TW200742275A - Low bit rate audio encoding and decoding in which multiple channels are represented by fewer channels and auxiliary information - Google Patents

Low bit rate audio encoding and decoding in which multiple channels are represented by fewer channels and auxiliary information

Info

Publication number
TW200742275A
TW200742275A TW096109719A TW96109719A TW200742275A TW 200742275 A TW200742275 A TW 200742275A TW 096109719 A TW096109719 A TW 096109719A TW 96109719 A TW96109719 A TW 96109719A TW 200742275 A TW200742275 A TW 200742275A
Authority
TW
Taiwan
Prior art keywords
audio signal
stereophonic
channel
discrete
hybrid
Prior art date
Application number
TW096109719A
Other languages
English (en)
Inventor
Mark Franklin Davis
Michael John Smithers
Original Assignee
Dolby Lab Licensing Corp
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 Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Publication of TW200742275A publication Critical patent/TW200742275A/zh

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
TW096109719A 2006-03-21 2007-03-21 Low bit rate audio encoding and decoding in which multiple channels are represented by fewer channels and auxiliary information TW200742275A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78455106P 2006-03-21 2006-03-21

Publications (1)

Publication Number Publication Date
TW200742275A true TW200742275A (en) 2007-11-01

Family

ID=38292963

Family Applications (1)

Application Number Title Priority Date Filing Date
TW096109719A TW200742275A (en) 2006-03-21 2007-03-21 Low bit rate audio encoding and decoding in which multiple channels are represented by fewer channels and auxiliary information

Country Status (2)

Country Link
TW (1) TW200742275A (zh)
WO (1) WO2007109338A1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8824688B2 (en) 2008-07-17 2014-09-02 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating audio output signals using object based metadata
TWI501661B (zh) * 2008-08-15 2015-09-21 Dts Inc 參數式立體聲轉換系統及方法
US9196257B2 (en) 2009-12-17 2015-11-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and a method for converting a first parametric spatial audio signal into a second parametric spatial audio signal
TWI618051B (zh) * 2013-02-14 2018-03-11 杜比實驗室特許公司 用於利用估計之空間參數的音頻訊號增強的音頻訊號處理方法及裝置
CN111862997A (zh) * 2013-07-22 2020-10-30 弗朗霍夫应用科学研究促进协会 使用自适应相位校准的多声道降混的梳型滤波器的伪迹消除

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE527654T1 (de) 2004-03-01 2011-10-15 Dolby Lab Licensing Corp Mehrkanal-audiodecodierung
EP2237267A4 (en) * 2007-12-21 2012-01-18 Panasonic Corp STEREOSIGNALUMSETZER, STEREOSIGNALWANDLER AND METHOD THEREFOR
CN101533641B (zh) 2009-04-20 2011-07-20 华为技术有限公司 对多声道信号的声道延迟参数进行修正的方法和装置
WO2011029984A1 (en) * 2009-09-11 2011-03-17 Nokia Corporation Method, apparatus and computer program product for audio coding
BR112013004362B1 (pt) 2010-08-25 2020-12-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. aparelho para a geração de um sinal descorrelacionado utilizando informação de fase transmitida
KR101756838B1 (ko) * 2010-10-13 2017-07-11 삼성전자주식회사 다채널 오디오 신호를 다운 믹스하는 방법 및 장치
WO2014126689A1 (en) 2013-02-14 2014-08-21 Dolby Laboratories Licensing Corporation Methods for controlling the inter-channel coherence of upmixed audio signals
WO2014126688A1 (en) 2013-02-14 2014-08-21 Dolby Laboratories Licensing Corporation Methods for audio signal transient detection and decorrelation control
TWI618050B (zh) 2013-02-14 2018-03-11 杜比實驗室特許公司 用於音訊處理系統中之訊號去相關的方法及設備
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
SG11201600466PA (en) 2013-07-22 2016-02-26 Fraunhofer Ges Forschung Multi-channel audio decoder, multi-channel audio encoder, methods, computer program and encoded audio representation using a decorrelation of rendered audio signals
DE102016107799B3 (de) 2016-04-27 2017-05-18 Hans-Peter Hahn Verfahren zur Verarbeitung eines FM-Stereosignals
FR3101741A1 (fr) * 2019-10-02 2021-04-09 Orange Détermination de corrections à appliquer à un signal audio multicanal, codage et décodage associés

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4799260A (en) * 1985-03-07 1989-01-17 Dolby Laboratories Licensing Corporation Variable matrix decoder
ATE527654T1 (de) * 2004-03-01 2011-10-15 Dolby Lab Licensing Corp Mehrkanal-audiodecodierung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8824688B2 (en) 2008-07-17 2014-09-02 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating audio output signals using object based metadata
TWI501661B (zh) * 2008-08-15 2015-09-21 Dts Inc 參數式立體聲轉換系統及方法
US9196257B2 (en) 2009-12-17 2015-11-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and a method for converting a first parametric spatial audio signal into a second parametric spatial audio signal
TWI618051B (zh) * 2013-02-14 2018-03-11 杜比實驗室特許公司 用於利用估計之空間參數的音頻訊號增強的音頻訊號處理方法及裝置
CN111862997A (zh) * 2013-07-22 2020-10-30 弗朗霍夫应用科学研究促进协会 使用自适应相位校准的多声道降混的梳型滤波器的伪迹消除

Also Published As

Publication number Publication date
WO2007109338A1 (en) 2007-09-27

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