BRPI0509110A - método e dispositivo para processar um sinal estéreo, aparelhos codificador e decodificador, e, sistema de áudio - Google Patents

método e dispositivo para processar um sinal estéreo, aparelhos codificador e decodificador, e, sistema de áudio

Info

Publication number
BRPI0509110A
BRPI0509110A BRPI0509110-1A BRPI0509110A BRPI0509110A BR PI0509110 A BRPI0509110 A BR PI0509110A BR PI0509110 A BRPI0509110 A BR PI0509110A BR PI0509110 A BRPI0509110 A BR PI0509110A
Authority
BR
Brazil
Prior art keywords
stereo signal
processing
encoder
audio system
matrix
Prior art date
Application number
BRPI0509110-1A
Other languages
English (en)
Inventor
Machiel Willem Van Loon
Gerard Herman Hotho
Dirk Jeroen Breebaart
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 BRPI0509110A publication Critical patent/BRPI0509110A/pt
Publication of BRPI0509110A8 publication Critical patent/BRPI0509110A8/pt
Publication of BRPI0509110B1 publication Critical patent/BRPI0509110B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
    • 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
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • 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 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

MéTODO E DISPOSITIVO PARA PROCESSAR UM SINAL ESTéREO, APARELHOS CODIFICADOR E DECODIFICADOR, E, SISTEMA DE áUDIO Método para processar um sinal estéreo incluindo: codificar um sinal de áudio de N canais em um sinal estéreo (L~ 0~ R~ 0~) e parâmetros espaciais (w~ 1~, w~ r~), processar o sinal estéreo usando os parâmetros espaciais para gerar um sinal estéreo processado (L~ 0w~, R~ 0w~). A matriz do sinal estéreo processado pode ser descrita como a matriz do sinal estéreo, multiplicada por uma matriz de filtro (H) qual elemento são funções de filtro (H~ 1~, H~ 2~, H~ 3~, H~ 4~) operados com parâmetros espaciais w~ 1~, w~ r~) e uma constante (a). As funções de filtro são invariáveis no tempo e selecionadas de forma que a matriz seja não reversível.
BRPI0509110-1A 2004-04-05 2005-03-30 Método e dispositivo para processar um sinal estéreo, aparelhos codificador e decodificador, e, sistema de áudio BRPI0509110B1 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP04101405 2004-04-05
EP04101405.1 2004-04-05
EP04103367 2004-07-14
EP04103367.1 2004-07-14
PCT/IB2005/051065 WO2005098826A1 (en) 2004-04-05 2005-03-30 Method, device, encoder apparatus, decoder apparatus and audio system

Publications (3)

Publication Number Publication Date
BRPI0509110A true BRPI0509110A (pt) 2007-08-28
BRPI0509110A8 BRPI0509110A8 (pt) 2016-02-10
BRPI0509110B1 BRPI0509110B1 (pt) 2019-07-09

Family

ID=34962191

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0509110-1A BRPI0509110B1 (pt) 2004-04-05 2005-03-30 Método e dispositivo para processar um sinal estéreo, aparelhos codificador e decodificador, e, sistema de áudio

Country Status (12)

Country Link
US (1) US9992599B2 (pt)
EP (1) EP1735779B1 (pt)
JP (1) JP5284638B2 (pt)
KR (1) KR101183862B1 (pt)
CN (1) CN1947172B (pt)
BR (1) BRPI0509110B1 (pt)
ES (1) ES2426917T3 (pt)
MX (1) MXPA06011397A (pt)
PL (1) PL1735779T3 (pt)
RU (1) RU2396608C2 (pt)
TW (1) TWI455614B (pt)
WO (1) WO2005098826A1 (pt)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1769655B1 (en) 2004-07-14 2011-09-28 Koninklijke Philips Electronics N.V. Method, device, encoder apparatus, decoder apparatus and audio system
EP1905002B1 (en) 2005-05-26 2013-05-22 LG Electronics Inc. Method and apparatus for decoding audio signal
JP4988716B2 (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
US8626503B2 (en) 2005-07-14 2014-01-07 Erik Gosuinus Petrus Schuijers Audio encoding and decoding
CN102013256B (zh) * 2005-07-14 2013-12-18 皇家飞利浦电子股份有限公司 用于生成多个输出音频通道的方法及设备
JP5587551B2 (ja) * 2005-09-13 2014-09-10 コーニンクレッカ フィリップス エヌ ヴェ オーディオ符号化
KR100803212B1 (ko) * 2006-01-11 2008-02-14 삼성전자주식회사 스케일러블 채널 복호화 방법 및 장치
EP1979898B1 (en) 2006-01-19 2014-08-06 Lg Electronics Inc. Method and apparatus for processing a media signal
KR100878816B1 (ko) 2006-02-07 2009-01-14 엘지전자 주식회사 부호화/복호화 장치 및 방법
RU2427978C2 (ru) * 2006-02-21 2011-08-27 Конинклейке Филипс Электроникс Н.В. Кодирование и декодирование аудио
ATE456261T1 (de) * 2006-02-21 2010-02-15 Koninkl Philips Electronics Nv Audiokodierung und audiodekodierung
MY144273A (en) 2006-10-16 2011-08-29 Fraunhofer Ges Forschung Apparatus and method for multi-chennel parameter transformation
WO2008046531A1 (en) * 2006-10-16 2008-04-24 Dolby Sweden Ab Enhanced coding and parameter representation of multichannel downmixed object coding
BRPI0711094A2 (pt) * 2006-11-24 2011-08-23 Lg Eletronics Inc método para codificação e decodificação de sinal de áudio baseado em objeto e aparelho deste
US8855795B2 (en) 2007-01-09 2014-10-07 Mediatek Inc. Multiple output audio system
EP2083584B1 (en) 2008-01-23 2010-09-15 LG Electronics Inc. A method and an apparatus for processing an audio signal
KR101024924B1 (ko) * 2008-01-23 2011-03-31 엘지전자 주식회사 오디오 신호의 처리 방법 및 이의 장치
WO2009093867A2 (en) 2008-01-23 2009-07-30 Lg Electronics Inc. A method and an apparatus for processing audio signal
EP2175670A1 (en) * 2008-10-07 2010-04-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Binaural rendering of a multi-channel audio signal
US8942989B2 (en) 2009-12-28 2015-01-27 Panasonic Intellectual Property Corporation Of America Speech coding of principal-component channels for deleting redundant inter-channel parameters
CN102280107B (zh) * 2010-06-10 2013-01-23 华为技术有限公司 边带残差信号生成方法及装置
EP2612321B1 (en) * 2010-09-28 2016-01-06 Huawei Technologies Co., Ltd. Device and method for postprocessing decoded multi-channel audio signal or decoded stereo signal
TWI530201B (zh) 2010-12-03 2016-04-11 弗勞恩霍夫爾協會 經由自抵達方向估值提取幾何資訊之聲音擷取技術
BR112013017063A2 (pt) * 2011-01-05 2018-06-05 Koninl Philips Electronics Nv sistema de áudio e método de operação de um sistema de áudio
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
EP2830046A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for decoding an encoded audio signal to obtain modified output signals
US9820073B1 (en) 2017-05-10 2017-11-14 Tls Corp. Extracting a common signal from multiple audio signals

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095049A (en) * 1976-03-15 1978-06-13 National Research Development Corporation Non-rotationally-symmetric surround-sound encoding system
US4236039A (en) * 1976-07-19 1980-11-25 National Research Development Corporation Signal matrixing for directional reproduction of sound
DE4209544A1 (de) * 1992-03-24 1993-09-30 Inst Rundfunktechnik Gmbh Verfahren zum Übertragen oder Speichern digitalisierter, mehrkanaliger Tonsignale
JP2693893B2 (ja) * 1992-03-30 1997-12-24 松下電器産業株式会社 ステレオ音声符号化方法
DE4236989C2 (de) * 1992-11-02 1994-11-17 Fraunhofer Ges Forschung Verfahren zur Übertragung und/oder Speicherung digitaler Signale mehrerer Kanäle
JPH06165079A (ja) * 1992-11-25 1994-06-10 Matsushita Electric Ind Co Ltd マルチチャンネルステレオ用ダウンミキシング装置
DE4409368A1 (de) 1994-03-18 1995-09-21 Fraunhofer Ges Forschung Verfahren zum Codieren mehrerer Audiosignale
US5727119A (en) * 1995-03-27 1998-03-10 Dolby Laboratories Licensing Corporation Method and apparatus for efficient implementation of single-sideband filter banks providing accurate measures of spectral magnitude and phase
US5642423A (en) 1995-11-22 1997-06-24 Sony Corporation Digital surround sound processor
US6697491B1 (en) 1996-07-19 2004-02-24 Harman International Industries, Incorporated 5-2-5 matrix encoder and decoder system
SG54379A1 (en) 1996-10-24 1998-11-16 Sgs Thomson Microelectronics A Audio decoder with an adaptive frequency domain downmixer
WO1998051126A1 (en) 1997-05-08 1998-11-12 Sgs-Thomson Microelectronics Asia Pacific (Pte) Ltd. Method and apparatus for frequency-domain downmixing with block-switch forcing for audio decoding functions
US6173061B1 (en) * 1997-06-23 2001-01-09 Harman International Industries, Inc. Steering of monaural sources of sound using head related transfer functions
US6067361A (en) * 1997-07-16 2000-05-23 Sony Corporation Method and apparatus for two channels of sound having directional cues
KR100809310B1 (ko) * 2000-07-19 2008-03-04 코닌클리케 필립스 일렉트로닉스 엔.브이. 스테레오 서라운드 및/또는 오디오 센터 신호를 구동하기 위한 다중-채널 스테레오 컨버터
US7292901B2 (en) * 2002-06-24 2007-11-06 Agere Systems Inc. Hybrid multi-channel/cue coding/decoding of audio signals
SE0202159D0 (sv) * 2001-07-10 2002-07-09 Coding Technologies Sweden Ab Efficientand scalable parametric stereo coding for low bitrate applications
US7039204B2 (en) * 2002-06-24 2006-05-02 Agere Systems Inc. Equalization for audio mixing
ATE377339T1 (de) 2002-07-12 2007-11-15 Koninkl Philips Electronics Nv Audio-kodierung
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
CN1906664A (zh) * 2004-02-25 2007-01-31 松下电器产业株式会社 音频编码器和音频解码器
US7805313B2 (en) * 2004-03-04 2010-09-28 Agere Systems Inc. Frequency-based coding of channels in parametric multi-channel coding systems
WO2005098241A1 (en) 2004-03-31 2005-10-20 Remmele Engineering, Inc. Connection mechanism and method
MXPA06011361A (es) 2004-04-05 2007-01-16 Koninkl Philips Electronics Nv Codificador de canales multiples.
EP1769655B1 (en) * 2004-07-14 2011-09-28 Koninklijke Philips Electronics N.V. Method, device, encoder apparatus, decoder apparatus and audio system

Also Published As

Publication number Publication date
KR20070001205A (ko) 2007-01-03
CN1947172B (zh) 2011-08-03
TWI455614B (zh) 2014-10-01
US9992599B2 (en) 2018-06-05
EP1735779B1 (en) 2013-06-19
BRPI0509110A8 (pt) 2016-02-10
TW200611588A (en) 2006-04-01
JP2007531916A (ja) 2007-11-08
MXPA06011397A (es) 2006-12-20
CN1947172A (zh) 2007-04-11
EP1735779A1 (en) 2006-12-27
US20070183601A1 (en) 2007-08-09
WO2005098826A1 (en) 2005-10-20
RU2006139068A (ru) 2008-05-20
RU2396608C2 (ru) 2010-08-10
BRPI0509110B1 (pt) 2019-07-09
ES2426917T3 (es) 2013-10-25
KR101183862B1 (ko) 2012-09-20
PL1735779T3 (pl) 2014-01-31
JP5284638B2 (ja) 2013-09-11

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Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved

Owner name: KONINKLIJKE PHILIPS N. V. (NL)

B25G Requested change of headquarter approved

Owner name: KONINKLIJKE PHILIPS N. V. (NL)

B06T Formal requirements before examination [chapter 6.20 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 09/07/2019, OBSERVADAS AS CONDICOES LEGAIS. (CO) 10 (DEZ) ANOS CONTADOS A PARTIR DE 09/07/2019, OBSERVADAS AS CONDICOES LEGAIS