AU2001284588A1 - Multi-channel signal encoding and decoding - Google Patents

Multi-channel signal encoding and decoding

Info

Publication number
AU2001284588A1
AU2001284588A1 AU2001284588A AU8458801A AU2001284588A1 AU 2001284588 A1 AU2001284588 A1 AU 2001284588A1 AU 2001284588 A AU2001284588 A AU 2001284588A AU 8458801 A AU8458801 A AU 8458801A AU 2001284588 A1 AU2001284588 A1 AU 2001284588A1
Authority
AU
Australia
Prior art keywords
signal encoding
decoding
channel signal
channel
correlation
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2001284588A
Inventor
Tomas Lundberg
Tor Bjorn Minde
Arne Steinarson
Jonas Svedberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of AU2001284588A1 publication Critical patent/AU2001284588A1/en
Abandoned legal-status Critical Current

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
    • G10L19/04—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
    • 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
    • G10L19/04—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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Error Detection And Correction (AREA)

Abstract

A multi-channel linear predictive analysis-by-synthesis signal encoding method detects (S 26 , S 27 ) inter-channel correlation and select one of several possible encoding modes (S 24, S 29, S 30 ) based on the detected correlation.
AU2001284588A 2000-09-15 2001-09-05 Multi-channel signal encoding and decoding Abandoned AU2001284588A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0003285A SE519981C2 (en) 2000-09-15 2000-09-15 Coding and decoding of signals from multiple channels
SE0003285 2000-09-15
PCT/SE2001/001885 WO2002023528A1 (en) 2000-09-15 2001-09-05 Multi-channel signal encoding and decoding

Publications (1)

Publication Number Publication Date
AU2001284588A1 true AU2001284588A1 (en) 2002-03-26

Family

ID=20281032

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001284588A Abandoned AU2001284588A1 (en) 2000-09-15 2001-09-05 Multi-channel signal encoding and decoding

Country Status (8)

Country Link
US (1) US7283957B2 (en)
EP (1) EP1320849B1 (en)
JP (1) JP4485123B2 (en)
AT (1) ATE363710T1 (en)
AU (1) AU2001284588A1 (en)
DE (1) DE60128711T2 (en)
SE (1) SE519981C2 (en)
WO (1) WO2002023528A1 (en)

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SE519981C2 (en) 2000-09-15 2003-05-06 Ericsson Telefon Ab L M Coding and decoding of signals from multiple channels
SE519976C2 (en) * 2000-09-15 2003-05-06 Ericsson Telefon Ab L M Coding and decoding of signals from multiple channels
US7111102B2 (en) * 2003-10-06 2006-09-19 Cisco Technology, Inc. Port adapter for high-bandwidth bus
FR2867649A1 (en) * 2003-12-10 2005-09-16 France Telecom OPTIMIZED MULTIPLE CODING METHOD
KR20070051864A (en) * 2004-08-26 2007-05-18 마츠시타 덴끼 산교 가부시키가이샤 Multichannel signal coding equipment and multichannel signal decoding equipment
WO2006035705A1 (en) * 2004-09-28 2006-04-06 Matsushita Electric Industrial Co., Ltd. Scalable encoding apparatus and scalable encoding method
DE602005017660D1 (en) * 2004-12-28 2009-12-24 Panasonic Corp AUDIO CODING DEVICE AND AUDIO CODING METHOD
US9626973B2 (en) 2005-02-23 2017-04-18 Telefonaktiebolaget L M Ericsson (Publ) Adaptive bit allocation for multi-channel audio encoding
ATE521143T1 (en) * 2005-02-23 2011-09-15 Ericsson Telefon Ab L M ADAPTIVE BIT ALLOCATION FOR MULTI-CHANNEL AUDIO ENCODING
US8000967B2 (en) * 2005-03-09 2011-08-16 Telefonaktiebolaget Lm Ericsson (Publ) Low-complexity code excited linear prediction encoding
JP4850827B2 (en) * 2005-04-28 2012-01-11 パナソニック株式会社 Speech coding apparatus and speech coding method
JP4907522B2 (en) * 2005-04-28 2012-03-28 パナソニック株式会社 Speech coding apparatus and speech coding method
US9058812B2 (en) * 2005-07-27 2015-06-16 Google Technology Holdings LLC Method and system for coding an information signal using pitch delay contour adjustment
EP1771021A1 (en) * 2005-09-29 2007-04-04 Telefonaktiebolaget LM Ericsson (publ) A method and apparatus for allocation of radio resources
KR100667852B1 (en) * 2006-01-13 2007-01-11 삼성전자주식회사 Apparatus and method for eliminating noise in portable recorder
ATE423433T1 (en) * 2006-04-18 2009-03-15 Harman Becker Automotive Sys SYSTEM AND METHOD FOR MULTI-CHANNEL ECHO COMPENSATION
KR101186133B1 (en) * 2006-10-10 2012-09-27 퀄컴 인코포레이티드 Method and apparatus for encoding and decoding audio signals
KR101398836B1 (en) * 2007-08-02 2014-05-26 삼성전자주식회사 Method and apparatus for implementing fixed codebooks of speech codecs as a common module
CN101802907B (en) 2007-09-19 2013-11-13 爱立信电话股份有限公司 Joint enhancement of multi-channel audio
GB2470059A (en) 2009-05-08 2010-11-10 Nokia Corp Multi-channel audio processing using an inter-channel prediction model to form an inter-channel parameter
US8620660B2 (en) * 2010-10-29 2013-12-31 The United States Of America, As Represented By The Secretary Of The Navy Very low bit rate signal coder and decoder
JP5737077B2 (en) * 2011-08-30 2015-06-17 富士通株式会社 Audio encoding apparatus, audio encoding method, and audio encoding computer program
US9460729B2 (en) 2012-09-21 2016-10-04 Dolby Laboratories Licensing Corporation Layered approach to spatial audio coding
WO2015104447A1 (en) * 2014-01-13 2015-07-16 Nokia Technologies Oy Multi-channel audio signal classifier
EP3067886A1 (en) * 2015-03-09 2016-09-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder for encoding a multichannel signal and audio decoder for decoding an encoded audio signal
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
CA2997334A1 (en) * 2015-09-25 2017-03-30 Voiceage Corporation Method and system for encoding left and right channels of a stereo sound signal selecting between two and four sub-frames models depending on the bit budget
US9978381B2 (en) * 2016-02-12 2018-05-22 Qualcomm Incorporated Encoding of multiple audio signals
US10475457B2 (en) * 2017-07-03 2019-11-12 Qualcomm Incorporated Time-domain inter-channel prediction
CN110718237B (en) * 2018-07-12 2023-08-18 阿里巴巴集团控股有限公司 Crosstalk data detection method and electronic equipment
CN115410584A (en) * 2021-05-28 2022-11-29 华为技术有限公司 Method and apparatus for encoding multi-channel audio signal

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GB8913758D0 (en) 1989-06-15 1989-08-02 British Telecomm Polyphonic coding
JP3343962B2 (en) 1992-11-11 2002-11-11 ソニー株式会社 High efficiency coding method and apparatus
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
US6345246B1 (en) * 1997-02-05 2002-02-05 Nippon Telegraph And Telephone Corporation Apparatus and method for efficiently coding plural channels of an acoustic signal at low bit rates
TW384434B (en) 1997-03-31 2000-03-11 Sony Corp Encoding method, device therefor, decoding method, device therefor and recording medium
DE19829284C2 (en) 1998-05-15 2000-03-16 Fraunhofer Ges Forschung Method and apparatus for processing a temporal stereo signal and method and apparatus for decoding an audio bit stream encoded using prediction over frequency
SE519552C2 (en) * 1998-09-30 2003-03-11 Ericsson Telefon Ab L M Multichannel signal coding and decoding
SE519981C2 (en) 2000-09-15 2003-05-06 Ericsson Telefon Ab L M Coding and decoding of signals from multiple channels

Also Published As

Publication number Publication date
EP1320849A1 (en) 2003-06-25
US7283957B2 (en) 2007-10-16
WO2002023528A1 (en) 2002-03-21
EP1320849B1 (en) 2007-05-30
SE519981C2 (en) 2003-05-06
DE60128711D1 (en) 2007-07-12
SE0003285L (en) 2002-03-16
JP4485123B2 (en) 2010-06-16
ATE363710T1 (en) 2007-06-15
DE60128711T2 (en) 2008-02-07
JP2004509366A (en) 2004-03-25
US20040109471A1 (en) 2004-06-10
SE0003285D0 (en) 2000-09-15

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