DE602004023240D1 - Coding and decoding of multi-channel sound signals based on a main and sub signal representation - Google Patents
Coding and decoding of multi-channel sound signals based on a main and sub signal representationInfo
- Publication number
- DE602004023240D1 DE602004023240D1 DE602004023240T DE602004023240T DE602004023240D1 DE 602004023240 D1 DE602004023240 D1 DE 602004023240D1 DE 602004023240 T DE602004023240 T DE 602004023240T DE 602004023240 T DE602004023240 T DE 602004023240T DE 602004023240 D1 DE602004023240 D1 DE 602004023240D1
- Authority
- DE
- Germany
- Prior art keywords
- signal
- main
- decoding
- mono
- coding
- 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.)
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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
Abstract
A method of encoding multi-channel audio signals comprises generating of a first output signal (x' mono ), being encoding (38) parameters representing a main signal (x mono ). The main signal (x mono ) is a first linear combination (34) of signals (16A,16B) of at least a first and a second channel. The method further comprises generating (30) of a second output signal (p side ), being encoding parameters representing a side signal (x side ). The side signal (x side ) is a second linear combination (36) of signals (16A,16B) of at least the first and the second channel within an encoding frame. The method is characterised in that the generating of the second output signal further comprises scaling of the side signal (x side ) to an energy contour of the main signal (x mono ). A method of decoding is also presented as well as an encoder, a decoder and audio system, all according to the same basic idea.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0303501A SE0303501D0 (en) | 2003-12-19 | 2003-12-19 | Filter-based parametric multi-channel coding |
SE0400417A SE527670C2 (en) | 2003-12-19 | 2004-02-20 | Natural fidelity optimized coding with variable frame length |
Publications (1)
Publication Number | Publication Date |
---|---|
DE602004023240D1 true DE602004023240D1 (en) | 2009-10-29 |
Family
ID=31996354
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE602004008613T Active DE602004008613T2 (en) | 2003-12-19 | 2004-12-15 | TREUE OPTIMIZED CODING WITH VARIABLE FRAME LENGTH |
DE602004023240T Active DE602004023240D1 (en) | 2003-12-19 | 2004-12-15 | Coding and decoding of multi-channel sound signals based on a main and sub signal representation |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE602004008613T Active DE602004008613T2 (en) | 2003-12-19 | 2004-12-15 | TREUE OPTIMIZED CODING WITH VARIABLE FRAME LENGTH |
Country Status (15)
Country | Link |
---|---|
EP (2) | EP1845519B1 (en) |
JP (2) | JP4335917B2 (en) |
CN (2) | CN101118747B (en) |
AT (2) | ATE371924T1 (en) |
AU (1) | AU2004298708B2 (en) |
BR (2) | BRPI0410856B8 (en) |
CA (2) | CA2527971C (en) |
DE (2) | DE602004008613T2 (en) |
HK (2) | HK1091585A1 (en) |
MX (1) | MXPA05012230A (en) |
PL (1) | PL1623411T3 (en) |
RU (2) | RU2305870C2 (en) |
SE (1) | SE527670C2 (en) |
WO (1) | WO2005059899A1 (en) |
ZA (1) | ZA200508980B (en) |
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EP1913576A2 (en) | 2005-06-30 | 2008-04-23 | LG Electronics Inc. | Apparatus for encoding and decoding audio signal and method thereof |
US8032240B2 (en) * | 2005-07-11 | 2011-10-04 | Lg Electronics Inc. | Apparatus and method of processing an audio signal |
US7987097B2 (en) | 2005-08-30 | 2011-07-26 | Lg Electronics | Method for decoding an audio signal |
US7822616B2 (en) | 2005-08-30 | 2010-10-26 | Lg Electronics Inc. | Time slot position coding of multiple frame types |
JP4859925B2 (en) | 2005-08-30 | 2012-01-25 | エルジー エレクトロニクス インコーポレイティド | Audio signal decoding method and apparatus |
US7788107B2 (en) | 2005-08-30 | 2010-08-31 | Lg Electronics Inc. | Method for decoding an audio signal |
US7672379B2 (en) | 2005-10-05 | 2010-03-02 | Lg Electronics Inc. | Audio signal processing, encoding, and decoding |
US7751485B2 (en) | 2005-10-05 | 2010-07-06 | Lg Electronics Inc. | Signal processing using pilot based coding |
US8068569B2 (en) | 2005-10-05 | 2011-11-29 | Lg Electronics, Inc. | Method and apparatus for signal processing and encoding and decoding |
US7696907B2 (en) | 2005-10-05 | 2010-04-13 | Lg Electronics Inc. | Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor |
KR100857115B1 (en) | 2005-10-05 | 2008-09-05 | 엘지전자 주식회사 | Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor |
US7646319B2 (en) | 2005-10-05 | 2010-01-12 | Lg Electronics Inc. | Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor |
US8755442B2 (en) | 2005-10-05 | 2014-06-17 | Lg Electronics Inc. | Method of processing a signal and apparatus for processing a signal |
US7761289B2 (en) | 2005-10-24 | 2010-07-20 | Lg Electronics Inc. | Removing time delays in signal paths |
WO2007080211A1 (en) * | 2006-01-09 | 2007-07-19 | Nokia Corporation | Decoding of binaural audio signals |
US8204740B2 (en) | 2006-02-06 | 2012-06-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Variable frame offset coding |
US7461106B2 (en) | 2006-09-12 | 2008-12-02 | Motorola, Inc. | Apparatus and method for low complexity combinatorial coding of signals |
US8576096B2 (en) | 2007-10-11 | 2013-11-05 | Motorola Mobility Llc | Apparatus and method for low complexity combinatorial coding of signals |
US8209190B2 (en) | 2007-10-25 | 2012-06-26 | Motorola Mobility, Inc. | Method and apparatus for generating an enhancement layer within an audio coding system |
US7889103B2 (en) | 2008-03-13 | 2011-02-15 | Motorola Mobility, Inc. | Method and apparatus for low complexity combinatorial coding of signals |
US8639519B2 (en) | 2008-04-09 | 2014-01-28 | Motorola Mobility Llc | Method and apparatus for selective signal coding based on core encoder performance |
EP2124486A1 (en) * | 2008-05-13 | 2009-11-25 | Clemens Par | Angle-dependent operating device or method for generating a pseudo-stereophonic audio signal |
WO2009141775A1 (en) | 2008-05-23 | 2009-11-26 | Koninklijke Philips Electronics N.V. | A parametric stereo upmix apparatus, a parametric stereo decoder, a parametric stereo downmix apparatus, a parametric stereo encoder |
US20110137661A1 (en) * | 2008-08-08 | 2011-06-09 | Panasonic Corporation | Quantizing device, encoding device, quantizing method, and encoding method |
EP2347411B1 (en) * | 2008-09-17 | 2012-12-05 | France Télécom | Pre-echo attenuation in a digital audio signal |
JP5309944B2 (en) | 2008-12-11 | 2013-10-09 | 富士通株式会社 | Audio decoding apparatus, method, and program |
US8140342B2 (en) | 2008-12-29 | 2012-03-20 | Motorola Mobility, Inc. | Selective scaling mask computation based on peak detection |
US8200496B2 (en) | 2008-12-29 | 2012-06-12 | Motorola Mobility, Inc. | Audio signal decoder and method for producing a scaled reconstructed audio signal |
US8219408B2 (en) | 2008-12-29 | 2012-07-10 | Motorola Mobility, Inc. | Audio signal decoder and method for producing a scaled reconstructed audio signal |
US8175888B2 (en) | 2008-12-29 | 2012-05-08 | Motorola Mobility, Inc. | Enhanced layered gain factor balancing within a multiple-channel audio coding system |
US9105264B2 (en) | 2009-07-31 | 2015-08-11 | Panasonic Intellectual Property Management Co., Ltd. | Coding apparatus and decoding apparatus |
US8977546B2 (en) * | 2009-10-20 | 2015-03-10 | Panasonic Intellectual Property Corporation Of America | Encoding device, decoding device and method for both |
EP2346028A1 (en) * | 2009-12-17 | 2011-07-20 | Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. | An apparatus and a method for converting a first parametric spatial audio signal into a second parametric spatial audio signal |
CN102770913B (en) * | 2009-12-23 | 2015-10-07 | 诺基亚公司 | Sparse audio |
US8442837B2 (en) | 2009-12-31 | 2013-05-14 | Motorola Mobility Llc | Embedded speech and audio coding using a switchable model core |
US8423355B2 (en) | 2010-03-05 | 2013-04-16 | Motorola Mobility Llc | Encoder for audio signal including generic audio and speech frames |
US8428936B2 (en) | 2010-03-05 | 2013-04-23 | Motorola Mobility Llc | Decoder for audio signal including generic audio and speech frames |
EP2544465A1 (en) * | 2011-07-05 | 2013-01-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method and apparatus for decomposing a stereo recording using frequency-domain processing employing a spectral weights generator |
US9129600B2 (en) | 2012-09-26 | 2015-09-08 | Google Technology Holdings LLC | Method and apparatus for encoding an audio signal |
KR101812123B1 (en) * | 2012-11-15 | 2017-12-26 | 가부시키가이샤 엔.티.티.도코모 | Audio coding device, audio coding method, audio coding program, audio decoding device, audio decoding method, and audio decoding program |
EP3353779B1 (en) | 2015-09-25 | 2020-06-24 | VoiceAge Corporation | Method and system for encoding a stereo sound signal using coding parameters of a primary channel to encode a secondary channel |
CN107742521B (en) | 2016-08-10 | 2021-08-13 | 华为技术有限公司 | Coding method and coder for multi-channel signal |
CN109215668B (en) * | 2017-06-30 | 2021-01-05 | 华为技术有限公司 | Method and device for encoding inter-channel phase difference parameters |
CN110728986B (en) * | 2018-06-29 | 2022-10-18 | 华为技术有限公司 | Coding method, decoding method, coding device and decoding device for stereo signal |
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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US5812971A (en) * | 1996-03-22 | 1998-09-22 | Lucent Technologies Inc. | Enhanced joint stereo coding method using temporal envelope shaping |
US5796842A (en) * | 1996-06-07 | 1998-08-18 | That Corporation | BTSC encoder |
US6463410B1 (en) * | 1998-10-13 | 2002-10-08 | Victor Company Of Japan, Ltd. | Audio signal processing apparatus |
US6226616B1 (en) * | 1999-06-21 | 2001-05-01 | Digital Theater Systems, Inc. | Sound quality of established low bit-rate audio coding systems without loss of decoder compatibility |
JP3335605B2 (en) * | 2000-03-13 | 2002-10-21 | 日本電信電話株式会社 | Stereo signal encoding method |
DE60209888T2 (en) * | 2001-05-08 | 2006-11-23 | Koninklijke Philips Electronics N.V. | CODING AN AUDIO SIGNAL |
JP2003084790A (en) * | 2001-09-17 | 2003-03-19 | Matsushita Electric Ind Co Ltd | Speech component emphasizing device |
CN1219415C (en) * | 2002-07-23 | 2005-09-14 | 华南理工大学 | 5.1 path surround sound earphone repeat signal processing method |
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2004
- 2004-02-20 SE SE0400417A patent/SE527670C2/en unknown
- 2004-12-15 BR BRPI0410856A patent/BRPI0410856B8/en active IP Right Grant
- 2004-12-15 CA CA2527971A patent/CA2527971C/en active Active
- 2004-12-15 JP JP2006518596A patent/JP4335917B2/en active Active
- 2004-12-15 EP EP07109801A patent/EP1845519B1/en active Active
- 2004-12-15 CN CN200710138487XA patent/CN101118747B/en not_active Expired - Fee Related
- 2004-12-15 AT AT04820553T patent/ATE371924T1/en not_active IP Right Cessation
- 2004-12-15 WO PCT/SE2004/001867 patent/WO2005059899A1/en active IP Right Grant
- 2004-12-15 PL PL04820553T patent/PL1623411T3/en unknown
- 2004-12-15 CN CNB2004800186630A patent/CN100559465C/en active Active
- 2004-12-15 BR BRPI0419281-8A patent/BRPI0419281B1/en not_active IP Right Cessation
- 2004-12-15 DE DE602004008613T patent/DE602004008613T2/en active Active
- 2004-12-15 ZA ZA200508980A patent/ZA200508980B/en unknown
- 2004-12-15 RU RU2005134365/09A patent/RU2305870C2/en active
- 2004-12-15 DE DE602004023240T patent/DE602004023240D1/en active Active
- 2004-12-15 AU AU2004298708A patent/AU2004298708B2/en active Active
- 2004-12-15 AT AT07109801T patent/ATE443317T1/en not_active IP Right Cessation
- 2004-12-15 EP EP04820553A patent/EP1623411B1/en active Active
- 2004-12-15 CA CA2690885A patent/CA2690885C/en active Active
- 2004-12-15 MX MXPA05012230A patent/MXPA05012230A/en active IP Right Grant
-
2006
- 2006-11-01 HK HK06112026.7A patent/HK1091585A1/en unknown
- 2006-11-01 HK HK08106066.8A patent/HK1115665A1/en unknown
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2007
- 2007-06-05 RU RU2007121143/09A patent/RU2425340C2/en active
- 2007-08-22 JP JP2007216374A patent/JP4589366B2/en not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |