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BRPI0509113A - codificador de multicanal, método para codificar sinais de entrada, conteúdo de dados codificados, portador de dados, e, decodificador operável para decodificar dados de saìda codificados - Google Patents

codificador de multicanal, método para codificar sinais de entrada, conteúdo de dados codificados, portador de dados, e, decodificador operável para decodificar dados de saìda codificados

Info

Publication number
BRPI0509113A
BRPI0509113A BRPI0509113-6A BRPI0509113A BRPI0509113A BR PI0509113 A BRPI0509113 A BR PI0509113A BR PI0509113 A BRPI0509113 A BR PI0509113A BR PI0509113 A BRPI0509113 A BR PI0509113A
Authority
BR
Brazil
Prior art keywords
data
input signals
channels
encoder
encoded
Prior art date
Application number
BRPI0509113-6A
Other languages
English (en)
Inventor
Dirk Jeroen Breebaart
Erik Gosuinus Petrus Schuijers
Gerard Herman Hotho
Machiel Willem Van Loon
Original Assignee
Koninkl Philips Electronics Nv
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
Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of BRPI0509113A publication Critical patent/BRPI0509113A/pt
Publication of BRPI0509113B1 publication Critical patent/BRPI0509113B1/pt
Publication of BRPI0509113B8 publication Critical patent/BRPI0509113B8/pt

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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 TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Error Detection And Correction (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

CODIFICADOR DE MULTICANAL, MéTODO PARA CODIFICAR SINAIS DE ENTRADA, CONEúDO DE DADOS CODIFICADOS, PORTADOR DE DADOS, E, DECODIFICADOR OPERáVEL PARA DECODIFICAR DADOS DE SAìDA CODIFICADOS é descrito um codificador de multicanal (10; 600) para processar sinais de entrada levados em N canais de entrada para gerar sinais de saída correspondentes levados em M canais de saída junto com dados paramétricos complementares; M e N são inteiros em que N > M. O codificador (10; 600) inclui um misturador descendente para misturar descendentemente os sinais de entrada para gerar os sinais de saída correspondentes, o codificador também incluindo um analisador para processar os sinais de entrada para gerar os dados de parâmetro, ditos dados paramétricos descrevendo diferenças mútuas entre os N canais de sinal de entrada para permitir regeneração durante decodificar um ou mais dos N canais de sinais de entrada dos M canais de sinais de saída. Tal codificador (10; 600) é capaz de prover codificação de dados altamente eficiente e também de ser de compatibilidade reversa com decodificadores relativamente mais simples tendo menos que N canais de saída de decodificação. A invenção também relaciona-se a decodificadores (800) compatíveis com um tal codificador de multicanal (10; 600).
BRPI0509113A 2004-04-05 2005-03-25 codificador de multicanal, método para codificar sinais de entrada, conteúdo de dados codificados, portador de dados, e, decodificador operável para decodificar dados de saída codificados BRPI0509113B8 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP04101405 2004-04-05
EP04101405.1 2004-04-05
EP04102863.0 2004-06-22
EP04102863 2004-06-22
PCT/IB2005/051037 WO2005098821A2 (en) 2004-04-05 2005-03-25 Multi-channel encoder

Publications (3)

Publication Number Publication Date
BRPI0509113A true BRPI0509113A (pt) 2007-08-28
BRPI0509113B1 BRPI0509113B1 (pt) 2018-08-14
BRPI0509113B8 BRPI0509113B8 (pt) 2018-10-30

Family

ID=34962299

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0509113A BRPI0509113B8 (pt) 2004-04-05 2005-03-25 codificador de multicanal, método para codificar sinais de entrada, conteúdo de dados codificados, portador de dados, e, decodificador operável para decodificar dados de saída codificados

Country Status (14)

Country Link
US (1) US7602922B2 (pt)
EP (1) EP1735774B1 (pt)
JP (2) JP5032977B2 (pt)
KR (1) KR101158698B1 (pt)
CN (1) CN102122509B (pt)
AT (1) ATE395686T1 (pt)
BR (1) BRPI0509113B8 (pt)
DE (1) DE602005006777D1 (pt)
ES (1) ES2307160T3 (pt)
MX (1) MXPA06011361A (pt)
PL (1) PL1735774T3 (pt)
RU (1) RU2390857C2 (pt)
TW (1) TWI393119B (pt)
WO (1) WO2005098821A2 (pt)

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7240001B2 (en) 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
US6934677B2 (en) 2001-12-14 2005-08-23 Microsoft Corporation Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
US7502743B2 (en) 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
US7460990B2 (en) 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
ES2426917T3 (es) 2004-04-05 2013-10-25 Koninklijke Philips N.V. Aparato codificador, aparato decodificador, sus métodos y sistema de audio asociado
US8793125B2 (en) * 2004-07-14 2014-07-29 Koninklijke Philips Electronics N.V. Method and device for decorrelation and upmixing of audio channels
JP4887288B2 (ja) * 2005-03-25 2012-02-29 パナソニック株式会社 音声符号化装置および音声符号化方法
US7742913B2 (en) * 2005-10-24 2010-06-22 Lg Electronics Inc. Removing time delays in signal paths
KR100888474B1 (ko) * 2005-11-21 2009-03-12 삼성전자주식회사 멀티채널 오디오 신호의 부호화/복호화 장치 및 방법
WO2007083934A1 (en) * 2006-01-18 2007-07-26 Lg Electronics Inc. Apparatus and method for encoding and decoding signal
US7831434B2 (en) * 2006-01-20 2010-11-09 Microsoft Corporation Complex-transform channel coding with extended-band frequency coding
US7953604B2 (en) 2006-01-20 2011-05-31 Microsoft Corporation Shape and scale parameters for extended-band frequency coding
US8190425B2 (en) * 2006-01-20 2012-05-29 Microsoft Corporation Complex cross-correlation parameters for multi-channel audio
BRPI0706488A2 (pt) 2006-02-23 2011-03-29 Lg Electronics Inc método e aparelho para processar sinal de áudio
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
US8600740B2 (en) 2008-01-28 2013-12-03 Qualcomm Incorporated Systems, methods and apparatus for context descriptor transmission
RU2486609C2 (ru) * 2008-06-19 2013-06-27 Панасоник Корпорейшн Квантователь, кодер и их способы
KR101428487B1 (ko) * 2008-07-11 2014-08-08 삼성전자주식회사 멀티 채널 부호화 및 복호화 방법 및 장치
WO2010036062A2 (en) * 2008-09-25 2010-04-01 Lg Electronics Inc. A method and an apparatus for processing a signal
US8346379B2 (en) 2008-09-25 2013-01-01 Lg Electronics Inc. Method and an apparatus for processing a signal
KR101108060B1 (ko) * 2008-09-25 2012-01-25 엘지전자 주식회사 신호 처리 방법 및 이의 장치
EP2169664A3 (en) * 2008-09-25 2010-04-07 LG Electronics Inc. A method and an apparatus for processing a signal
US9330671B2 (en) * 2008-10-10 2016-05-03 Telefonaktiebolaget L M Ericsson (Publ) Energy conservative multi-channel audio coding
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
US8000485B2 (en) * 2009-06-01 2011-08-16 Dts, Inc. Virtual audio processing for loudspeaker or headphone playback
KR101710113B1 (ko) * 2009-10-23 2017-02-27 삼성전자주식회사 위상 정보와 잔여 신호를 이용한 부호화／복호화 장치 및 방법
EP2323130A1 (en) 2009-11-12 2011-05-18 Koninklijke Philips Electronics N.V. Parametric encoding and decoding
CN102714036B (zh) 2009-12-28 2014-01-22 松下电器产业株式会社 语音编码装置和语音编码方法
EP2369861B1 (en) * 2010-03-25 2016-07-27 Nxp B.V. Multi-channel audio signal processing
JP5604933B2 (ja) * 2010-03-30 2014-10-15 富士通株式会社 ダウンミクス装置およびダウンミクス方法
BR112013004365B1 (pt) 2010-08-25 2021-01-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. aparelho e método para decodificar um sinal
CN103262158B (zh) 2010-09-28 2015-07-29 华为技术有限公司 对解码的多声道音频信号或立体声信号进行后处理的装置和方法
KR20120132342A (ko) * 2011-05-25 2012-12-05 삼성전자주식회사 보컬 신호 제거 장치 및 방법
US9478228B2 (en) * 2012-07-09 2016-10-25 Koninklijke Philips N.V. Encoding and decoding of audio signals
US9288603B2 (en) * 2012-07-15 2016-03-15 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for backward-compatible audio coding
US9473870B2 (en) 2012-07-16 2016-10-18 Qualcomm Incorporated Loudspeaker position compensation with 3D-audio hierarchical coding
KR20140016780A (ko) * 2012-07-31 2014-02-10 인텔렉추얼디스커버리 주식회사 오디오 신호 처리 방법 및 장치
EP2830333A1 (en) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Multi-channel decorrelator, multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a premix of decorrelator input signals
ES2653975T3 (es) 2013-07-22 2018-02-09 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Decodificador de audio multicanal, codificador de audio multicanal, procedimientos, programa informático y representación de audio codificada mediante el uso de una decorrelación de señales de audio renderizadas
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
KR102063790B1 (ko) * 2014-09-24 2020-01-09 한국전자통신연구원 데이터 전송을 위한 도선의 수를 감소시키기 위한 데이터 전송 장치 및 그 방법
CN105897738B (zh) * 2016-05-20 2017-02-22 电子科技大学 一种用于多信道环境的实时流编码方法
ES3042934T3 (en) 2016-11-08 2025-11-24 Fraunhofer Ges Forschung Downmixer and method for downmixing at least two channels and multichannel encoder and multichannel decoder
KR102615903B1 (ko) 2017-04-28 2023-12-19 디티에스, 인코포레이티드 오디오 코더 윈도우 및 변환 구현들
CN108009347B (zh) * 2017-11-30 2021-06-22 南京理工大学 基于同步压缩联合改进广义s变换的时频分析方法
WO2020216459A1 (en) * 2019-04-23 2020-10-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method or computer program for generating an output downmix representation

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3449715B2 (ja) * 1991-01-08 2003-09-22 ドルビー・ラボラトリーズ・ライセンシング・コーポレーション 多次元音場のための符号器・復号器
DE4236989C2 (de) * 1992-11-02 1994-11-17 Fraunhofer Ges Forschung Verfahren zur Übertragung und/oder Speicherung digitaler Signale mehrerer Kanäle
EP0688113A2 (en) * 1994-06-13 1995-12-20 Sony Corporation Method and apparatus for encoding and decoding digital audio signals and apparatus for recording digital audio
WO2004103023A1 (ja) * 1995-09-26 2004-11-25 Ikuichiro Kinoshita 仮想音像定位用伝達関数表作成方法、その伝達関数表を記録した記憶媒体及びそれを用いた音響信号編集方法
US5857026A (en) * 1996-03-26 1999-01-05 Scheiber; Peter Space-mapping sound system
US5870480A (en) * 1996-07-19 1999-02-09 Lexicon Multichannel active matrix encoder and decoder with maximum lateral separation
US5890125A (en) * 1997-07-16 1999-03-30 Dolby Laboratories Licensing Corporation Method and apparatus for encoding and decoding multiple audio channels at low bit rates using adaptive selection of encoding method
NZ506840A (en) * 1999-01-07 2004-08-27 Konink Philips Electronics N Efficient coding of side information in a lossless encoder
US6539357B1 (en) * 1999-04-29 2003-03-25 Agere Systems Inc. Technique for parametric coding of a signal containing information
US6480984B1 (en) * 1999-06-23 2002-11-12 Agere Systems Inc. Rate (M/N) code encoder, detector, and decoder for control data
US6208699B1 (en) * 1999-09-01 2001-03-27 Qualcomm Incorporated Method and apparatus for detecting zero rate frames in a communications system
US6970567B1 (en) * 1999-12-03 2005-11-29 Dolby Laboratories Licensing Corporation Method and apparatus for deriving at least one audio signal from two or more input audio signals
US6584438B1 (en) * 2000-04-24 2003-06-24 Qualcomm Incorporated Frame erasure compensation method in a variable rate speech coder
JP2002175097A (ja) * 2000-12-06 2002-06-21 Yamaha Corp 音声信号のエンコード／圧縮装置およびデコード／伸長装置
TW511340B (en) * 2000-12-12 2002-11-21 Elan Microelectronics Corp Method and system for data loss detection and recovery in wireless communication
US20030014579A1 (en) * 2001-07-11 2003-01-16 Motorola, Inc Communication controller and method of transforming information
MXPA03002115A (es) * 2001-07-13 2003-08-26 Matsushita Electric Industrial Co Ltd DISPOSITIVO DE DECODIFICACION Y CODIFICACION DE SEnAL DE AUDIO.
ES2323294T3 (es) * 2002-04-22 2009-07-10 Koninklijke Philips Electronics N.V. Dispositivo de decodificacion con una unidad de decorrelacion.
EP1523862B1 (en) * 2002-07-12 2007-10-31 Koninklijke Philips Electronics N.V. Audio coding
JP3778358B2 (ja) * 2003-05-01 2006-05-24 日本電信電話株式会社 音源分離方法、その装置及びプログラム
US7447317B2 (en) * 2003-10-02 2008-11-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V Compatible multi-channel coding/decoding by weighting the downmix channel
US7394903B2 (en) 2004-01-20 2008-07-01 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Apparatus and method for constructing a multi-channel output signal or for generating a downmix signal
US7805313B2 (en) * 2004-03-04 2010-09-28 Agere Systems Inc. Frequency-based coding of channels in parametric multi-channel coding systems
RU2416129C2 (ru) * 2005-03-30 2011-04-10 Конинклейке Филипс Электроникс Н.В. Масштабируемое многоканальное кодирование звука

Also Published As

Publication number Publication date
EP1735774A2 (en) 2006-12-27
US7602922B2 (en) 2009-10-13
ATE395686T1 (de) 2008-05-15
TW200614150A (en) 2006-05-01
RU2006139048A (ru) 2008-05-20
CN102122509A (zh) 2011-07-13
WO2005098821A3 (en) 2006-03-16
CN102122509B (zh) 2016-03-23
US20070194952A1 (en) 2007-08-23
KR20070001208A (ko) 2007-01-03
WO2005098821A2 (en) 2005-10-20
RU2390857C2 (ru) 2010-05-27
BRPI0509113B1 (pt) 2018-08-14
ES2307160T3 (es) 2008-11-16
JP5032977B2 (ja) 2012-09-26
BRPI0509113B8 (pt) 2018-10-30
JP2007531913A (ja) 2007-11-08
PL1735774T3 (pl) 2008-11-28
KR101158698B1 (ko) 2012-06-22
DE602005006777D1 (de) 2008-06-26
MXPA06011361A (es) 2007-01-16
JP2012191625A (ja) 2012-10-04
TWI393119B (zh) 2013-04-11
JP5311597B2 (ja) 2013-10-09
EP1735774B1 (en) 2008-05-14

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