DK0664943T3 - Adaptiv genmatrixbehandling af matrixbehandlede audiosignaler - Google Patents
Adaptiv genmatrixbehandling af matrixbehandlede audiosignalerInfo
- Publication number
- DK0664943T3 DK0664943T3 DK93923341.7T DK93923341T DK0664943T3 DK 0664943 T3 DK0664943 T3 DK 0664943T3 DK 93923341 T DK93923341 T DK 93923341T DK 0664943 T3 DK0664943 T3 DK 0664943T3
- Authority
- DK
- Denmark
- Prior art keywords
- signals
- matrix
- rematrix
- encoder
- decoder
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Algebra (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Stereophonic System (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/959,730 US5291557A (en) | 1992-10-13 | 1992-10-13 | Adaptive rematrixing of matrixed audio signals |
Publications (1)
Publication Number | Publication Date |
---|---|
DK0664943T3 true DK0664943T3 (da) | 1997-12-29 |
Family
ID=25502341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK93923341.7T DK0664943T3 (da) | 1992-10-13 | 1993-10-08 | Adaptiv genmatrixbehandling af matrixbehandlede audiosignaler |
Country Status (12)
Country | Link |
---|---|
US (1) | US5291557A (da) |
EP (1) | EP0664943B1 (da) |
JP (1) | JP3421343B2 (da) |
KR (1) | KR100285993B1 (da) |
AT (1) | ATE154487T1 (da) |
AU (1) | AU674357B2 (da) |
CA (1) | CA2142092C (da) |
DE (1) | DE69311569T2 (da) |
DK (1) | DK0664943T3 (da) |
ES (1) | ES2102685T3 (da) |
SG (1) | SG82553A1 (da) |
WO (1) | WO1994009608A1 (da) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5625696A (en) * | 1990-06-08 | 1997-04-29 | Harman International Industries, Inc. | Six-axis surround sound processor with improved matrix and cancellation control |
US5632005A (en) * | 1991-01-08 | 1997-05-20 | Ray Milton Dolby | Encoder/decoder for multidimensional sound fields |
US5463424A (en) * | 1993-08-03 | 1995-10-31 | Dolby Laboratories Licensing Corporation | Multi-channel transmitter/receiver system providing matrix-decoding compatible signals |
DE4409368A1 (de) * | 1994-03-18 | 1995-09-21 | Fraunhofer Ges Forschung | Verfahren zum Codieren mehrerer Audiosignale |
US7630500B1 (en) * | 1994-04-15 | 2009-12-08 | Bose Corporation | Spatial disassembly processor |
AU704693B2 (en) * | 1994-12-20 | 1999-04-29 | Dolby Laboratories Licensing Corporation | Method and apparatus for applying waveform prediction to subbands of a perceptual coding system |
US5625745A (en) * | 1995-01-31 | 1997-04-29 | Lucent Technologies Inc. | Noise imaging protection for multi-channel audio signals |
US5910995A (en) * | 1995-11-22 | 1999-06-08 | Sony Corporation Of Japan | DSP decoder for decoding analog SR encoded audio signals |
US5907623A (en) | 1995-11-22 | 1999-05-25 | Sony Corporation Of Japan | Audio noise reduction system implemented through digital signal processing |
US5749073A (en) * | 1996-03-15 | 1998-05-05 | Interval Research Corporation | System for automatically morphing audio information |
JP4478220B2 (ja) | 1997-05-29 | 2010-06-09 | ソニー株式会社 | 音場補正回路 |
KR100335611B1 (ko) * | 1997-11-20 | 2002-10-09 | 삼성전자 주식회사 | 비트율 조절이 가능한 스테레오 오디오 부호화/복호화 방법 및 장치 |
US6252905B1 (en) | 1998-02-05 | 2001-06-26 | International Business Machines Corporation | Real-time evaluation of compressed picture quality within a digital video encoder |
US6624873B1 (en) | 1998-05-05 | 2003-09-23 | Dolby Laboratories Licensing Corporation | Matrix-encoded surround-sound channels in a discrete digital sound format |
WO2002003382A1 (en) * | 2000-07-05 | 2002-01-10 | Koninklijke Philips Electronics N.V. | Method of converting line spectral frequencies back to linear prediction coefficients |
JP2002175097A (ja) * | 2000-12-06 | 2002-06-21 | Yamaha Corp | 音声信号のエンコード/圧縮装置およびデコード/伸長装置 |
TW510144B (en) * | 2000-12-27 | 2002-11-11 | C Media Electronics Inc | Method and structure to output four-channel analog signal using two channel audio hardware |
US7454257B2 (en) * | 2001-02-08 | 2008-11-18 | Warner Music Group | Apparatus and method for down converting multichannel programs to dual channel programs using a smart coefficient generator |
US7668317B2 (en) * | 2001-05-30 | 2010-02-23 | Sony Corporation | Audio post processing in DVD, DTV and other audio visual products |
AU2003209957A1 (en) * | 2002-04-10 | 2003-10-20 | Koninklijke Philips Electronics N.V. | Coding of stereo signals |
WO2003092260A2 (en) * | 2002-04-23 | 2003-11-06 | Realnetworks, Inc. | Method and apparatus for preserving matrix surround information in encoded audio/video |
US7428440B2 (en) * | 2002-04-23 | 2008-09-23 | Realnetworks, Inc. | Method and apparatus for preserving matrix surround information in encoded audio/video |
US7318027B2 (en) | 2003-02-06 | 2008-01-08 | Dolby Laboratories Licensing Corporation | Conversion of synthesized spectral components for encoding and low-complexity transcoding |
US7542815B1 (en) | 2003-09-04 | 2009-06-02 | Akita Blue, Inc. | Extraction of left/center/right information from two-channel stereo sources |
SE0400998D0 (sv) * | 2004-04-16 | 2004-04-16 | Cooding Technologies Sweden Ab | Method for representing multi-channel audio signals |
US7490044B2 (en) | 2004-06-08 | 2009-02-10 | Bose Corporation | Audio signal processing |
US7787631B2 (en) * | 2004-11-30 | 2010-08-31 | Agere Systems Inc. | Parametric coding of spatial audio with cues based on transmitted channels |
KR100682904B1 (ko) * | 2004-12-01 | 2007-02-15 | 삼성전자주식회사 | 공간 정보를 이용한 다채널 오디오 신호 처리 장치 및 방법 |
AU2006255662B2 (en) * | 2005-06-03 | 2012-08-23 | Dolby Laboratories Licensing Corporation | Apparatus and method for encoding audio signals with decoding instructions |
FR2895617A1 (fr) * | 2005-12-26 | 2007-06-29 | Jacques Gerald Foin | Systeme d'appel detenus audio gere par micro automates sur reseau lon et matrice audio. exploitation en alternat audio par haut parleurs reversibles commutes par les micros automates |
EP1845699B1 (en) | 2006-04-13 | 2009-11-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio signal decorrelator |
WO2010075377A1 (en) | 2008-12-24 | 2010-07-01 | Dolby Laboratories Licensing Corporation | Audio signal loudness determination and modification in the frequency domain |
US11657788B2 (en) | 2009-05-27 | 2023-05-23 | Dolby International Ab | Efficient combined harmonic transposition |
TWI591625B (zh) | 2009-05-27 | 2017-07-11 | 杜比國際公司 | 從訊號的低頻成份產生該訊號之高頻成份的系統與方法,及其機上盒、電腦程式產品、軟體程式及儲存媒體 |
US9078077B2 (en) | 2010-10-21 | 2015-07-07 | Bose Corporation | Estimation of synthetic audio prototypes with frequency-based input signal decomposition |
WO2013160729A1 (en) * | 2012-04-26 | 2013-10-31 | Nokia Corporation | Backwards compatible audio representation |
WO2015017584A1 (en) | 2013-07-30 | 2015-02-05 | Dts, Inc. | Matrix decoder with constant-power pairwise panning |
WO2015081293A1 (en) | 2013-11-27 | 2015-06-04 | Dts, Inc. | Multiplet-based matrix mixing for high-channel count multichannel audio |
CN116806000B (zh) * | 2023-08-18 | 2024-01-30 | 广东保伦电子股份有限公司 | 一种多通道任意扩展的分布式音频矩阵 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1514162A (en) * | 1974-03-25 | 1978-06-14 | Ruggles W | Directional enhancement system for quadraphonic decoders |
GB1526195A (en) * | 1975-11-07 | 1978-09-27 | British Broadcasting Corp | Transmission or recording of quadraphonic signals |
US4799260A (en) * | 1985-03-07 | 1989-01-17 | Dolby Laboratories Licensing Corporation | Variable matrix decoder |
US5109417A (en) * | 1989-01-27 | 1992-04-28 | Dolby Laboratories Licensing Corporation | Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio |
SG82549A1 (en) * | 1989-01-27 | 2001-08-21 | Dolby Lab Licensing Corp | Coded signal formatting for encoder and decoder of high-quality audio |
GB9103207D0 (en) * | 1991-02-15 | 1991-04-03 | Gerzon Michael A | Stereophonic sound reproduction system |
-
1992
- 1992-10-13 US US07/959,730 patent/US5291557A/en not_active Expired - Lifetime
-
1993
- 1993-10-08 DE DE69311569T patent/DE69311569T2/de not_active Expired - Lifetime
- 1993-10-08 KR KR1019950700769A patent/KR100285993B1/ko not_active IP Right Cessation
- 1993-10-08 AT AT93923341T patent/ATE154487T1/de active
- 1993-10-08 SG SG9608577A patent/SG82553A1/en unknown
- 1993-10-08 AU AU53266/94A patent/AU674357B2/en not_active Expired
- 1993-10-08 CA CA002142092A patent/CA2142092C/en not_active Expired - Lifetime
- 1993-10-08 WO PCT/US1993/009665 patent/WO1994009608A1/en active IP Right Grant
- 1993-10-08 ES ES93923341T patent/ES2102685T3/es not_active Expired - Lifetime
- 1993-10-08 JP JP51017094A patent/JP3421343B2/ja not_active Expired - Lifetime
- 1993-10-08 DK DK93923341.7T patent/DK0664943T3/da active
- 1993-10-08 EP EP93923341A patent/EP0664943B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2102685T3 (es) | 1997-08-01 |
WO1994009608A1 (en) | 1994-04-28 |
EP0664943A1 (en) | 1995-08-02 |
CA2142092A1 (en) | 1994-04-28 |
AU674357B2 (en) | 1996-12-19 |
KR100285993B1 (ko) | 2001-04-16 |
JP3421343B2 (ja) | 2003-06-30 |
DE69311569T2 (de) | 1997-11-13 |
US5291557A (en) | 1994-03-01 |
SG82553A1 (en) | 2001-08-21 |
KR950703266A (ko) | 1995-08-23 |
CA2142092C (en) | 2004-09-21 |
DE69311569D1 (de) | 1997-07-17 |
JPH08502157A (ja) | 1996-03-05 |
ATE154487T1 (de) | 1997-06-15 |
AU5326694A (en) | 1994-05-09 |
EP0664943B1 (en) | 1997-06-11 |
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