Patent application number | Description | Published |
20100135510 | APPARATUS FOR GENERATING AND PLAYING OBJECT BASED AUDIO CONTENTS - Disclosed is an object based audio contents generating/playing apparatus. The object based audio contents generating/playing apparatus may include an object audio signal obtaining unit to obtain a plurality of object audio signals by recording a plurality of sound source signals, a recording space information obtaining unit to obtain recording space information with respect to a recording space of the plurality of sound source signals, a sound source location information obtaining unit to obtain sound location information of the plurality of sound source signals, and an encoding unit to generate object based audio contents by encoding at least one of the plurality of object audio signals, the recording space information, and the sound source location information, thereby enabling the object based audio contents to be played using at least one of a WFS scheme and a multi-channel surround scheme regardless of a reproducing environment of the audience. | 06-03-2010 |
20100324915 | ENCODING AND DECODING APPARATUSES FOR HIGH QUALITY MULTI-CHANNEL AUDIO CODEC - Provided is an encoding apparatus for a High Quality Multi-channel Audio Codec (HQMAC) and a decoding apparatus for the HQMAC. The encoding/decoding apparatuses for the HQMAC may perform a High Quality Multi-channel Audio Codec-Channel Based (HQMAC-CB) encoding or an HQMAC-CB decoding in accordance with characteristics of inputted audio signals to provide compatibility with a lower channel. | 12-23-2010 |
20110064249 | METHOD FOR GENERATING AND PLAYING OBJECT-BASED AUDIO CONTENTS AND COMPUTER READABLE RECORDING MEDIUM FOR RECORDING DATA HAVING FILE FORMAT STRUCTURE FOR OBJECT-BASED AUDIO SERVICE - Provided are a method of generating and playing an object-based audio content that may effectively store preset information about an object-based audio content, and a computer-readable recording medium for storing data having a file format structure for an object-based audio service. The method of generating the object-based audio content may include: receiving a plurality of audio objects ( | 03-17-2011 |
20110112829 | APPARATUS AND METHOD FOR ENCODING AND DECODING OF INTEGRATED SPEECH AND AUDIO - Provided are an apparatus and a method for integrally encoding and decoding a speech signal and a audio signal. The encoding apparatus may include: an input signal analyzer to analyze a characteristic of an input signal; a first conversion encoder to convert the input signal to a frequency domain signal, and to encode the input signal when the input signal is a audio characteristic signal; a Linear Predictive Coding (LPC) encoder to perform LPC encoding of the input signal when the input signal is a speech characteristic signal; and a bitstream generator to generate a bitstream using an output signal of the first conversion encoder and an output signal of the LPC encoder. | 05-12-2011 |
20110112842 | METHOD AND APPARATUS FOR EDITING AUDIO OBJECT IN SPATIAL INFORMATION-BASED MULTI-OBJECT AUDIO CODING APPARATUS - Disclosed is an audio object editing apparatus of a multi-object audio coding apparatus. The audio object editing apparatus of the multi-object audio coding apparatus may include an object information extracting unit to receive an object bit stream and to extract object information from the object bit stream, a downmix processing unit to receive a downmix signal, and to control the downmix signal using object editing information and the object information, and a bit stream processing unit to edit the object information according to the object editing information, and to generate a controlled object bit stream based on the edited object information. | 05-12-2011 |
20110119055 | APPARATUS FOR ENCODING AND DECODING OF INTEGRATED SPEECH AND AUDIO - Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream. | 05-19-2011 |
20110119067 | APPARATUS FOR SIGNAL STATE DECISION OF AUDIO SIGNAL - A module capable of appropriately selecting a linear predictive coding (LPC)-based or a code excitation linear prediction (CELP)-based speech or audio encoder and a transform-based audio encoder according to a feature of an input signal is a module that performs as a bridge for overcoming a performance barrier between a conventional LPC-based encoder and an audio encoder. Also, an integral audio encoder that provides consistent audio quality regardless of a type of the input audio signal can be designed based on the module. | 05-19-2011 |
20110166867 | MULTI-OBJECT AUDIO ENCODING AND DECODING APPARATUS SUPPORTING POST DOWN-MIX SIGNAL - A multi-object audio encoding and decoding apparatus supporting a post downmix signal may be provided. The multi-object audio encoding apparatus may include: an object information extraction and downmix generation unit to generate object information and a downmix signal from input object signals; a parameter determination unit to determine a downmix information parameter using the extracted downmix signal and the post downmix signal; and a bitstream generation unit to combine the object information and the downmix information parameter, and to generate an object bitstream. | 07-07-2011 |
20110257981 | LPC RESIDUAL SIGNAL ENCODING/DECODING APPARATUS OF MODIFIED DISCRETE COSINE TRANSFORM (MDCT)-BASED UNIFIED VOICE/AUDIO ENCODING DEVICE - Disclosed is an LPC residual signal encoding/decoding apparatus of an MDCT based unified voice and audio encoding device. The LPC residual signal encoding apparatus analyzes a property of an input signal, selects an encoding method of an LPC filtered signal, and encode the LPC residual signal based on one of a real filterbank, a complex filterbank, and an algebraic code excited linear prediction (ACELP). | 10-20-2011 |
20110261973 | APPARATUS AND METHOD FOR REPRODUCING A SOUND FIELD WITH A LOUDSPEAKER ARRAY CONTROLLED VIA A CONTROL VOLUME - Method and, apparatus for implementing the method, the method comprising determining control signal data for an array of loudspeakers, the control signal data being such as to control the loudspeakers to produce a desired sound field associated with an audio signal, the method comprises determining control signal data for different frequency components of the desired sound field in respect of respective different positions in a listening volume of the loudspeaker array, wherein determination of the control signal data comprises sampling the desired sound field at the surface of a control volume (V). | 10-27-2011 |
20120070021 | APPARATUS FOR REPRODUCTING WAVE FIELD USING LOUDSPEAKER ARRAY AND THE METHOD THEREOF - Provided is an apparatus and method for reproducing a wave field using a loudspeaker array. A loudspeaker array may be configured in front of and behind a listener, and a wave field synthesis rendering and a three-dimensional sound image localization rendering may be performed based on a position of a sound source. | 03-22-2012 |
20120120969 | APPARATUS AND METHOD FOR GENERATING AN MPEG-2 TRANSPORT PACKET HAVING A VARIABLE PACKET LENGTH - Provided is a transport packet generating apparatus that generates a transport packet having a variable length, and the length of the transport packet is indicated by a field included in a header of the transport packet or a synchronization area of the transport packet, the field indicating a length of the transport packet. | 05-17-2012 |
20120209600 | INTEGRATED VOICE/AUDIO ENCODING/DECODING DEVICE AND METHOD WHEREBY THE OVERLAP REGION OF A WINDOW IS ADJUSTED BASED ON THE TRANSITION INTERVAL - A Unified Speech and Audio Codec (USAC) for adjusting an overlap area of a window based on a transition is provided. To increase an encoding efficiency, encoding may be performed by overlapping relatively long windows. Additionally, when a transition is generated between frames, an overlap area of a window may be reduced based on the transition, thereby preventing a noise from occurring due to the transition. | 08-16-2012 |
20130101122 | APPARATUS FOR GENERATING AND PLAYING OBJECT BASED AUDIO CONTENTS - Disclosed is an object based audio contents generating/playing apparatus. The object based audio contents generating/playing apparatus may include an object audio signal obtaining unit to obtain a plurality of object audio signals by recording a plurality of sound source signals, a recording space information obtaining unit to obtain recording space information with respect to a recording space of the plurality of sound source signals, a sound source location information obtaining unit to obtain sound location information of the plurality of sound source signals, and an encoding unit to generate object based audio contents by encoding at least one of the plurality of object audio signals, the recording space information, and the sound source location information, thereby enabling the object based audio contents to be played using at least one of a WFS scheme and a multi-channel surround scheme regardless of a reproducing environment of the audience. | 04-25-2013 |
20150081286 | LPC RESIDUAL SIGNAL ENCODING/DECODING APPARATUS OF MODIFIED DISCRETE COSINE TRANSFORM (MDCT)-BASED UNIFIED VOICE/AUDIO ENCODING DEVICE - Disclosed is an LPC residual signal encoding/decoding apparatus of an MDCT based unified voice and audio encoding device. The LPC residual signal encoding apparatus analyzes a property of an input signal, selects an encoding method of an LPC filtered signal, and encode the LPC residual signal based on one of a real filterbank, a complex filterbank, and an algebraic code excited linear prediction (ACELP). | 03-19-2015 |