MX2010004220A - Codificacion de audio usando mezcla descendente. - Google Patents

Codificacion de audio usando mezcla descendente.

Info

Publication number
MX2010004220A
MX2010004220A MX2010004220A MX2010004220A MX2010004220A MX 2010004220 A MX2010004220 A MX 2010004220A MX 2010004220 A MX2010004220 A MX 2010004220A MX 2010004220 A MX2010004220 A MX 2010004220A MX 2010004220 A MX2010004220 A MX 2010004220A
Authority
MX
Mexico
Prior art keywords
signal
audio
type
audio signal
downmix
Prior art date
Application number
MX2010004220A
Other languages
English (en)
Inventor
Juergen Herre
Johannes Hilpert
Andreas Hoelzer
Oliver Hellmuth
Leonid Terentiev
Cornelia Falch
Original Assignee
Fraunhofer Ges Forschung
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40149576&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX2010004220(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2010004220A publication Critical patent/MX2010004220A/es

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/07—Synergistic effects of band splitting and sub-band processing

Abstract

Se describe un descodificador de audio para descodificar una señal de multi-audio-objeto que tiene una señal de audio de un primer tipo y una señal de audio de un segundo tipo codificada en la misma, la señal de multi-audio-objeto consiste de una señal de mezcla descendente (56) e información lateral (58), la información lateral comprende información de nivel (60) de la señal de audio del primer tipo y la señal de audio del segundo tipo en una primera resolución de tiempo/frecuencia predeterminada (42) y una señal residual (62) que especifica valores de nivel residual en una segunda resolución de tiempo/frecuencia predeterminada, el descodificador de audio comprende medios (52) para calcular coeficientes de predicción (64) en base a la información de nivel (60) y medios (54) para mezclar ascendentemente la señal de mezcla descendente (56) en base a los coeficientes de predicción (64) y la señal residual (62) para obtener una primera señal de audio de mezcla ascendente que se aproxima a la señal de audio del primer tipo y/o una segunda señal de audio de mezcla ascendente que se aproxima a la señal de audio del segundo tipo.
MX2010004220A 2007-10-17 2008-10-17 Codificacion de audio usando mezcla descendente. MX2010004220A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US98057107P 2007-10-17 2007-10-17
US99133507P 2007-11-30 2007-11-30
PCT/EP2008/008799 WO2009049895A1 (en) 2007-10-17 2008-10-17 Audio coding using downmix

Publications (1)

Publication Number Publication Date
MX2010004220A true MX2010004220A (es) 2010-06-11

Family

ID=40149576

Family Applications (2)

Application Number Title Priority Date Filing Date
MX2010004138A MX2010004138A (es) 2007-10-17 2008-10-17 Codificacion de audio usando conversion de estereo a multicanal.
MX2010004220A MX2010004220A (es) 2007-10-17 2008-10-17 Codificacion de audio usando mezcla descendente.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
MX2010004138A MX2010004138A (es) 2007-10-17 2008-10-17 Codificacion de audio usando conversion de estereo a multicanal.

Country Status (12)

Country Link
US (4) US8155971B2 (es)
EP (2) EP2076900A1 (es)
JP (2) JP5883561B2 (es)
KR (4) KR101290394B1 (es)
CN (2) CN101821799B (es)
AU (2) AU2008314029B2 (es)
BR (2) BRPI0816556A2 (es)
CA (2) CA2702986C (es)
MX (2) MX2010004138A (es)
RU (2) RU2474887C2 (es)
TW (2) TWI395204B (es)
WO (2) WO2009049896A1 (es)

Families Citing this family (110)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0400998D0 (sv) 2004-04-16 2004-04-16 Cooding Technologies Sweden Ab Method for representing multi-channel audio signals
EP1984915B1 (en) * 2006-02-07 2016-09-07 LG Electronics Inc. Audio signal decoding
US8571875B2 (en) * 2006-10-18 2013-10-29 Samsung Electronics Co., Ltd. Method, medium, and apparatus encoding and/or decoding multichannel audio signals
MX2008012439A (es) * 2006-11-24 2008-10-10 Lg Electronics Inc Metodo de codificacion y decodificacion de señal de audio basada en objetos y aparato para lo mismo.
US8756066B2 (en) * 2007-02-14 2014-06-17 Lg Electronics Inc. Methods and apparatuses for encoding and decoding object-based audio signals
KR101100214B1 (ko) 2007-03-16 2011-12-28 엘지전자 주식회사 오디오 신호 처리 방법 및 장치
KR101422745B1 (ko) * 2007-03-30 2014-07-24 한국전자통신연구원 다채널로 구성된 다객체 오디오 신호의 인코딩 및 디코딩장치 및 방법
KR101290394B1 (ko) * 2007-10-17 2013-07-26 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 다운믹스를 이용한 오디오 코딩
JP2011501230A (ja) * 2007-10-22 2011-01-06 韓國電子通信研究院 マルチオブジェクトオーディオ符号化および復号化方法とその装置
KR101461685B1 (ko) * 2008-03-31 2014-11-19 한국전자통신연구원 다객체 오디오 신호의 부가정보 비트스트림 생성 방법 및 장치
KR101614160B1 (ko) * 2008-07-16 2016-04-20 한국전자통신연구원 포스트 다운믹스 신호를 지원하는 다객체 오디오 부호화 장치 및 복호화 장치
CN102177542B (zh) * 2008-10-10 2013-01-09 艾利森电话股份有限公司 能量保留多通道音频编码
MX2011011399A (es) * 2008-10-17 2012-06-27 Univ Friedrich Alexander Er Aparato para suministrar uno o más parámetros ajustados para un suministro de una representación de señal de mezcla ascendente sobre la base de una representación de señal de mezcla descendete, decodificador de señal de audio, transcodificador de señal de audio, codificador de señal de audio, flujo de bits de audio, método y programa de computación que utiliza información paramétrica relacionada con el objeto.
US8670575B2 (en) 2008-12-05 2014-03-11 Lg Electronics Inc. Method and an apparatus for processing an audio signal
WO2010085083A2 (en) 2009-01-20 2010-07-29 Lg Electronics Inc. An apparatus for processing an audio signal and method thereof
US8255821B2 (en) * 2009-01-28 2012-08-28 Lg Electronics Inc. Method and an apparatus for decoding an audio signal
JP5163545B2 (ja) * 2009-03-05 2013-03-13 富士通株式会社 オーディオ復号装置及びオーディオ復号方法
KR101387902B1 (ko) 2009-06-10 2014-04-22 한국전자통신연구원 다객체 오디오 신호를 부호화하는 방법 및 부호화 장치, 복호화 방법 및 복호화 장치, 그리고 트랜스코딩 방법 및 트랜스코더
CN101930738B (zh) * 2009-06-18 2012-05-23 晨星软件研发(深圳)有限公司 多声道音频信号译码方法与装置
US20100324915A1 (en) * 2009-06-23 2010-12-23 Electronic And Telecommunications Research Institute Encoding and decoding apparatuses for high quality multi-channel audio codec
KR101283783B1 (ko) * 2009-06-23 2013-07-08 한국전자통신연구원 고품질 다채널 오디오 부호화 및 복호화 장치
TWI441164B (zh) 2009-06-24 2014-06-11 Fraunhofer Ges Forschung 音訊信號解碼器、用以將音訊信號解碼之方法、以及運用級聯音訊物件處理級之電腦程式
KR20110018107A (ko) * 2009-08-17 2011-02-23 삼성전자주식회사 레지듀얼 신호 인코딩 및 디코딩 방법 및 장치
RU2576476C2 (ru) 2009-09-29 2016-03-10 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф., Декодер аудиосигнала, кодер аудиосигнала, способ формирования представления сигнала повышающего микширования, способ формирования представления сигнала понижающего микширования, компьютерная программа и бистрим, использующий значение общего параметра межобъектной корреляции
KR101710113B1 (ko) 2009-10-23 2017-02-27 삼성전자주식회사 위상 정보와 잔여 신호를 이용한 부호화／복호화 장치 및 방법
KR20110049068A (ko) * 2009-11-04 2011-05-12 삼성전자주식회사 멀티 채널 오디오 신호의 부호화/복호화 장치 및 방법
BR112012012097B1 (pt) * 2009-11-20 2021-01-05 Fraunhofer - Gesellschaft Zur Foerderung Der Angewandten Ten Forschung E.V. aparelho para prover uma representação de sinal upmix com base na representação de sinal downmix, aparelho para prover um fluxo de bits que representa um sinal de áudio de multicanais, métodos e fluxo de bits representando um sinal de áudio de multicanais utilizando um parâmetro de combinação linear
AU2010332925B2 (en) 2009-12-16 2013-07-11 Dolby International Ab SBR bitstream parameter downmix
CN102792378B (zh) * 2010-01-06 2015-04-29 Lg电子株式会社 处理音频信号的设备及其方法
EP2372703A1 (en) * 2010-03-11 2011-10-05 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Signal processor, window provider, encoded media signal, method for processing a signal and method for providing a window
DK2556504T3 (en) 2010-04-09 2019-02-25 Dolby Int Ab MDCT-BASED COMPLEX PREVIEW Stereo Encoding
US8948403B2 (en) * 2010-08-06 2015-02-03 Samsung Electronics Co., Ltd. Method of processing signal, encoding apparatus thereof, decoding apparatus thereof, and signal processing system
KR101756838B1 (ko) * 2010-10-13 2017-07-11 삼성전자주식회사 다채널 오디오 신호를 다운 믹스하는 방법 및 장치
US20120095729A1 (en) * 2010-10-14 2012-04-19 Electronics And Telecommunications Research Institute Known information compression apparatus and method for separating sound source
DK3319087T3 (da) * 2011-03-10 2019-11-04 Ericsson Telefon Ab L M Fyldning af ikke-kodede subvektorer i transformationskodede audiosignaler
WO2012125855A1 (en) * 2011-03-16 2012-09-20 Dts, Inc. Encoding and reproduction of three dimensional audio soundtracks
EP2523472A1 (en) 2011-05-13 2012-11-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method and computer program for generating a stereo output signal for providing additional output channels
RU2648595C2 (ru) 2011-05-13 2018-03-26 Самсунг Электроникс Ко., Лтд. Распределение битов, кодирование и декодирование аудио
WO2012158705A1 (en) * 2011-05-19 2012-11-22 Dolby Laboratories Licensing Corporation Adaptive audio processing based on forensic detection of media processing history
JP5715514B2 (ja) * 2011-07-04 2015-05-07 日本放送協会 オーディオ信号ミキシング装置およびそのプログラム、ならびに、オーディオ信号復元装置およびそのプログラム
EP2560161A1 (en) 2011-08-17 2013-02-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Optimal mixing matrices and usage of decorrelators in spatial audio processing
CN103050124B (zh) 2011-10-13 2016-03-30 华为终端有限公司 混音方法、装置及系统
EP2751803B1 (en) 2011-11-01 2015-09-16 Koninklijke Philips N.V. Audio object encoding and decoding
WO2013107602A1 (en) * 2012-01-20 2013-07-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for audio encoding and decoding employing sinusoidal substitution
CA2843223A1 (en) * 2012-07-02 2014-01-09 Sony Corporation Decoding device, decoding method, encoding device, encoding method, and program
JP6231093B2 (ja) * 2012-07-09 2017-11-15 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． オーディオ信号の符号化及び復号
US9190065B2 (en) 2012-07-15 2015-11-17 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for three-dimensional audio coding using basis function coefficients
US9761229B2 (en) 2012-07-20 2017-09-12 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for audio object clustering
US9479886B2 (en) 2012-07-20 2016-10-25 Qualcomm Incorporated Scalable downmix design with feedback for object-based surround codec
JP5949270B2 (ja) * 2012-07-24 2016-07-06 富士通株式会社 オーディオ復号装置、オーディオ復号方法、オーディオ復号用コンピュータプログラム
CN104541524B (zh) 2012-07-31 2017-03-08 英迪股份有限公司 一种用于处理音频信号的方法和设备
US9489954B2 (en) 2012-08-07 2016-11-08 Dolby Laboratories Licensing Corporation Encoding and rendering of object based audio indicative of game audio content
JP6186435B2 (ja) * 2012-08-07 2017-08-23 ドルビー ラボラトリーズ ライセンシング コーポレイション ゲームオーディオコンテンツを示すオブジェクトベースオーディオの符号化及びレンダリング
CA2881065C (en) * 2012-08-10 2020-03-10 Thorsten Kastner Encoder, decoder, system and method employing a residual concept for parametric audio object coding
KR20140027831A (ko) * 2012-08-27 2014-03-07 삼성전자주식회사 오디오 신호 전송 장치 및 그의 오디오 신호 전송 방법, 그리고 오디오 신호 수신 장치 및 그의 오디오 소스 추출 방법
EP2717261A1 (en) * 2012-10-05 2014-04-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoder, decoder and methods for backward compatible multi-resolution spatial-audio-object-coding
KR20140046980A (ko) 2012-10-11 2014-04-21 한국전자통신연구원 오디오 데이터 생성 장치 및 방법, 오디오 데이터 재생 장치 및 방법
EP2936485B1 (en) * 2012-12-21 2017-01-04 Dolby Laboratories Licensing Corporation Object clustering for rendering object-based audio content based on perceptual criteria
CN107452392B (zh) * 2013-01-08 2020-09-01 杜比国际公司 临界采样滤波器组中的基于模型的预测
EP2757559A1 (en) * 2013-01-22 2014-07-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for spatial audio object coding employing hidden objects for signal mixture manipulation
WO2014159898A1 (en) 2013-03-29 2014-10-02 Dolby Laboratories Licensing Corporation Methods and apparatuses for generating and using low-resolution preview tracks with high-quality encoded object and multichannel audio signals
EP2804176A1 (en) * 2013-05-13 2014-11-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio object separation from mixture signal using object-specific time/frequency resolutions
JP6248186B2 (ja) * 2013-05-24 2017-12-13 ドルビー・インターナショナル・アーベー オーディオ・エンコードおよびデコード方法、対応するコンピュータ可読媒体ならびに対応するオーディオ・エンコーダおよびデコーダ
US9892737B2 (en) 2013-05-24 2018-02-13 Dolby International Ab Efficient coding of audio scenes comprising audio objects
CA3017077C (en) 2013-05-24 2021-08-17 Dolby International Ab Coding of audio scenes
CN105229733B (zh) 2013-05-24 2019-03-08 杜比国际公司 包括音频对象的音频场景的高效编码
EP3270375B1 (en) * 2013-05-24 2020-01-15 Dolby International AB Reconstruction of audio scenes from a downmix
EP2830047A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for low delay object metadata coding
EP2830051A3 (en) * 2013-07-22 2015-03-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder, audio decoder, methods and computer program using jointly encoded residual signals
EP2830050A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for enhanced spatial audio object coding
EP2830334A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Multi-channel audio decoder, multi-channel audio encoder, methods, computer program and encoded audio representation using a decorrelation of rendered audio signals
EP2830053A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a residual-signal-based adjustment of a contribution of a decorrelated signal
MX361115B (es) 2013-07-22 2018-11-28 Fraunhofer Ges Forschung Descodificador de audio multicanal, codificador de audio multicanal, métodos, programa de computadora y representación de audio codificada usando una decorrelación de señales de audio renderizadas.
EP2830045A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Concept for audio encoding and decoding for audio channels and audio objects
US9812150B2 (en) 2013-08-28 2017-11-07 Accusonus, Inc. Methods and systems for improved signal decomposition
JP6212645B2 (ja) * 2013-09-12 2017-10-11 ドルビー・インターナショナル・アーベー オーディオ・デコード・システムおよびオーディオ・エンコード・システム
CN107134280B (zh) * 2013-09-12 2020-10-23 杜比国际公司 多声道音频内容的编码
TWI774136B (zh) 2013-09-12 2022-08-11 瑞典商杜比國際公司 多聲道音訊系統中之解碼方法、解碼裝置、包含用於執行解碼方法的指令之非暫態電腦可讀取的媒體之電腦程式產品、包含解碼裝置的音訊系統
EP2854133A1 (en) * 2013-09-27 2015-04-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Generation of a downmix signal
KR20160072130A (ko) * 2013-10-02 2016-06-22 슈트로밍스위스 게엠베하 2개 이상의 기본 신호로부터 다채널 신호의 유도
EP3057096B1 (en) * 2013-10-09 2019-04-24 Sony Corporation Encoding device and method, decoding device and method, and program
KR102381216B1 (ko) * 2013-10-21 2022-04-08 돌비 인터네셔널 에이비 오디오 신호들의 파라메트릭 재구성
EP2866227A1 (en) * 2013-10-22 2015-04-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for decoding and encoding a downmix matrix, method for presenting audio content, encoder and decoder for a downmix matrix, audio encoder and audio decoder
WO2015105748A1 (en) 2014-01-09 2015-07-16 Dolby Laboratories Licensing Corporation Spatial error metrics of audio content
US20150264505A1 (en) 2014-03-13 2015-09-17 Accusonus S.A. Wireless exchange of data between devices in live events
US10468036B2 (en) * 2014-04-30 2019-11-05 Accusonus, Inc. Methods and systems for processing and mixing signals using signal decomposition
WO2015150384A1 (en) 2014-04-01 2015-10-08 Dolby International Ab Efficient coding of audio scenes comprising audio objects
CN110970041B (zh) * 2014-07-01 2023-10-20 韩国电子通信研究院 处理多信道音频信号的方法和装置
EP3165007B1 (en) * 2014-07-03 2018-04-25 Dolby Laboratories Licensing Corporation Auxiliary augmentation of soundfields
US9774974B2 (en) * 2014-09-24 2017-09-26 Electronics And Telecommunications Research Institute Audio metadata providing apparatus and method, and multichannel audio data playback apparatus and method to support dynamic format conversion
MX364166B (es) * 2014-10-02 2019-04-15 Dolby Int Ab Método de decodificación y decodificador para mejora del diálogo.
TWI587286B (zh) * 2014-10-31 2017-06-11 杜比國際公司 音頻訊號之解碼和編碼的方法及系統、電腦程式產品、與電腦可讀取媒體
ES2709661T3 (es) * 2014-10-31 2019-04-17 Dolby Int Ab Codificación y decodificación paramétrica de señales de audio multicanal
CN105989851B (zh) 2015-02-15 2021-05-07 杜比实验室特许公司 音频源分离
EP3067885A1 (en) 2015-03-09 2016-09-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding or decoding a multi-channel signal
US10176813B2 (en) 2015-04-17 2019-01-08 Dolby Laboratories Licensing Corporation Audio encoding and rendering with discontinuity compensation
MY186661A (en) * 2015-09-25 2021-08-04 Voiceage Corp Method and system for time domain down mixing a stereo sound signal into primary and secondary channels using detecting an out-of-phase condition of the left and right channels
CA3045847C (en) 2016-11-08 2021-06-15 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Downmixer and method for downmixing at least two channels and multichannel encoder and multichannel decoder
EP3324406A1 (en) 2016-11-17 2018-05-23 Fraunhofer Gesellschaft zur Förderung der Angewand Apparatus and method for decomposing an audio signal using a variable threshold
EP3324407A1 (en) 2016-11-17 2018-05-23 Fraunhofer Gesellschaft zur Förderung der Angewand Apparatus and method for decomposing an audio signal using a ratio as a separation characteristic
US11595774B2 (en) * 2017-05-12 2023-02-28 Microsoft Technology Licensing, Llc Spatializing audio data based on analysis of incoming audio data
SG11202009801VA (en) * 2018-04-05 2020-11-27 Fraunhofer Ges Forschung Apparatus, method or computer program for estimating an inter-channel time difference
CN109451194B (zh) * 2018-09-28 2020-11-24 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） 一种会议混音方法及装置
JP2022506338A (ja) * 2018-11-02 2022-01-17 ドルビー・インターナショナル・アーベー オーディオ・エンコーダおよびオーディオ・デコーダ
JP7092047B2 (ja) * 2019-01-17 2022-06-28 日本電信電話株式会社 符号化復号方法、復号方法、これらの装置及びプログラム
US10779105B1 (en) 2019-05-31 2020-09-15 Apple Inc. Sending notification and multi-channel audio over channel limited link for independent gain control
MX2021015314A (es) * 2019-06-14 2022-02-03 Fraunhofer Ges Forschung Codificacion y decodificacion de parametros.
GB2587614A (en) * 2019-09-26 2021-04-07 Nokia Technologies Oy Audio encoding and audio decoding
CN110739000B (zh) * 2019-10-14 2022-02-01 武汉大学 一种适应于个性化交互系统的音频对象编码方法
CN112740708B (zh) * 2020-05-21 2022-07-22 华为技术有限公司 一种音频数据传输方法及相关装置

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19549621B4 (de) * 1995-10-06 2004-07-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zum Codieren von Audiosignalen
US5912976A (en) * 1996-11-07 1999-06-15 Srs Labs, Inc. Multi-channel audio enhancement system for use in recording and playback and methods for providing same
TW405328B (en) * 1997-04-11 2000-09-11 Matsushita Electric Ind Co Ltd Audio decoding apparatus, signal processing device, sound image localization device, sound image control method, audio signal processing device, and audio signal high-rate reproduction method used for audio visual equipment
US6016473A (en) * 1998-04-07 2000-01-18 Dolby; Ray M. Low bit-rate spatial coding method and system
CA2859333A1 (en) * 1999-04-07 2000-10-12 Dolby Laboratories Licensing Corporation Matrix improvements to lossless encoding and decoding
KR20040030554A (ko) * 2001-03-28 2004-04-09 닛폰고세이가가쿠고교 가부시키가이샤 활성 에너지선 경화형 수지 조성물에 의한 피복방법 및적층체
DE10163827A1 (de) * 2001-12-22 2003-07-03 Degussa Strahlen härtbare Pulverlackzusammensetzungen und deren Verwendung
ES2323294T3 (es) * 2002-04-22 2009-07-10 Koninklijke Philips Electronics N.V. Dispositivo de decodificacion con una unidad de decorrelacion.
US7395210B2 (en) * 2002-11-21 2008-07-01 Microsoft Corporation Progressive to lossless embedded audio coder (PLEAC) with multiple factorization reversible transform
RU2315371C2 (ru) 2002-12-28 2008-01-20 Самсунг Электроникс Ко., Лтд. Способ и устройство для смешивания аудиопотока и носитель информации
DE10328777A1 (de) * 2003-06-25 2005-01-27 Coding Technologies Ab Vorrichtung und Verfahren zum Codieren eines Audiosignals und Vorrichtung und Verfahren zum Decodieren eines codierten Audiosignals
US20050058307A1 (en) * 2003-07-12 2005-03-17 Samsung Electronics Co., Ltd. Method and apparatus for constructing audio stream for mixing, and information storage medium
DE602005022641D1 (de) 2004-03-01 2010-09-09 Dolby Lab Licensing Corp Mehrkanal-Audiodekodierung
JP2005352396A (ja) * 2004-06-14 2005-12-22 Matsushita Electric Ind Co Ltd 音響信号符号化装置および音響信号復号装置
US7317601B2 (en) * 2004-07-29 2008-01-08 United Microelectronics Corp. Electrostatic discharge protection device and circuit thereof
SE0402651D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Advanced methods for interpolation and parameter signalling
SE0402652D0 (sv) 2004-11-02 2004-11-02 Coding Tech Ab Methods for improved performance of prediction based multi- channel reconstruction
KR100682904B1 (ko) * 2004-12-01 2007-02-15 삼성전자주식회사 공간 정보를 이용한 다채널 오디오 신호 처리 장치 및 방법
JP2006197391A (ja) * 2005-01-14 2006-07-27 Toshiba Corp 音声ミクシング処理装置及び音声ミクシング処理方法
US7573912B2 (en) 2005-02-22 2009-08-11 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschunng E.V. Near-transparent or transparent multi-channel encoder/decoder scheme
CN101151659B (zh) 2005-03-30 2014-02-05 皇家飞利浦电子股份有限公司 多通道音频编码器、设备、方法及其解码器、设备和方法
US7751572B2 (en) * 2005-04-15 2010-07-06 Dolby International Ab Adaptive residual audio coding
JP4988717B2 (ja) * 2005-05-26 2012-08-01 エルジー エレクトロニクス インコーポレイティド オーディオ信号のデコーディング方法及び装置
US7539612B2 (en) * 2005-07-15 2009-05-26 Microsoft Corporation Coding and decoding scale factor information
KR20080010980A (ko) * 2006-07-28 2008-01-31 엘지전자 주식회사 부호화/복호화 방법 및 장치.
EP1989704B1 (en) 2006-02-03 2013-10-16 Electronics and Telecommunications Research Institute Method and apparatus for control of randering multiobject or multichannel audio signal using spatial cue
ATE527833T1 (de) 2006-05-04 2011-10-15 Lg Electronics Inc Verbesserung von stereo-audiosignalen mittels neuabmischung
US8504376B2 (en) * 2006-09-29 2013-08-06 Lg Electronics Inc. Methods and apparatuses for encoding and decoding object-based audio signals
DE602007013415D1 (de) * 2006-10-16 2011-05-05 Dolby Sweden Ab Erweiterte codierung und parameterrepräsentation einer mehrkanaligen heruntergemischten objektcodierung
CN101529504B (zh) * 2006-10-16 2012-08-22 弗劳恩霍夫应用研究促进协会 多通道参数转换的装置和方法
KR101290394B1 (ko) * 2007-10-17 2013-07-26 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 다운믹스를 이용한 오디오 코딩

Also Published As

Publication number Publication date
US8538766B2 (en) 2013-09-17
CN101821799B (zh) 2012-11-07
KR20120004547A (ko) 2012-01-12
EP2076900A1 (en) 2009-07-08
RU2452043C2 (ru) 2012-05-27
MX2010004138A (es) 2010-04-30
TW200926143A (en) 2009-06-16
WO2009049896A1 (en) 2009-04-23
JP2011501544A (ja) 2011-01-06
KR101244515B1 (ko) 2013-03-18
TW200926147A (en) 2009-06-16
AU2008314030B2 (en) 2011-05-19
WO2009049895A9 (en) 2009-10-29
US20130138446A1 (en) 2013-05-30
BRPI0816557A2 (pt) 2016-03-01
TWI406267B (zh) 2013-08-21
CN101821799A (zh) 2010-09-01
US20090125313A1 (en) 2009-05-14
BRPI0816557B1 (pt) 2020-02-18
US8280744B2 (en) 2012-10-02
KR20100063119A (ko) 2010-06-10
AU2008314029B2 (en) 2012-02-09
KR101303441B1 (ko) 2013-09-10
CA2701457A1 (en) 2009-04-23
KR20120004546A (ko) 2012-01-12
JP5883561B2 (ja) 2016-03-15
JP5260665B2 (ja) 2013-08-14
KR101290394B1 (ko) 2013-07-26
JP2011501823A (ja) 2011-01-13
CA2702986C (en) 2016-08-16
TWI395204B (zh) 2013-05-01
US8155971B2 (en) 2012-04-10
RU2010112889A (ru) 2011-11-27
CN101849257A (zh) 2010-09-29
CA2702986A1 (en) 2009-04-23
RU2010114875A (ru) 2011-11-27
US20120213376A1 (en) 2012-08-23
CN101849257B (zh) 2016-03-30
KR20100063120A (ko) 2010-06-10
BRPI0816556A2 (pt) 2019-03-06
CA2701457C (en) 2016-05-17
AU2008314030A1 (en) 2009-04-23
US20090125314A1 (en) 2009-05-14
WO2009049896A9 (en) 2011-06-09
RU2474887C2 (ru) 2013-02-10
US8407060B2 (en) 2013-03-26
AU2008314029A1 (en) 2009-04-23
WO2009049896A8 (en) 2010-05-27
WO2009049895A1 (en) 2009-04-23
KR101244545B1 (ko) 2013-03-18
EP2082396A1 (en) 2009-07-29

Similar Documents

Publication Publication Date Title
MX2010004220A (es) Codificacion de audio usando mezcla descendente.
MX2011011399A (es) Aparato para suministrar uno o más parámetros ajustados para un suministro de una representación de señal de mezcla ascendente sobre la base de una representación de señal de mezcla descendete, decodificador de señal de audio, transcodificador de señal de audio, codificador de señal de audio, flujo de bits de audio, método y programa de computación que utiliza información paramétrica relacionada con el objeto.
US7573912B2 (en) Near-transparent or transparent multi-channel encoder/decoder scheme
ATE406651T1 (de) Audiokodierung und audiodekodierung
CA2645911A1 (en) Method for encoding and decoding object-based audio signal and apparatus thereof
MY178139A (en) Audio decoder and method for providing a decoded audio information using an errorconcealment based on a time domain excitation signal
WO2008016935A3 (en) Systems, methods, and apparatus for wideband encoding and decoding of inactive frames
ATE416455T1 (de) Verfahren und vorrichtung zum kodieren und dekodieren von mehrkanaltonsignalen
RU2010152580A (ru) Устройство параметрического стереофонического повышающего микширования, параметрический стереофонический декодер, устройство параметрического стереофонического понижающего микширования, параметрический стереофонический кодер
WO2007007263A3 (en) Audio encoding and decoding
TW200611242A (en) Coding reverberant sound signals
CA2621664A1 (en) Method and apparatus for decoding an audio signal
DE602006015294D1 (de) Mehrkanal-audiocodierung
TW200737738A (en) Apparatus and method for encoding and decoding signal
TW200738038A (en) Audio encoding and decoding
MX2017011185A (es) Decodificador para decodificar una señal de audio codificada y codificador para codificar una señal de audio.
WO2008084427A3 (en) Audio decoder
HK1106606A1 (en) Stereo compatible multi-channel audio coding
HK1132324A1 (en) Method and device for coding transition frames in speech signals
MX2012010439A (es) Decodificador de señales de audio, codificador de señales de audio, metodo para decodificar una señal de audio, metodo para codificar una señal de audio y programa de computacion que utilizan una adaptacion dependiente de la frecuencia de un contexto de codificacion.
WO2011059254A3 (en) An apparatus for processing a signal and method thereof
KR102033985B1 (ko) 공간적 오디오 객체 코딩에 오디오 정보를 적응시키기 위한 장치 및 방법
TW200721112A (en) Method and apparatus for decoding an audio signal
TW200707275A (en) Method and apparatus for audio encoding and decoding
MY187944A (en) Concept for encoding an audio signal and decoding an audio signal using deterministic and noise like information

Legal Events

Date Code Title Description
FG Grant or registration