AU2001286350A1 - Multi-channel signal encoding and decoding - Google Patents

Multi-channel signal encoding and decoding

Info

Publication number
AU2001286350A1
AU2001286350A1 AU2001286350A AU8635001A AU2001286350A1 AU 2001286350 A1 AU2001286350 A1 AU 2001286350A1 AU 2001286350 A AU2001286350 A AU 2001286350A AU 8635001 A AU8635001 A AU 8635001A AU 2001286350 A1 AU2001286350 A1 AU 2001286350A1
Authority
AU
Australia
Prior art keywords
signal encoding
decoding
channel signal
channel
leading channel
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
AU2001286350A
Inventor
Tomas Lundberg
Tor Bjorn Minde
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 AU2001286350A1 publication Critical patent/AU2001286350A1/en
Abandoned legal-status Critical Current

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
    • G10L19/008—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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding

Abstract

A multi-channel linear predictive analysis-by-synthesis signal encoding method determines (S 1 ) a leading channel and encodes the leading channel as an embedded bitstream. Thereafter trailing channels are encoded as a discardable bitstream exploiting cross-correlation to the leading channel.
AU2001286350A 2000-09-15 2001-09-05 Multi-channel signal encoding and decoding Abandoned AU2001286350A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0003287 2000-09-15
SE0003287A SE519985C2 (en) 2000-09-15 2000-09-15 Coding and decoding of signals from multiple channels
PCT/SE2001/001886 WO2002023529A1 (en) 2000-09-15 2001-09-05 Multi-channel signal encoding and decoding

Publications (1)

Publication Number Publication Date
AU2001286350A1 true AU2001286350A1 (en) 2002-03-26

Family

ID=20281034

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001286350A Abandoned AU2001286350A1 (en) 2000-09-15 2001-09-05 Multi-channel signal encoding and decoding

Country Status (8)

Country Link
US (1) US7263480B2 (en)
EP (1) EP1325495B1 (en)
JP (1) JP4498677B2 (en)
AT (1) ATE358317T1 (en)
AU (1) AU2001286350A1 (en)
DE (1) DE60127566T2 (en)
SE (1) SE519985C2 (en)
WO (1) WO2002023529A1 (en)

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CN1989546B (en) * 2004-07-20 2011-07-13 松下电器产业株式会社 Sound encoder and sound encoding method
ATE442644T1 (en) * 2004-08-26 2009-09-15 Panasonic Corp MULTI-CHANNEL SIGNAL DECODING
EP1801782A4 (en) * 2004-09-28 2008-09-24 Matsushita Electric Ind Co Ltd Scalable encoding apparatus and scalable encoding method
CN101031960A (en) 2004-09-30 2007-09-05 松下电器产业株式会社 Scalable encoding device, scalable decoding device, and method thereof
WO2006059567A1 (en) * 2004-11-30 2006-06-08 Matsushita Electric Industrial Co., Ltd. Stereo encoding apparatus, stereo decoding apparatus, and their methods
EP1818911B1 (en) * 2004-12-27 2012-02-08 Panasonic Corporation Sound coding device and sound coding method
WO2006070760A1 (en) * 2004-12-28 2006-07-06 Matsushita Electric Industrial Co., Ltd. Scalable encoding apparatus and scalable encoding method
CN101116137B (en) 2005-02-10 2011-02-09 松下电器产业株式会社 Pulse allocating method in voice coding
EP1691348A1 (en) * 2005-02-14 2006-08-16 Ecole Polytechnique Federale De Lausanne Parametric joint-coding of audio sources
WO2006091139A1 (en) * 2005-02-23 2006-08-31 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive bit allocation for multi-channel audio encoding
US9626973B2 (en) 2005-02-23 2017-04-18 Telefonaktiebolaget L M Ericsson (Publ) 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
KR101346120B1 (en) * 2005-03-30 2014-01-02 코닌클리케 필립스 엔.브이. Audio encoding and decoding
JP4599558B2 (en) * 2005-04-22 2010-12-15 国立大学法人九州工業大学 Pitch period equalizing apparatus, pitch period equalizing method, speech encoding apparatus, speech decoding apparatus, and speech encoding method
US8433581B2 (en) * 2005-04-28 2013-04-30 Panasonic Corporation Audio encoding device and audio encoding 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
FR2916079A1 (en) * 2007-05-10 2008-11-14 France Telecom AUDIO ENCODING AND DECODING METHOD, AUDIO ENCODER, AUDIO DECODER AND ASSOCIATED COMPUTER PROGRAMS
US8218775B2 (en) 2007-09-19 2012-07-10 Telefonaktiebolaget L M Ericsson (Publ) Joint enhancement of multi-channel audio
US8515767B2 (en) * 2007-11-04 2013-08-20 Qualcomm Incorporated Technique for encoding/decoding of codebook indices for quantized MDCT spectrum in scalable speech and audio codecs
NO2669468T3 (en) * 2011-05-11 2018-06-02
CN115831130A (en) 2018-06-29 2023-03-21 华为技术有限公司 Coding method, decoding method, coding device and decoding device for stereo signal
GB2580899A (en) * 2019-01-22 2020-08-05 Nokia Technologies Oy Audio representation and associated rendering
CN112233682A (en) * 2019-06-29 2021-01-15 华为技术有限公司 Stereo coding method, stereo decoding method and device

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JPH0744511B2 (en) * 1988-09-14 1995-05-15 富士通株式会社 High suburb rate multiplexing method
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JP3099876B2 (en) * 1997-02-05 2000-10-16 日本電信電話株式会社 Multi-channel audio signal encoding method and decoding method thereof, and encoding apparatus and decoding apparatus using the same
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
JPH1132399A (en) * 1997-05-13 1999-02-02 Sony Corp Coding method and system and recording medium
KR100335611B1 (en) * 1997-11-20 2002-10-09 삼성전자 주식회사 Scalable stereo audio encoding/decoding method and apparatus
SE519552C2 (en) * 1998-09-30 2003-03-11 Ericsson Telefon Ab L M Multichannel signal coding and decoding
TW510830B (en) * 1999-08-10 2002-11-21 Sumitomo Metal Ind Method for treating hazardous material
DE19959156C2 (en) * 1999-12-08 2002-01-31 Fraunhofer Ges Forschung Method and device for processing a stereo audio signal to be encoded

Also Published As

Publication number Publication date
US20030191635A1 (en) 2003-10-09
DE60127566T2 (en) 2007-08-16
EP1325495B1 (en) 2007-03-28
WO2002023529A1 (en) 2002-03-21
JP4498677B2 (en) 2010-07-07
EP1325495A1 (en) 2003-07-09
ATE358317T1 (en) 2007-04-15
DE60127566D1 (en) 2007-05-10
US7263480B2 (en) 2007-08-28
SE0003287L (en) 2002-03-16
SE0003287D0 (en) 2000-09-15
SE519985C2 (en) 2003-05-06
JP2004509367A (en) 2004-03-25

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