Uhle
Christean Uhle, Ilmenau DE
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20090265024 | Device and method for analyzing an information signal - In order to analyze an information signal, a significant short-time spectrum is extracted from the information signal, the means for extracting being configured to extract such short-time spectra which come closer to a specific characteristic than other short-time spectra of the information signal. The short-time spectra extracted are then decomposed into component signals using ICA analysis, a component signal spectrum representing a profile spectrum of a tone source which generates a tone corresponding to the characteristic sought for. From a sequence of short-time spectra of the information signal and from the profile spectra determined, an amplitude envelope is eventually calculated for each profile spectrum, the amplitude envelope indicating how a profile spectrum of a tone source all in all changes over time. The profile spectra and all the amplitude envelopes associated therewith provide a description of the information signal which may be evaluated further, for example for transcription purposes in the case of a music signal. | 10-22-2009 |
Christian Uhle, Erlangen DE
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20090080666 | APPARATUS AND METHOD FOR EXTRACTING AN AMBIENT SIGNAL IN AN APPARATUS AND METHOD FOR OBTAINING WEIGHTING COEFFICIENTS FOR EXTRACTING AN AMBIENT SIGNAL AND COMPUTER PROGRAM - An apparatus for extracting an ambient signal from an input audio signal comprises a gain-value determinator configured to determine a sequence of time-varying ambient signal gain values for a given frequency band of the time-frequency distribution of the input audio signal in dependence on the input audio signal. The apparatus comprises a weighter configured to weight one of the sub-band signals representing the given frequency band of the time-frequency-domain representation with the time-varying gain values, to obtain a weighted sub-band signal. The gain-value determinator is configured to obtain one or more quantitative feature-values describing one or more features of the input audio signal and to provide the gain-value as a function of the one or more quantitative feature values such that the gain values are quantitatively dependent on the quantitative values. The gain value determinator is configured to determine the gain values such that ambience components are emphasized over non-ambience components in the weighted sub-band signal. | 03-26-2009 |
20100030563 | APPARATUS AND METHOD FOR GENERATING AN AMBIENT SIGNAL FROM AN AUDIO SIGNAL, APPARATUS AND METHOD FOR DERIVING A MULTI-CHANNEL AUDIO SIGNAL FROM AN AUDIO SIGNAL AND COMPUTER PROGRAM - An apparatus for generating an ambient signal from an audio signal includes a compressor for lossy compression of a representation of the audio signal so as to obtain a compressed representation of the audio signal describing a compressed audio signal. The apparatus for generating the ambient signal further includes a calculator for calculating a difference between the compressed representation of the audio signal and the representation of the audio signal so as to obtain a discrimination representation. The apparatus further includes a provider for providing the ambient signal using the discrimination representation. An apparatus for deriving a multi-channel audio signal from an audio signal includes an apparatus for generating an ambient signal from an audio signal, an apparatus for providing the audio signal as a front-loudspeaker signal and an apparatus for providing the ambient signal as a back-loudspeaker signal. | 02-04-2010 |
Christian Uhle, Ursensolien DE
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20160037283 | APPARATUS AND METHOD FOR CENTER SIGNAL SCALING AND STEREOPHONIC ENHANCEMENT BASED ON A SIGNAL-TO-DOWNMIX RATIO - An apparatus for generating a modified audio signal having two or more modified audio channels from an audio input signal comprising two or more audio input channels is provided. The apparatus has an information generator for generating signal-to-downmix information. The information generator is adapted to generate signal information by combining a spectral value of each of the two or more audio input channels in a first way. The information generator is adapted to generate downmix information by combining the spectral value of each of the two or more audio input channels in a second way being different from the first way. Furthermore, the information generator is adapted to combine the signal information and the downmix information to obtain signal-to-downmix information. The apparatus has a signal attenuator for attenuating the two or more audio input channels depending on the signal-to-downmix information to obtain the two or more modified audio channels. | 02-04-2016 |
Christian Uhle, Nurnberg DE
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20140119545 | METHOD AND APPARATUS FOR DECOMPOSING A STEREO RECORDING USING FREQUENCY-DOMAIN PROCESSING EMPLOYING A SPECTRAL WEIGHTS GENERATOR - An apparatus for generating a stereo side signal having a first side channel and a second side channel from a stereo input signal having a first input channel and a second input channel is provided. The apparatus has a modification information generator for generating modification information based on mid-side information. Furthermore, the apparatus has a signal manipulator being adapted to manipulate the first input channel based on the modification information to obtain the first side channel and being adapted to manipulate the second input channel based on the modification information to obtain the second side channel. The modification information generator has a spectral weights generator for generating the modification information by generating a first spectral weighting factor based on a mono mid signal and on a mono side signal of the stereo input signal. | 05-01-2014 |
Christian Uhle, Nuernberg US
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20140072126 | APPARATUS AND METHOD FOR DETERMINING A MEASURE FOR A PERCEIVED LEVEL OF REVERBERATION, AUDIO PROCESSOR AND METHOD FOR PROCESSING A SIGNAL - An apparatus for determining a measure for a perceived level of reverberation in a mix signal consisting of a direct signal component and a reverberation signal component, has a loudness model processor having a perceptual filter stage for filtering the dry signal component the reverberation signal component or the mix signal, wherein the perceptual filter stage is configured for modeling an auditory perception mechanism of an entity to obtain a filtered direct signal, a filtered reverberation signal or a filtered mix signal. The apparatus furthermore has a loudness estimator for estimating a first loudness measure using the filtered direct signal and for estimating a second loudness measure using the filtered reverberation signal or the filtered mix signal, where the filtered mix signal is derived from a superposition of the direct signal component and the reverberation signal component. The apparatus furthermore has a combiner for combining the first and the second loudness measures to obtain a measure for the perceived level of reverberation. | 03-13-2014 |
Christian Uhle, Nuernberg DE
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20100232619 | DEVICE AND METHOD FOR GENERATING A MULTI-CHANNEL SIGNAL INCLUDING SPEECH SIGNAL PROCESSING - In order to generate a multi-channel signal having a number of output channels greater than a number of input channels, a mixer is used for upmixing the input signal to form at least a direct channel signal and at least an ambience channel signal. A speech detector is provided for detecting a section of the input signal, the direct channel signal or the ambience channel signal in which speech portions occur. Based on this detection, a signal modifier modifies the input signal or the ambience channel signal in order to attenuate speech portions in the ambience channel signal, whereas such speech portions in the direct channel signal are attenuated to a lesser extent or not at all. A loudspeaker signal outputter then maps the direct channel signals and the ambience channel signals to loudspeaker signals which are associated to a defined reproduction scheme, such as, for example, a 5.1 scheme. | 09-16-2010 |
20110191101 | Apparatus and Method for Processing an Audio Signal for Speech Enhancement Using a Feature Extraction - An apparatus for processing an audio signal to obtain control information for a speech enhancement filter has a feature extractor for extracting at least one feature per frequency band of a plurality of frequency bands of a short-time spectral representation of a plurality of short-time spectral representations, where the at least one feature represents a spectral shape of the short-time spectral representation in the frequency band. The apparatus additionally has a feature combiner for combining the at least one feature for each frequency band using combination parameters to obtain the control information for the speech enhancement filter for a time portion of the audio signal. The feature combiner can use a neural network regression method, which is based on combination parameters determined in a training phase for the neural network. | 08-04-2011 |
20130046546 | APPARATUS AND METHOD FOR MODIFYING AN INPUT AUDIO SIGNAL - An apparatus for modifying an input audio signal has an excitation determiner, a storage device and a signal modifier. The excitation determiner determines a value of an excitation parameter of a subband of a plurality of subbands of the input audio signal based on an energy content of the subband. Further, the storage device stores a lookup table containing a plurality of spectral weighting factors. A spectral weighting factor of the plurality of spectral weighting factors is associated to a predefined value of the excitation parameter and a subband of the plurality of subbands. The storage device provides a spectral weighting factor corresponding to the determined value of the excitation parameter and corresponding to the subband, the value of the excitation parameter is determined for. Further, the signal modifier modifies a content of the subband of the audio signal, the value of the excitation parameter is determined for, based on the provided spectral weighting factor to provide a modified subband. | 02-21-2013 |
20140037111 | SEMANTIC AUDIO TRACK MIXER - An audio mixer for mixing a plurality of audio tracks to a mixture signal has a semantic command interpreter for receiving a semantic mixing command and for deriving a plurality of mixing parameters for the plurality of audio tracks from the semantic mixing command; an audio track processor for processing the plurality of audio tracks in accordance with the plurality of mixing parameters; and an audio track combiner for combining the plurality of audio tracks processed by the audio track processor into the mixture signal. A corresponding method has: receiving a semantic mixing command; deriving a plurality of mixing parameters for the plurality of audio tracks from the semantic mixing command; processing the plurality of audio tracks in accordance with the plurality of mixing parameters; and combining the plurality of audio tracks resulting from the processing of the plurality of audio tracks to form the mixture signal. | 02-06-2014 |
20140072124 | APPARATUS AND METHOD AND COMPUTER PROGRAM FOR GENERATING A STEREO OUTPUT SIGNAL FOR PROVIING ADDITIONAL OUTPUT CHANNELS - An apparatus for generating a stereo output signal includes a manipulation information generator being adapted to generate manipulation information depending on a first signal indication value of a first input channel and on a second signal indication value of a second input channel, and a manipulator for manipulating a combination signal based on the manipulation information to obtain a first manipulated signal as a first output channel and a second manipulated signal as a second output channel. The combination signal is a signal derived by combining the first input channel and the second input channel. Furthermore, the manipulator is configured for manipulating the combination signal in a first manner, when the first signal indication value is in a first relation to the second signal indication value, or in a different second manner, when the first signal indication value is in a different second relation to the second signal indication value. | 03-13-2014 |
20150380002 | APPARATUS AND METHOD FOR MULTICHANNEL DIRECT-AMBIENT DECOMPOSTION FOR AUDIO SIGNAL PROCESSING - An apparatus for generating one or more audio output channel signals depending on two or more audio input channel signals is provided. Each of the two or more audio input channel signals comprises direct signal portions and ambient signal portions. The apparatus comprises a filter determination unit for determining a filter by estimating first power spectral density information and by estimating second power spectral density information. Moreover, the apparatus comprises a signal processor for generating the one or more audio output channel signals by applying the filter on the two or more audio input channel signals. The first power spectral density information indicates power spectral density information on the two or more audio input channel signals, and the second power spectral density information indicates power spectral density information on the ambient signal portions of the two or more audio input channel signals. | 12-31-2015 |
Jörg Uhle, Limbach-Oberts DE
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20100109636 | Measuring apparatus and method for detecting moisture at a measurement voltage input of the measuring apparatus - A measuring apparatus having a measurement voltage input with at least one input contact for an input voltage of a measuring element and a method for detecting moisture on the measurement voltage input of such a measuring apparatus are provided, wherein the measuring apparatus includes a supplemental voltage source, which delivers at least one supplemental voltage and is connected with a supplemental contact arranged in the region of the at least one input contact. | 05-06-2010 |
Jörg Uhle, Limbach-Oberts DE
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20100109636 | Measuring apparatus and method for detecting moisture at a measurement voltage input of the measuring apparatus - A measuring apparatus having a measurement voltage input with at least one input contact for an input voltage of a measuring element and a method for detecting moisture on the measurement voltage input of such a measuring apparatus are provided, wherein the measuring apparatus includes a supplemental voltage source, which delivers at least one supplemental voltage and is connected with a supplemental contact arranged in the region of the at least one input contact. | 05-06-2010 |
Jörg Uhle, Limbach-Oberfrohna DE
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20100281987 | Device for monitoring one or more process variables - A device for determining or monitoring one or more physical and/or chemical, process variables and having a vibration sensor comprising, a plug-in element and a socket element, which are releasably connected by a pluggable connection and which communicate with one another via an interface, wherein, in the plug-in element or the socket element, a transducer is provided for determining or monitoring a process variable, and wherein the element not having the transducer has the vibration sensor, and the element having the vibration sensor is connectable with a superordinated unit. | 11-11-2010 |
20110072913 | Apparatus for determining a process variable of a liquid in a process plant - The invention relates to an apparatus for determining a physical or chemical process variable of a liquid in a process plant having at least one pipeline ( | 03-31-2011 |
Jörg Uhle, Limbach-Oberfrohna DE
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20100281987 | Device for monitoring one or more process variables - A device for determining or monitoring one or more physical and/or chemical, process variables and having a vibration sensor comprising, a plug-in element and a socket element, which are releasably connected by a pluggable connection and which communicate with one another via an interface, wherein, in the plug-in element or the socket element, a transducer is provided for determining or monitoring a process variable, and wherein the element not having the transducer has the vibration sensor, and the element having the vibration sensor is connectable with a superordinated unit. | 11-11-2010 |
20110072913 | Apparatus for determining a process variable of a liquid in a process plant - The invention relates to an apparatus for determining a physical or chemical process variable of a liquid in a process plant having at least one pipeline ( | 03-31-2011 |
20140151223 | Sensor for Registering an Analyte Concentration - A sensor for registering analyte concentration includes: a housing; arranged within the housing, a sensor element, which has a front surface pressed toward a housing wall of the housing, and the sensor element has at least one contact element for electrical contacting accommodated within the housing, an inner electrolyte, which is in contact with a medium surrounding the housing via an electrochemical, liquid junction arranged in a housing wall, and a reference electrode extending into the inner electrolyte, wherein there is arranged within the housing a flexible circuit card, which includes at least a first conductive trace, which is connected with the at least one contact element of the sensor element, and at least a second conductive trace, which serves as potential sensing element of the reference electrode. | 06-05-2014 |
Matthias Uhle, Leutenbach DE
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20150144711 | FRAGRANCE DISCHARGE DEVICE - A fragrance discharge device for discharging at least one fragrance, having a housing through which air can flow, having at least one fragrance cartridge arranged therein, wherein a drawer is provided so it is displaceable in the housing, for accommodating and holding at least one fragrance cartridge, wherein the drawer can be pulled at least partially out of the housing to replace the at least one fragrance cartridge, wherein the fragrance cartridge is connectable to the drawer via a magnetic force. | 05-28-2015 |
Shannon Uhle, Cocoa Beach, FL US
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20110181034 | NURSING TRACKING STICKER - A nursing tracking sticker is placed on the outside of a nursing pad. The sticker is shaped to conform to the outside of the pad without interfering with the use of the pad or the ability of the pad to absorb any leaking breast milk. The sticker provides an easy way for mothers to track and organize their baby's feeding schedule and is easily carried with the mother at all times. | 07-28-2011 |