WO1990016136A1 - Codage polyphonique - Google Patents
Codage polyphonique Download PDFInfo
- Publication number
- WO1990016136A1 WO1990016136A1 PCT/GB1990/000928 GB9000928W WO9016136A1 WO 1990016136 A1 WO1990016136 A1 WO 1990016136A1 GB 9000928 W GB9000928 W GB 9000928W WO 9016136 A1 WO9016136 A1 WO 9016136A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- filter
- channel
- difference
- sum
- Prior art date
Links
- 230000003044 adaptive effect Effects 0.000 claims abstract description 35
- 230000006978 adaptation Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 23
- 238000001914 filtration Methods 0.000 claims description 5
- 230000003595 spectral effect Effects 0.000 claims description 4
- 230000004044 response Effects 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 230000002087 whitening effect Effects 0.000 abstract description 13
- 230000002829 reductive effect Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 14
- 238000012546 transfer Methods 0.000 description 13
- 230000008901 benefit Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000001934 delay Effects 0.000 description 5
- 230000001364 causal effect Effects 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009795 derivation Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000010561 standard procedure Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 238000005311 autocorrelation function Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012505 colouration Methods 0.000 description 1
- 238000010219 correlation analysis Methods 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000013383 initial experiment Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/86—Arrangements characterised by the broadcast information itself
- H04H20/88—Stereophonic broadcast systems
-
- 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
Definitions
- H interchannel transfer function
- One possible way of removing the redundancy between two input signals (or predicting one from the other) would be to connect between the two channels an adaptive predictor filter whose slowly changing parameters are calculated by standard techniques (such as, for example, block cross-correlation analysis or sequential lattice adaptation).
- the two signals will originate from sound sources within a room, and the acoustic transfer function between each source and each microphone will be characterised typically by weak poles (from room resonances) and strong zeros (due to absorption and destructive interference).
- Both the above residual-only and hybrid (i.e. residual plus parameters) embodiments are preferably employed, as described, to predict the difference channel from the sum channel.
- the same advantages of retaining the stereo image (albeit with a decrease in SNR) ' are found when the input channels are left and right, rather than sum and difference, provided the problem of causality is overcome in some manner (e.g. by inserting a relatively long fixed delay in one or other path).
- the scope of the invention therefore encompasses this also.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Acoustics & Sound (AREA)
- Computational Linguistics (AREA)
- Mathematical Physics (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Stereophonic System (AREA)
Abstract
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69018989T DE69018989T3 (de) | 1989-06-15 | 1990-06-15 | Polyphonische kodierung. |
EP90909155A EP0478615B2 (fr) | 1989-06-15 | 1990-06-15 | Codage polyphonique |
NO914947A NO180030C (no) | 1989-06-15 | 1991-12-13 | Polyfonisk koding |
FI915873A FI915873A0 (fi) | 1989-06-15 | 1991-12-13 | Polyfon kodning. |
HK137196A HK137196A (en) | 1989-06-15 | 1996-07-25 | Polyphonic coding |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB898913758A GB8913758D0 (en) | 1989-06-15 | 1989-06-15 | Polyphonic coding |
GB8913758.2 | 1989-06-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1990016136A1 true WO1990016136A1 (fr) | 1990-12-27 |
Family
ID=10658483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1990/000928 WO1990016136A1 (fr) | 1989-06-15 | 1990-06-15 | Codage polyphonique |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP0478615B2 (fr) |
JP (1) | JP2703405B2 (fr) |
AT (1) | ATE121900T1 (fr) |
AU (1) | AU640667B2 (fr) |
CA (1) | CA2058984C (fr) |
DE (1) | DE69018989T3 (fr) |
DK (1) | DK0478615T3 (fr) |
ES (1) | ES2071823T3 (fr) |
FI (1) | FI915873A0 (fr) |
GB (1) | GB8913758D0 (fr) |
HK (1) | HK137196A (fr) |
NO (1) | NO180030C (fr) |
WO (1) | WO1990016136A1 (fr) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992012607A1 (fr) * | 1991-01-08 | 1992-07-23 | Dolby Laboratories Licensing Corporation | Codeur/decodeur pour champs sonores a dimensions multiples |
WO1992012608A1 (fr) * | 1991-01-08 | 1992-07-23 | Dolby Laboratories Licensing Corporation | Decodeur pour un nombre variable de representations sous forme de canaux de champs sonores a dimensions multiples |
WO1993009644A1 (fr) * | 1991-11-08 | 1993-05-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Procede de reduction de donnees dans la transmission et/ou la mise en memoire de signaux numeriques de plusieurs canaux dependants |
EP0574145A1 (fr) * | 1992-06-08 | 1993-12-15 | International Business Machines Corporation | Codage et décodage d'information audio |
EP0608937A1 (fr) * | 1993-01-27 | 1994-08-03 | Koninklijke Philips Electronics N.V. | Dispositif de traitement de signaux audio pour dériver un signal de canal central et système de reproduction audiovisuelle comprenant un tel dispositif de traitement |
FR2706053A1 (fr) * | 1993-06-05 | 1994-12-09 | Bosch Gmbh Robert | Procédé pour réduire la redondance des données. |
EP0655876A1 (fr) * | 1993-11-23 | 1995-05-31 | AT&T Corp. | Codage perceptuel de signaux audio |
WO1997004621A1 (fr) | 1995-07-20 | 1997-02-06 | Robert Bosch Gmbh | Procede pour reduire la redondance lors du codage de signaux multicanaux et dispositif pour decoder des signaux multicanaux a redondance reduite |
GB2303516A (en) * | 1995-07-20 | 1997-02-19 | Plessey Telecomm | Teleconferencing |
US6016473A (en) * | 1998-04-07 | 2000-01-18 | Dolby; Ray M. | Low bit-rate spatial coding method and system |
WO2000019413A1 (fr) * | 1998-09-30 | 2000-04-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Codage et decodage de signaux multi-canaux |
WO2002023528A1 (fr) * | 2000-09-15 | 2002-03-21 | Telefonaktiebolaget Lm Ericsson | Codage et decodage de signaux multicanal |
WO2002023529A1 (fr) * | 2000-09-15 | 2002-03-21 | Telefonaktiebolaget Lm Ericsson | Codage et décodage de signaux multiplex |
WO2002023527A1 (fr) * | 2000-09-15 | 2002-03-21 | Telefonaktiebolaget Lm Ericsson | Codage et decodage de signaux multi-canaux |
FR2821475A1 (fr) * | 2001-02-23 | 2002-08-30 | France Telecom | Procede et dispositif de reconstruction spectrale de signaux a plusieurs voies, notamment de signaux stereophoniques |
WO2006048815A1 (fr) * | 2004-11-04 | 2006-05-11 | Koninklijke Philips Electronics N.V. | Codage et decodage d'une serie de signaux |
EP2264698A1 (fr) * | 2008-04-04 | 2010-12-22 | Panasonic Corporation | Convertisseur de signal stéréo, inverseur de signal stéréo et leurs procédés |
EP2375409A1 (fr) * | 2010-04-09 | 2011-10-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Codeur audio, décodeur audio et procédés connexes pour le traitement de signaux audio multicanaux au moyen d'une prédiction complexe |
WO2013045691A1 (fr) * | 2011-09-29 | 2013-04-04 | Dolby International Ab | Réduction de bruit de radio fm stéréo basée sur une prédiction |
US9380387B2 (en) | 2014-08-01 | 2016-06-28 | Klipsch Group, Inc. | Phase independent surround speaker |
US9591425B2 (en) | 2008-05-23 | 2017-03-07 | Koninklijke Philips N.V. | Parametric stereo upmix apparatus, a parametric stereo decoder, a parametric stereo downmix apparatus, a parametric stereo encoder |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19829284C2 (de) * | 1998-05-15 | 2000-03-16 | Fraunhofer Ges Forschung | Verfahren und Vorrichtung zum Verarbeiten eines zeitlichen Stereosignals und Verfahren und Vorrichtung zum Decodieren eines unter Verwendung einer Prädiktion über der Frequenz codierten Audiobitstroms |
CN103716748A (zh) * | 2007-03-01 | 2014-04-09 | 杰里·马哈布比 | 音频空间化及环境模拟 |
KR101437896B1 (ko) | 2010-04-09 | 2014-09-16 | 돌비 인터네셔널 에이비 | Mdct-기반의 복소수 예측 스테레오 코딩 |
AU2011240239B2 (en) | 2010-04-13 | 2014-06-26 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Audio or video encoder, audio or video decoder and related methods for processing multi-channel audio or video signals using a variable prediction direction |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0273567A1 (fr) * | 1986-11-24 | 1988-07-06 | BRITISH TELECOMMUNICATIONS public limited company | Système de transmission |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU546069B2 (en) * | 1981-09-07 | 1985-08-15 | Kahn, Leonard Richard | Am stereo distortion correction |
JPH0761043B2 (ja) * | 1986-04-10 | 1995-06-28 | 株式会社東芝 | ステレオ音声伝送蓄積方式 |
-
1989
- 1989-06-15 GB GB898913758A patent/GB8913758D0/en active Pending
-
1990
- 1990-06-15 ES ES90909155T patent/ES2071823T3/es not_active Expired - Lifetime
- 1990-06-15 EP EP90909155A patent/EP0478615B2/fr not_active Expired - Lifetime
- 1990-06-15 DE DE69018989T patent/DE69018989T3/de not_active Expired - Lifetime
- 1990-06-15 DK DK90909155.5T patent/DK0478615T3/da active
- 1990-06-15 CA CA002058984A patent/CA2058984C/fr not_active Expired - Lifetime
- 1990-06-15 JP JP2508936A patent/JP2703405B2/ja not_active Expired - Lifetime
- 1990-06-15 WO PCT/GB1990/000928 patent/WO1990016136A1/fr active IP Right Grant
- 1990-06-15 AT AT90909155T patent/ATE121900T1/de not_active IP Right Cessation
- 1990-06-15 AU AU58379/90A patent/AU640667B2/en not_active Ceased
-
1991
- 1991-12-13 FI FI915873A patent/FI915873A0/fi unknown
- 1991-12-13 NO NO914947A patent/NO180030C/no unknown
-
1996
- 1996-07-25 HK HK137196A patent/HK137196A/xx not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0273567A1 (fr) * | 1986-11-24 | 1988-07-06 | BRITISH TELECOMMUNICATIONS public limited company | Système de transmission |
Non-Patent Citations (2)
Title |
---|
IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS '86, 22-25 June 1986, Toronto, CA, Conference Record, Volume 2 of 3, IEEE, (US), S. MINAMI, "A Stereophonic Voice Coding Method for Teleconferencing", pages 1305-1309. * |
MILCOM '86, 1986 IEEE MILITARY COMMUNICATIONS CONFERENCE, 5-9 October 1986, Monterey, California, Conference Record, Volume 3 of 3, IEEE, (US), A. REICHMAN et al., "Applications of Least-Square Lattice Filters in Adaptive Data Communication", pages 4751-4754. * |
Cited By (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5583962A (en) * | 1991-01-08 | 1996-12-10 | Dolby Laboratories Licensing Corporation | Encoder/decoder for multidimensional sound fields |
WO1992012608A1 (fr) * | 1991-01-08 | 1992-07-23 | Dolby Laboratories Licensing Corporation | Decodeur pour un nombre variable de representations sous forme de canaux de champs sonores a dimensions multiples |
US5633981A (en) * | 1991-01-08 | 1997-05-27 | Dolby Laboratories Licensing Corporation | Method and apparatus for adjusting dynamic range and gain in an encoder/decoder for multidimensional sound fields |
US5909664A (en) * | 1991-01-08 | 1999-06-01 | Ray Milton Dolby | Method and apparatus for encoding and decoding audio information representing three-dimensional sound fields |
US5274740A (en) * | 1991-01-08 | 1993-12-28 | Dolby Laboratories Licensing Corporation | Decoder for variable number of channel presentation of multidimensional sound fields |
WO1992012607A1 (fr) * | 1991-01-08 | 1992-07-23 | Dolby Laboratories Licensing Corporation | Codeur/decodeur pour champs sonores a dimensions multiples |
WO1993009644A1 (fr) * | 1991-11-08 | 1993-05-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Procede de reduction de donnees dans la transmission et/ou la mise en memoire de signaux numeriques de plusieurs canaux dependants |
US5812672A (en) * | 1991-11-08 | 1998-09-22 | Fraunhofer-Ges | Method for reducing data in the transmission and/or storage of digital signals of several dependent channels |
AU659228B2 (en) * | 1991-11-08 | 1995-05-11 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Process for reducing data in the transmission and/or storage of digital signals from several dependent channels |
EP0574145A1 (fr) * | 1992-06-08 | 1993-12-15 | International Business Machines Corporation | Codage et décodage d'information audio |
EP0608937A1 (fr) * | 1993-01-27 | 1994-08-03 | Koninklijke Philips Electronics N.V. | Dispositif de traitement de signaux audio pour dériver un signal de canal central et système de reproduction audiovisuelle comprenant un tel dispositif de traitement |
GB2279214A (en) * | 1993-06-05 | 1994-12-21 | Bosch Gmbh Robert | Method of reducing redundancy in a multi-channel data transmission |
FR2706053A1 (fr) * | 1993-06-05 | 1994-12-09 | Bosch Gmbh Robert | Procédé pour réduire la redondance des données. |
US5511093A (en) * | 1993-06-05 | 1996-04-23 | Robert Bosch Gmbh | Method for reducing data in a multi-channel data transmission |
GB2279214B (en) * | 1993-06-05 | 1997-12-10 | Bosch Gmbh Robert | Method of reducing redundancy |
US5717764A (en) * | 1993-11-23 | 1998-02-10 | Lucent Technologies Inc. | Global masking thresholding for use in perceptual coding |
US5488665A (en) * | 1993-11-23 | 1996-01-30 | At&T Corp. | Multi-channel perceptual audio compression system with encoding mode switching among matrixed channels |
EP0655876A1 (fr) * | 1993-11-23 | 1995-05-31 | AT&T Corp. | Codage perceptuel de signaux audio |
GB2303516A (en) * | 1995-07-20 | 1997-02-19 | Plessey Telecomm | Teleconferencing |
WO1997004621A1 (fr) | 1995-07-20 | 1997-02-06 | Robert Bosch Gmbh | Procede pour reduire la redondance lors du codage de signaux multicanaux et dispositif pour decoder des signaux multicanaux a redondance reduite |
US6016473A (en) * | 1998-04-07 | 2000-01-18 | Dolby; Ray M. | Low bit-rate spatial coding method and system |
WO2000019413A1 (fr) * | 1998-09-30 | 2000-04-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Codage et decodage de signaux multi-canaux |
US6393392B1 (en) | 1998-09-30 | 2002-05-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Multi-channel signal encoding and decoding |
AU756829B2 (en) * | 1998-09-30 | 2003-01-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Multi-channel signal encoding and decoding |
KR100415356B1 (ko) * | 1998-09-30 | 2004-01-16 | 텔레폰악티에볼라겟엘엠에릭슨(펍) | 다중 채널 신호 인코딩 및 디코딩 방법 및 장치 |
US7263480B2 (en) | 2000-09-15 | 2007-08-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Multi-channel signal encoding and decoding |
WO2002023528A1 (fr) * | 2000-09-15 | 2002-03-21 | Telefonaktiebolaget Lm Ericsson | Codage et decodage de signaux multicanal |
WO2002023529A1 (fr) * | 2000-09-15 | 2002-03-21 | Telefonaktiebolaget Lm Ericsson | Codage et décodage de signaux multiplex |
WO2002023527A1 (fr) * | 2000-09-15 | 2002-03-21 | Telefonaktiebolaget Lm Ericsson | Codage et decodage de signaux multi-canaux |
US7346110B2 (en) | 2000-09-15 | 2008-03-18 | Telefonaktiebolaget Lm Ericsson (Publ) | Multi-channel signal encoding and decoding |
US7283957B2 (en) | 2000-09-15 | 2007-10-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Multi-channel signal encoding and decoding |
FR2821475A1 (fr) * | 2001-02-23 | 2002-08-30 | France Telecom | Procede et dispositif de reconstruction spectrale de signaux a plusieurs voies, notamment de signaux stereophoniques |
WO2002069326A1 (fr) * | 2001-02-23 | 2002-09-06 | France Telecom | Procede et dispositif de reconstruction spectrale de signaux a plusieurs voies |
WO2006048815A1 (fr) * | 2004-11-04 | 2006-05-11 | Koninklijke Philips Electronics N.V. | Codage et decodage d'une serie de signaux |
EP2264698A1 (fr) * | 2008-04-04 | 2010-12-22 | Panasonic Corporation | Convertisseur de signal stéréo, inverseur de signal stéréo et leurs procédés |
EP2264698A4 (fr) * | 2008-04-04 | 2012-06-13 | Panasonic Corp | Convertisseur de signal stéréo, inverseur de signal stéréo et leurs procédés |
US10136237B2 (en) | 2008-05-23 | 2018-11-20 | Koninklijke Philips N.V. | Parametric stereo upmix apparatus, a parametric stereo decoder, a parametric stereo downmix apparatus, a parametric stereo encoder |
US9591425B2 (en) | 2008-05-23 | 2017-03-07 | Koninklijke Philips N.V. | Parametric stereo upmix apparatus, a parametric stereo decoder, a parametric stereo downmix apparatus, a parametric stereo encoder |
EP2947654A1 (fr) * | 2010-04-09 | 2015-11-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Codeur audio, décodeur audio et procédés connexes pour le traitement de signaux audio multicanaux au moyen d'une prédiction complexe et d'un indicateur de transformation de longueur |
RU2577195C2 (ru) * | 2010-04-09 | 2016-03-10 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Аудиокодер, аудиодекодер и связанные способы обработки многоканальных аудиосигналов с использованием комплексного предсказания |
US8655670B2 (en) | 2010-04-09 | 2014-02-18 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Audio encoder, audio decoder and related methods for processing multi-channel audio signals using complex prediction |
EP2375409A1 (fr) * | 2010-04-09 | 2011-10-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Codeur audio, décodeur audio et procédés connexes pour le traitement de signaux audio multicanaux au moyen d'une prédiction complexe |
WO2011124473A1 (fr) * | 2010-04-09 | 2011-10-13 | Fraunhofer-Gesellschaft Der Angewandten Forschung E.V. | Codeur audio, décodeur audio et procédés correspondants pour traiter des signaux audio multicanaux à l'aide d'une prédiction complexe |
EP2947655A1 (fr) * | 2010-04-09 | 2015-11-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Codeur audio, décodeur audio et procédés connexes pour le traitement de signaux audio multicanaux au moyen d'une prédiction complexe et de signalisation d'estimation explicite |
EP2947653A1 (fr) * | 2010-04-09 | 2015-11-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Codeur audio, décodeur audio et procédés connexes pour le traitement de signaux audio multicanaux au moyen d'une prédiction complexe et d'informations sur le type de fenêtre |
EP2947652A1 (fr) * | 2010-04-09 | 2015-11-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Décodeur audio et procédé associé permettant de décoder un signal audio multicanal codé à l'aide d'une prédiction complexe |
EP2947656A1 (fr) * | 2010-04-09 | 2015-11-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Codeur audio, décodeur audio et procédés connexes pour le traitement de signaux audio multicanaux au moyen d'une prédiction complexe et de codage de différence |
EP2947657A1 (fr) * | 2010-04-09 | 2015-11-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Codeur audio, décodeur audio et procédés connexes pour le traitement de signaux audio multicanaux au moyen d'une prédiction et d'un indicateur réel |
CN103098126A (zh) * | 2010-04-09 | 2013-05-08 | 弗兰霍菲尔运输应用研究公司 | 音频编码器、音频解码器及利用复预测处理多信道音频信号的相关方法 |
WO2013045691A1 (fr) * | 2011-09-29 | 2013-04-04 | Dolby International Ab | Réduction de bruit de radio fm stéréo basée sur une prédiction |
US9191045B2 (en) | 2011-09-29 | 2015-11-17 | Dolby International Ab | Prediction-based FM stereo radio noise reduction |
US9380387B2 (en) | 2014-08-01 | 2016-06-28 | Klipsch Group, Inc. | Phase independent surround speaker |
Also Published As
Publication number | Publication date |
---|---|
CA2058984A1 (fr) | 1990-12-16 |
EP0478615B2 (fr) | 1998-04-15 |
ATE121900T1 (de) | 1995-05-15 |
NO914947L (no) | 1992-02-13 |
DE69018989T2 (de) | 1995-09-07 |
NO180030B (no) | 1996-10-21 |
JP2703405B2 (ja) | 1998-01-26 |
EP0478615A1 (fr) | 1992-04-08 |
FI915873A0 (fi) | 1991-12-13 |
DK0478615T3 (da) | 1995-07-17 |
HK137196A (en) | 1996-08-02 |
AU5837990A (en) | 1991-01-08 |
DE69018989D1 (de) | 1995-06-01 |
DE69018989T3 (de) | 1998-11-19 |
NO180030C (no) | 1997-01-29 |
JPH04506141A (ja) | 1992-10-22 |
AU640667B2 (en) | 1993-09-02 |
NO914947D0 (no) | 1991-12-13 |
EP0478615B1 (fr) | 1995-04-26 |
ES2071823T3 (es) | 1995-07-01 |
CA2058984C (fr) | 1998-12-01 |
GB8913758D0 (en) | 1989-08-02 |
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