudness of the processed audio is close to a required measure, according to a particular standard measurement of loudness. These systems and methods can be used either offline or in real-time. | 03-19-2015 |
20150092959 | Volume Enhancements in a Multi-Zone Media Playback System - Embodiments are described herein that provide numerous volume enhancements to a media playback system, especially for use by a system that contains two or more zone players that are capable of being grouped to form a synchronous audio playback group. | 04-02-2015 |
20150098589 | SYSTEM AND METHOD FOR DYNAMICALLY MIXING AUDIO SIGNALS - A system and method for dynamically mixing audio signals may calculate a signal amplitude for each of two or more audio signals. The signal amplitude may be the absolute value of the audio signal. A signal sum may be calculated using each of the two or more signal amplitudes. Each of the two or more signal amplitudes may be smoothed. The signal sum may be smoothed. The smoothing may be a filter or a leaky integrator. A respective mixing gain may be calculated for each of the two or more audio signals using a respective ratio of each of the two or more smoothed signal amplitudes and the smoothed signal sum. Each of the two or more audio signals may be gain adjusted responsive to the respective mixing gain. Each of the two or more gain adjusted audio signals may be mixed to create an output signal. | 04-09-2015 |
20150104041 | Method and System For a Headset With Integrated Environment Sensors - An electronic device receives audio from an audio source and outputs the audio via speakers of the device. While outputting the audio via the speakers, the device senses its surrounding environment, and adjusts its operation, based on the sensed environment, to alert a listener wearing the device. The adjustment may comprise generation of one or more audio, visual, and/or vibration notifications to the listener using the device. A volume of the audio output via the speakers may be adjusted based on the sensed surrounding environment. The device may detect whether a first condition is present in the surrounding environment, decrease the volume when the first condition is detected in the surrounding environment, and increase the volume when the first condition is not detected in the surrounding environment. | 04-16-2015 |
20150117676 | Devices and Methods for Audio Volume Adjustment - Systems, devices and methods are provided for audio volume adjustment. For example, a noise volume level of current ambient noise and a first volume level of a first current audio signal of a first application are acquired using a sound collecting device. The first volume level and the noise volume level are compared using one or more data processors to obtain a first comparison result. The first volume level is adjusted based on at least information associated with the first comparison result and a reference volume level. | 04-30-2015 |
20150139448 | LOCATION AND ORIENTATION BASED VOLUME CONTROL - A computer manages methods for managing a volume of an audible transmission by, receiving an audible transmission with an associated location and orientation tag, wherein the associated location and orientation tag contains a geographical origin of the audible transmission and a direction of the audible transmission. Determining a location and orientation of a recipient of the audible transmission. Determining a volume level to be associated with the audible transmission based on the determined location and orientation of the recipient with respect to the associated location and orientation tag of the audible transmission. | 05-21-2015 |
20150139449 | LOCATION AND ORIENTATION BASED VOLUME CONTROL - A computer manages methods for managing a volume of an audible transmission by, receiving an audible transmission with an associated location and orientation tag, wherein the associated location and orientation tag contains a geographical origin of the audible transmission and a direction of the audible transmission. Determining a location and orientation of a recipient of the audible transmission. Determining a volume level to be associated with the audible transmission based on the determined location and orientation of the recipient with respect to the associated location and orientation tag of the audible transmission. | 05-21-2015 |
20150146886 | LOUDNESS NORMALIZATION BASED ON USER FEEDBACK - A system for performing loudness normalization based on user feedback is described herein. The system includes a content delivery system and a plurality of audio playback devices. The audio playback devices may communicate volume settings used during playback of pieces of sound program content to the content delivery system. Based on these collected data points, a statistical analysis may be performed to generate loudness adjustment values for pieces of sound program content. The loudness adjustment values may be communicated to the audio playback devices through metadata in associated pieces of sound program content or as separate communications from the content delivery system. An offline version is also described that supports individual loudness normalization adjustments based on a single user's preferences. Under either system, loudness normalization may be achieved based on real world volume settings for individual pieces of sound program content played using various playback configurations. | 05-28-2015 |
20150318833 | MEMS Microphone And Method Of Operating The MEMS Microphone - The present invention concerns a MEMS Microphone ( | 11-05-2015 |
20150326196 | METHOD AND ELECTRONIC DEVICE FOR CONTROLLING VOLUME - An electronic device is provided. The electronic device may output a sound output event through a speaker at an output volume, generate a predicted input waveform based on the output sound event, compare a level of an input sound received via a microphone with a predicted level of the predicted input waveform, determine when a level of the input sound is lower than a threshold value for a predetermined time, and control the output volume of the sound output event when the level of the input sound is lower than the threshold value for the predetermined time. | 11-12-2015 |
20150333719 | Volume Interactions for Connected Playback Devices - Methods and systems are provided for volume interactions for connected playback devices. In one example, a playback device applies a state variable update associated with the playback device. The playback device may be one of a plurality of playback devices, and the state variable update may indicate a limited volume range associated with the playback device. The playback device renders audio content in synchrony with other playback devices in the plurality of playback devices. The playback device receives input data indicating a group volume adjustment for the plurality of playback device and adjusts a playback volume of the playback device based on the group volume adjustment and the limited volume range. | 11-19-2015 |
20150341006 | ADAPTIVE AUDIO CAPTURING - Embodiments of the present invention relate to adaptive audio capturing. A method for adaptive audio capturing is disclosed. The method comprising obtaining an audio signal through an audio channel associated with an audio capturing element on a user terminal; calculating a signal amplitude for the audio channel by processing the obtained audio signal; and determining a functionality of the audio capturing element based on the signal amplitude and a further signal amplitude for at least one further audio channel associated with at least one further audio capturing element on the user terminal. Corresponding apparatus, computer program product, and user terminal are also disclosed. | 11-26-2015 |
20150349738 | APPARATUS AND METHOD FOR DYNAMICALLY ADAPTING A USER VOLUME INPUT RANGE ON AN ELECTRONIC DEVICE - Method of dynamically adapting user volume input range on mobile device having global volume range starts by receiving a volume input selection from a user that is level included in user volume input range. User volume input range is a portion of global volume range. Device's processor then detects ambient noise level surrounding device and adjusts user volume input range from current portion of global volume range to different portion of global volume range based on detected ambient noise level. Volume input selection remains at the same level included in user volume input range after user volume input range is adjusted. Processor may identify sound profile that corresponds to ambient noise level being detected and adjusts user volume input range to a different portion of the global volume range based on identified sound profile. Other embodiments are also described. | 12-03-2015 |
20150372654 | SYSTEM AND METHOD FOR DYNAMICALLY MIXING AUDIO SIGNALS - A system and method for dynamically mixing audio signals may calculate a signal amplitude for each of two or more audio signals. The signal amplitude may be the absolute value of the audio signal. A signal sum may be calculated using each of the two or more signal amplitudes. Each of the two or more signal amplitudes may be smoothed. The signal sum may be smoothed. The smoothing may be a filter or a leaky integrator. A respective mixing gain may be calculated for each of the two or more audio signals using a respective ratio of each of the two or more smoothed signal amplitudes and the smoothed signal sum. Each of the two or more audio signals may be gain adjusted responsive to the respective mixing gain. Each of the two or more gain adjusted audio signals may be mixed to create an output signal. | 12-24-2015 |
20150381130 | REDUCING AUDIO ARTIFACTS IN A SYSTEM FOR ENHANCING DYNAMIC RANGE OF AUDIO SIGNAL PATH - In accordance with embodiments of the present disclosure, an apparatus for providing an output signal to an audio transducer may include a control circuit. The control circuit may be configured to predict, based on a magnitude of a signal indicative of the output signal, an occurrence of an event for changing a selectable digital gain and a selectable analog gain and an audio signal path, and responsive to predicting the occurrence of the event, change, at an approximate time in which a zero crossing of the signal indicative of the output signal occurs, the selectable digital gain and the selectable analog gain. | 12-31-2015 |
20150381131 | Predictive Automatic Gain Control In A Media Processing System - A method and a media processing system (MPS) for automatic gain control are provided. The MPS detects a portion of an input signal corresponding to a measurement window associated with a predetermined time interval and determines a peak value of the input signal during a first predetermined time segment within the measurement window. The MPS determines a number of occurrences of the peak value during a second predetermined time segment within the measurement window and compares the determined number of occurrences of the peak value with a predefined range of occurrences for identifying a speech portion or a non-speech portion of the input signal corresponding to the measurement window. The MPS adjusts a gain corresponding to the first predetermined time segment based on the peak value, upon identifying the speech portion. The MPS iteratively performs the method by shifting the measurement window in steps of the first predetermined time segment. | 12-31-2015 |
20150381132 | COMMUNICATION SYSTEM AND ROBOT - A communication system includes a first microphone, a first loudspeaker, a second loudspeaker, a second microphone, a speaker number determination unit, and a control unit. The first microphone acquires a surrounding voice as a voice signal. The first loudspeaker is provided near the first microphone and outputs a voice. The second loudspeaker acquires the voice signal from the first microphone and outputs the voice signal as a voice. The second microphone acquires a surrounding voice as a voice signal and outputs the voice signal to the first loudspeaker. The speaker number determination unit determines the number of speakers around the first microphone based on the voice signal acquired by the first microphone. The control unit controls a volume of the first loudspeaker based on the determination of the speaker number determination unit. | 12-31-2015 |
20160028306 | CHARGE PUMP CIRCUIT - A bipolar output charge pump circuit having a network of switching paths | 01-28-2016 |
20160036402 | SYSTEM AND METHOD FOR DIGITAL SIGNAL PROCESSING IN DEEP DIVING ENVIRONMENT - The present invention relates to a system for processing of an audio signal relating to a diver in a deep diving environment. The system comprises an input device structured to receive the signal, a pitch changing module configured to change the pitch of the received signal, a plurality of processing modules collectively configured to process the pitch changed signal and produce a processed signal. The present invention is further directed to a method for processing of an audio signal relating to a diver in a deep diving environment. | 02-04-2016 |
20160049915 | VOLUME LEVELER CONTROLLER AND CONTROLLING METHOD - Volume leveler controller and controlling method are disclosed. In one embodiment, A volume leveler controller includes an audio content classifier for identifying the content type of an audio signal in real time; and an adjusting unit for adjusting a volume leveler in a continuous manner based on the content type as identified. The adjusting unit may configured to positively correlate the dynamic gain of the volume leveler with informative content types of the audio signal, and negatively correlate the dynamic gain of the volume leveler with interfering content types of the audio signal. | 02-18-2016 |
20160049916 | Post-Filter Common-Gain Determination - An apparatus for processing an input sound signal, the apparatus including: gain circuitry configured to control a gain based on a plurality of respective sub-signals of the input sound signal; and an amplification apparatus configured to adjust the amplification of all the plurality of amplitudes based on the common gain. | 02-18-2016 |
20160056781 | VOLUME CONTROL - An apparatus can include a processor; memory accessible by the processor; a microphone; an audio signal output; audio circuitry that renders audio signals to the audio signal output; and volume control circuitry that regulates coarseness of increments of a dynamic range of the audio signals responsive to input via the microphone. | 02-25-2016 |
20160056782 | ELECTRONIC DEVICE AND AUDIO OUTPUT CONTROL METHOD THEREOF - A method and an electronic device of controlling an audio output are disclosed. The method includes detecting an audio output device connected to an electronic device, determining a type of audio output device associated with the audio output device connected to the electronic device, determining a first audio output level associated with the audio output device connected to the electronic device based on the type of audio output device and a predetermined audio output level, and outputting an audio output at the first audio output level using the audio output device. | 02-25-2016 |
20160065160 | TERMINAL DEVICE AND AUDIO SIGNAL OUTPUT METHOD THEREOF - Disclosed is a method whereby a terminal device outputs an audio signal. The audio signal output method comprises the steps of: receiving a broadcast signal including a normalized audio signal having a preset audio signal size; detecting program genre information from the broadcast signal; detecting a preferred audio signal size corresponding to the detected program genre information; and adjusting the size of the normalized audio | 03-03-2016 |
20160072464 | METHOD OF OPERATING AN ELECTRONIC DEVICE WITH A MASTER FADER AND A PLURALITY OF SLAVE FADERS - An electronic device with faders. In order to enable a user to readily ascertain which of a plurality of faders belongs to the same group and which one of the faders in the group is a master fader, indicators of all of the faders in the group are lighted when the thus-set master fader in the grouped faders is operated. When the user operates slave faders, the operation is revoked, and only the indicator corresponding to the master fader is lighted or blinked. | 03-10-2016 |
20160072466 | INFORMATION PROCESSING APPARATUS, CONTROL METHOD, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM - An information processing apparatus includes a learning unit which learns sound level manipulation relating to a sound level of a terminal device used by a user based on information relating to the user. The information processing apparatus includes a determination unit which determines a reproduction mode at the time when the terminal device reproduces an audio contained in a content according to a learning result of the learning unit. The information processing apparatus includes a controller which controls an audio contained in the content in the reproduction mode determined by the determination unit. | 03-10-2016 |
20160072468 | Audio Output Balancing - An example implementation involves a first playback device receiving a first audio signal comprising content in a first frequency range to be played by the first playback device. The first playback device determines a first limiting result that represents playback of a second audio signal by a second playback device by applying, to the second audio signal, a pre-determined volume-limiting function that is associated with the second playback device, the second audio signal comprising content in a second frequency range that is different from the first frequency range. The first playback device determines another volume-limiting function based on the first limiting result and applies the determined volume-limiting function to the first audio signal to scale a playback volume of the first audio signal. | 03-10-2016 |
20160079947 | MULTIBAND DUCKER - A multiband ducker is configured to duck a specific range of frequencies within a music signal in proportion to a corresponding range of frequencies within a speech signal, and then combine the ducked music signal with the speech signal for output to a user. In doing so, the multiband ducker separates the music signal into different frequency ranges, which may include low, middle, and high-range frequencies. The multiband ducker then reduces the amplitude of the specific range of frequencies found in the speech signal, typically the mid-range frequencies. When the ducked music signal and the speech signal are combined, the resultant signal includes important frequencies of the original music signal, including low-range and high-range, thereby allowing perception of the music signal to continue in relatively uninterrupted fashion. Additionally, the combined signal also includes the speech signal, allowing for the perception of intelligible speech concordant with the perception of music. | 03-17-2016 |
20160080862 | SYSTEMS AND METHODS FOR REDUCTION OF AUDIO ARTIFACTS IN AN AUDIO SYSTEM WITH DYNAMIC RANGE ENHANCEMENT - In accordance with embodiments of the present disclosure, a control circuit may be configured to, responsive to an indication to switch between gain modes of a signal path having an analog path portion and a digital signal path portion, switch a selectable analog gain of the analog path portion between a first analog gain and a second analog gain, switch a selectable digital gain of the digital signal path portion between a first digital gain and a second digital gain, wherein the product of the first analog gain and the first digital gain is approximately equal to the product of the second analog gain and the second digital gain, and control an analog response of the signal path to reduce the occurrence of audio artifacts present in the output signal as a result of the switch between gain modes of the signal path. | 03-17-2016 |
20160087597 | AUTOMATIC VOLUME CONTROL FOR LAND MOBILE RADIO - The present disclosure provides a radio and method for automatically adjusting, in response to ambient noise, the volume setting of a radio. The radio comprises a microphone for receiving ambient audio and generating a microphone signal; a codec for receiving the microphone signal and generating a processor signal representative of the ambient audio; and processor circuitry operable to receive the processor signal, determine an ambient audio level in response to the processor signal, and determine an adjusted radio volume to generate a radio volume control signal, wherein the adjusted radio volume is determined by calculating a difference between a baseline volume level and ambient audio level and adding a current volume level setting, wherein the codec is also operable to receive the radio volume control signal and generate an output signal to adjust the radio volume setting to maintain a net difference between the adjusted radio volume and ambient audio. | 03-24-2016 |
20160094903 | MICROPHONE COMPRISING A MUTING SWITCH AND RESPIRATION MASK COMPRISING SUCH A MICROPHONE - The present invention relates to a microphone comprising a transducer for converting acoustic or vibratory oscillations into an electric signal; a preamplifier for amplifying the electric signal; and a controllable switch arranged electrically between the transducer and the preamplifier, the switch being adapted to be controlled by a control signal, the preamplifier including an input terminal connected directly to a terminal of the transducer, the microphone being adapted to transmit the amplified electric signal to a power and transmission device. The invention further relates to a mask comprising such a microphone. | 03-31-2016 |
20160103653 | ELECTRONIC DEVICE, METHOD OF CONTROLLING VOLUME OF THE ELECTRONIC DEVICE, AND METHOD OF CONTROLLING THE ELECTRONIC DEVICE - Provided is a method of adjusting volume of an audio signal output from an electronic device, the method including: connecting the electronic device and a mobile terminal; receiving, by the electronic device, at least one of setting information regarding adjusting of the volume of the audio signal and usage history information of the at least one mobile terminal; receiving, by the electronic device, event generation information from the at least one mobile terminal; determining, by the electronic device, a volume adjusting operation to be performed on the audio signal based on the at least one of the setting information and the usage history information, and the event generation information; and adjusting the volume of the audio signal according to the volume adjusting operation. | 04-14-2016 |
20160111087 | AUTOMATIC VOLUME CONTROL BASED ON SPEECH RECOGNITION - An entertainment system suitable for use in a vehicle and configured to control an output volume of the system includes a microphone and a processor. The microphone is configured to detect sound in a cabin of the vehicle, and output a microphone signal indicative of the sound. The processor is configured to determine a difference signal based on a difference between the microphone signal and an output signal corresponding to sound being output by the system, determine if the difference signal corresponds to human speech, and decrease the output volume of the system when the difference signal corresponds to human speech. | 04-21-2016 |
20160142029 | VOLUME CONTROL RATES - A volume controller may maintain a volume mapping including a plurality of zones of volume level, each zone defined according to a range of included volume levels and specifying a volume ramp up control rate and a volume ramp down control rate for adjustment of volume levels within the range, determine, according to the volume mapping based on a current volume level and a direction of a requested volume change, a step value for adjusting the current volume level, and adjust the current volume level according to the step value. | 05-19-2016 |
20160173995 | SYSTEM AND METHOD FOR DYNAMIC RECOVERY OF AUDIO DATA | 06-16-2016 |
20160179460 | INTELLIGENT SAFER MUSIC SYSTEM FOR AN OPERATING ROOM | 06-23-2016 |
20160181998 | AUDIO OUTPUT DEVICE AND CONTROL METHOD | 06-23-2016 |
20160182988 | MICROPHONE WITH SOFT CLIPPING CIRCUIT | 06-23-2016 |
20160191007 | ADAPTIVE LOUDNESS LEVELLING METHOD FOR DIGITAL AUDIO SIGNALS IN FREQUENCY DOMAIN - Embodiments of the present disclosure are directed to techniques for adjusting the amplitude of a digital audio signal in the frequency domain to control the perceived loudness of the audio signal at a desired level. In one embodiment, a method first adjusts the audio signal to a desired loudness level by applying an adaptive wideband gain and thereafter a multi-band compression is applied to further reduce a dynamic range of the audio signal, and noise analysis and temporal masking operations are also performed to provide a pleasant sound for a listener or listeners. | 06-30-2016 |
20160205490 | METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL | 07-14-2016 |
20160253146 | AUDIO DEVICE AND METHOD FOR AUTOMATICALLY ADJUSTING VOLUME THEREOF | 09-01-2016 |
20160254795 | AUTOMATED AUDIO VOLUME STABILIZER | 09-01-2016 |
20170237405 | METHODS, SYSTEMS, AND MEDIA FOR CONTROLLING AUDIO OF AN HDMI AUDIO SYSTEM | 08-17-2017 |
20190149115 | METHODS, SYSTEMS, AND MEDIA FOR CONTROLLING AUDIO OF AN HDMI AUDIO SYSTEM | 05-16-2019 |