SE519985C2 - Kodning och avkodning av signaler från flera kanaler - Google Patents
Kodning och avkodning av signaler från flera kanalerInfo
- Publication number
- SE519985C2 SE519985C2 SE0003287A SE0003287A SE519985C2 SE 519985 C2 SE519985 C2 SE 519985C2 SE 0003287 A SE0003287 A SE 0003287A SE 0003287 A SE0003287 A SE 0003287A SE 519985 C2 SE519985 C2 SE 519985C2
- Authority
- SE
- Sweden
- Prior art keywords
- channel
- inter
- channels
- correlation
- subsequent
- Prior art date
Links
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 19
- 230000003044 adaptive effect Effects 0.000 claims description 29
- 238000004458 analytical method Methods 0.000 claims description 23
- 230000015572 biosynthetic process Effects 0.000 claims description 23
- 230000001934 delay Effects 0.000 claims description 16
- 239000013598 vector Substances 0.000 description 16
- 230000005284 excitation Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 11
- 230000002787 reinforcement Effects 0.000 description 9
- 230000000875 corresponding effect Effects 0.000 description 8
- 238000004891 communication Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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
- G10L19/04—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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Quality & Reliability (AREA)
- Mathematical Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Error Detection And Correction (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0003287A SE519985C2 (sv) | 2000-09-15 | 2000-09-15 | Kodning och avkodning av signaler från flera kanaler |
US10/380,419 US7263480B2 (en) | 2000-09-15 | 2001-09-05 | Multi-channel signal encoding and decoding |
AT01965791T ATE358317T1 (de) | 2000-09-15 | 2001-09-05 | Mehrkanal-signalcodierung und -decodierung |
EP01965791A EP1325495B1 (fr) | 2000-09-15 | 2001-09-05 | Codage et decodage de signaux multiplex |
DE60127566T DE60127566T2 (de) | 2000-09-15 | 2001-09-05 | Mehrkanal-signalcodierung und -decodierung |
PCT/SE2001/001886 WO2002023529A1 (fr) | 2000-09-15 | 2001-09-05 | Codage et décodage de signaux multiplex |
JP2002527493A JP4498677B2 (ja) | 2000-09-15 | 2001-09-05 | 複数チャネル信号の符号化及び復号化 |
AU2001286350A AU2001286350A1 (en) | 2000-09-15 | 2001-09-05 | Multi-channel signal encoding and decoding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0003287A SE519985C2 (sv) | 2000-09-15 | 2000-09-15 | Kodning och avkodning av signaler från flera kanaler |
Publications (3)
Publication Number | Publication Date |
---|---|
SE0003287D0 SE0003287D0 (sv) | 2000-09-15 |
SE0003287L SE0003287L (sv) | 2002-03-16 |
SE519985C2 true SE519985C2 (sv) | 2003-05-06 |
Family
ID=20281034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0003287A SE519985C2 (sv) | 2000-09-15 | 2000-09-15 | Kodning och avkodning av signaler från flera kanaler |
Country Status (8)
Country | Link |
---|---|
US (1) | US7263480B2 (fr) |
EP (1) | EP1325495B1 (fr) |
JP (1) | JP4498677B2 (fr) |
AT (1) | ATE358317T1 (fr) |
AU (1) | AU2001286350A1 (fr) |
DE (1) | DE60127566T2 (fr) |
SE (1) | SE519985C2 (fr) |
WO (1) | WO2002023529A1 (fr) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3273599B2 (ja) * | 1998-06-19 | 2002-04-08 | 沖電気工業株式会社 | 音声符号化レート選択器と音声符号化装置 |
SE519976C2 (sv) * | 2000-09-15 | 2003-05-06 | Ericsson Telefon Ab L M | Kodning och avkodning av signaler från flera kanaler |
FI121583B (fi) * | 2002-07-05 | 2011-01-14 | Syslore Oy | Symbolijonon etsintä |
DE602005011439D1 (de) * | 2004-06-21 | 2009-01-15 | Koninkl Philips Electronics Nv | Verfahren und vorrichtung zum kodieren und dekodieren von mehrkanaltonsignalen |
EP1763017B1 (fr) * | 2004-07-20 | 2012-04-25 | Panasonic Corporation | Codeur de son et méthode de codage de son |
KR20070051864A (ko) * | 2004-08-26 | 2007-05-18 | 마츠시타 덴끼 산교 가부시키가이샤 | 멀티 채널 신호 부호화 장치 및 멀티 채널 신호 복호 장치 |
WO2006035705A1 (fr) * | 2004-09-28 | 2006-04-06 | Matsushita Electric Industrial Co., Ltd. | Appareil de codage extensible et méthode de codage extensible |
CN101031960A (zh) | 2004-09-30 | 2007-09-05 | 松下电器产业株式会社 | 可扩展性编码装置和可扩展性解码装置及其方法 |
BRPI0516658A (pt) * | 2004-11-30 | 2008-09-16 | Matsushita Electric Ind Co Ltd | aparelho de codificação de estéreo, aparelho de decodificação de estéreo e seus métodos |
BRPI0516376A (pt) | 2004-12-27 | 2008-09-02 | Matsushita Electric Ind Co Ltd | dispositivo de codificação de som e método de codificação de som |
EP1818910A4 (fr) * | 2004-12-28 | 2009-11-25 | Panasonic Corp | Procede et appareil d'encodage de mise a l'echelle |
CN101116137B (zh) | 2005-02-10 | 2011-02-09 | 松下电器产业株式会社 | 语音编码中的脉冲分配方法 |
EP1691348A1 (fr) * | 2005-02-14 | 2006-08-16 | Ecole Polytechnique Federale De Lausanne | Codage paramétrique combiné de sources audio |
ATE521143T1 (de) * | 2005-02-23 | 2011-09-15 | Ericsson Telefon Ab L M | Adaptive bitzuweisung für die mehrkanal- audiokodierung |
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 |
CN101151660B (zh) * | 2005-03-30 | 2011-10-19 | 皇家飞利浦电子股份有限公司 | 多通道音频编码器、解码器以及相应方法 |
JP4599558B2 (ja) * | 2005-04-22 | 2010-12-15 | 国立大学法人九州工業大学 | ピッチ周期等化装置及びピッチ周期等化方法、並びに音声符号化装置、音声復号装置及び音声符号化方法 |
JP4907522B2 (ja) | 2005-04-28 | 2012-03-28 | 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 |
JP4850827B2 (ja) * | 2005-04-28 | 2012-01-11 | 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 |
FR2916079A1 (fr) * | 2007-05-10 | 2008-11-14 | France Telecom | Procede de codage et decodage audio, codeur audio, decodeur audio et programmes d'ordinateur associes |
CN101802907B (zh) | 2007-09-19 | 2013-11-13 | 爱立信电话股份有限公司 | 多信道音频的联合增强 |
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 (fr) * | 2011-05-11 | 2018-06-02 | ||
CN110728986B (zh) * | 2018-06-29 | 2022-10-18 | 华为技术有限公司 | 立体声信号的编码方法、解码方法、编码装置和解码装置 |
GB2580899A (en) * | 2019-01-22 | 2020-08-05 | Nokia Technologies Oy | Audio representation and associated rendering |
CN112233682A (zh) * | 2019-06-29 | 2021-01-15 | 华为技术有限公司 | 一种立体声编码方法、立体声解码方法和装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0744511B2 (ja) * | 1988-09-14 | 1995-05-15 | 富士通株式会社 | 高郊率多重化方式 |
GB8913758D0 (en) | 1989-06-15 | 1989-08-02 | British Telecomm | Polyphonic coding |
CA2046369C (fr) * | 1990-07-05 | 1997-04-15 | Naoji Fujino | Systeme de transmission haute performance a multiplexage numerique |
JP3622365B2 (ja) * | 1996-09-26 | 2005-02-23 | ヤマハ株式会社 | 音声符号化伝送方式 |
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 |
JP3099876B2 (ja) * | 1997-02-05 | 2000-10-16 | 日本電信電話株式会社 | 多チャネル音声信号符号化方法及びその復号方法及びそれを使った符号化装置及び復号化装置 |
TW384434B (en) * | 1997-03-31 | 2000-03-11 | Sony Corp | Encoding method, device therefor, decoding method, device therefor and recording medium |
JPH1132399A (ja) * | 1997-05-13 | 1999-02-02 | Sony Corp | 符号化方法及び装置、並びに記録媒体 |
KR100335611B1 (ko) * | 1997-11-20 | 2002-10-09 | 삼성전자 주식회사 | 비트율 조절이 가능한 스테레오 오디오 부호화/복호화 방법 및 장치 |
SE519552C2 (sv) * | 1998-09-30 | 2003-03-11 | Ericsson Telefon Ab L M | Flerkanalig signalkodning och -avkodning |
TW510830B (en) * | 1999-08-10 | 2002-11-21 | Sumitomo Metal Ind | Method for treating hazardous material |
DE19959156C2 (de) * | 1999-12-08 | 2002-01-31 | Fraunhofer Ges Forschung | Verfahren und Vorrichtung zum Verarbeiten eines zu codierenden Stereoaudiosignals |
-
2000
- 2000-09-15 SE SE0003287A patent/SE519985C2/sv unknown
-
2001
- 2001-09-05 DE DE60127566T patent/DE60127566T2/de not_active Expired - Lifetime
- 2001-09-05 EP EP01965791A patent/EP1325495B1/fr not_active Expired - Lifetime
- 2001-09-05 AU AU2001286350A patent/AU2001286350A1/en not_active Abandoned
- 2001-09-05 WO PCT/SE2001/001886 patent/WO2002023529A1/fr active IP Right Grant
- 2001-09-05 JP JP2002527493A patent/JP4498677B2/ja not_active Expired - Fee Related
- 2001-09-05 US US10/380,419 patent/US7263480B2/en not_active Expired - Lifetime
- 2001-09-05 AT AT01965791T patent/ATE358317T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE0003287D0 (sv) | 2000-09-15 |
SE0003287L (sv) | 2002-03-16 |
JP4498677B2 (ja) | 2010-07-07 |
DE60127566D1 (de) | 2007-05-10 |
JP2004509367A (ja) | 2004-03-25 |
US7263480B2 (en) | 2007-08-28 |
AU2001286350A1 (en) | 2002-03-26 |
US20030191635A1 (en) | 2003-10-09 |
EP1325495A1 (fr) | 2003-07-09 |
ATE358317T1 (de) | 2007-04-15 |
DE60127566T2 (de) | 2007-08-16 |
EP1325495B1 (fr) | 2007-03-28 |
WO2002023529A1 (fr) | 2002-03-21 |
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