DE69311569T2 - Adaptive Rematrixierung von matrixförmigen Audiosignalen - Google Patents

Adaptive Rematrixierung von matrixförmigen Audiosignalen

Info

Publication number
DE69311569T2
DE69311569T2 DE69311569T DE69311569T DE69311569T2 DE 69311569 T2 DE69311569 T2 DE 69311569T2 DE 69311569 T DE69311569 T DE 69311569T DE 69311569 T DE69311569 T DE 69311569T DE 69311569 T2 DE69311569 T2 DE 69311569T2
Authority
DE
Germany
Prior art keywords
signals
matrix
rematrix
encoder
decoder
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.)
Expired - Lifetime
Application number
DE69311569T
Other languages
English (en)
Other versions
DE69311569D1 (de
Inventor
Mark Davis
Stephen Vernon
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.)
Dolby Laboratories Licensing Corp
Original Assignee
Dolby Laboratories Licensing Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25502341&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69311569(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dolby Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Publication of DE69311569D1 publication Critical patent/DE69311569D1/de
Application granted granted Critical
Publication of DE69311569T2 publication Critical patent/DE69311569T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (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)
DE69311569T 1992-10-13 1993-10-08 Adaptive Rematrixierung von matrixförmigen Audiosignalen Expired - Lifetime DE69311569T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/959,730 US5291557A (en) 1992-10-13 1992-10-13 Adaptive rematrixing of matrixed audio signals
PCT/US1993/009665 WO1994009608A1 (en) 1992-10-13 1993-10-08 Adaptive rematrixing of matrixed audio signals

Publications (2)

Publication Number Publication Date
DE69311569D1 DE69311569D1 (de) 1997-07-17
DE69311569T2 true DE69311569T2 (de) 1997-11-13

Family

ID=25502341

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69311569T Expired - Lifetime DE69311569T2 (de) 1992-10-13 1993-10-08 Adaptive Rematrixierung von matrixförmigen Audiosignalen

Country Status (12)

Country Link
US (1) US5291557A (de)
EP (1) EP0664943B1 (de)
JP (1) JP3421343B2 (de)
KR (1) KR100285993B1 (de)
AT (1) ATE154487T1 (de)
AU (1) AU674357B2 (de)
CA (1) CA2142092C (de)
DE (1) DE69311569T2 (de)
DK (1) DK0664943T3 (de)
ES (1) ES2102685T3 (de)
SG (1) SG82553A1 (de)
WO (1) WO1994009608A1 (de)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
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
ES2143673T3 (es) * 1994-12-20 2000-05-16 Dolby Lab Licensing Corp Metodo y aparato para aplicar una prediccion de formas de onda a subbandas de un sistema codificador perceptual.
US5625745A (en) * 1995-01-31 1997-04-29 Lucent Technologies Inc. Noise imaging protection for multi-channel audio signals
US5907623A (en) * 1995-11-22 1999-05-25 Sony Corporation Of Japan Audio noise reduction system implemented through digital signal processing
US5910995A (en) * 1995-11-22 1999-06-08 Sony Corporation Of Japan DSP decoder for decoding analog SR encoded audio signals
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
JP2004502204A (ja) * 2000-07-05 2004-01-22 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ ラインスペクトル周波数をフィルタ係数に変換する方法
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
RU2316154C2 (ru) * 2002-04-10 2008-01-27 Конинклейке Филипс Электроникс Н.В. Кодирование стереофонических сигналов
US7428440B2 (en) * 2002-04-23 2008-09-23 Realnetworks, Inc. Method and apparatus for preserving matrix surround information in encoded audio/video
WO2003092260A2 (en) * 2002-04-23 2003-11-06 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
KR101251426B1 (ko) * 2005-06-03 2013-04-05 돌비 레버러토리즈 라이쎈싱 코오포레이션 디코딩 명령으로 오디오 신호를 인코딩하기 위한 장치 및방법
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
DE602006010323D1 (de) 2006-04-13 2009-12-24 Fraunhofer Ges Forschung Audiosignaldekorrelator
EP2374211B1 (de) 2008-12-24 2012-04-04 Dolby Laboratories Licensing Corporation Audiosignallautheitbestimmung und modifikation im frequenzbereich
TWI556227B (zh) 2009-05-27 2016-11-01 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
US11657788B2 (en) 2009-05-27 2023-05-23 Dolby International Ab Efficient combined harmonic transposition
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
PL3028474T3 (pl) 2013-07-30 2019-06-28 Dts, Inc. Dekoder matrycowy z panoramowaniem parami o stałej mocy
EP3444815B1 (de) 2013-11-27 2020-01-08 DTS, Inc. Multiplet-basierte matrixmischung für mehrkanalaudio mit hoher kanalzahl
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)

* Cited by examiner, † Cited by third party
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
CA2332407C (en) * 1989-01-27 2002-03-05 Dolby Laboratories Licensing Corporation Method for defining coding information
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
GB9103207D0 (en) * 1991-02-15 1991-04-03 Gerzon Michael A Stereophonic sound reproduction system

Also Published As

Publication number Publication date
ES2102685T3 (es) 1997-08-01
ATE154487T1 (de) 1997-06-15
DE69311569D1 (de) 1997-07-17
EP0664943B1 (de) 1997-06-11
EP0664943A1 (de) 1995-08-02
AU5326694A (en) 1994-05-09
WO1994009608A1 (en) 1994-04-28
CA2142092A1 (en) 1994-04-28
JP3421343B2 (ja) 2003-06-30
SG82553A1 (en) 2001-08-21
KR950703266A (ko) 1995-08-23
AU674357B2 (en) 1996-12-19
CA2142092C (en) 2004-09-21
DK0664943T3 (da) 1997-12-29
KR100285993B1 (ko) 2001-04-16
JPH08502157A (ja) 1996-03-05
US5291557A (en) 1994-03-01

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