DE60021756T2 - Verfahren und anordnung zur ableitung mindestens eines audiosignals aus zwei oder mehr audiosignalen - Google Patents

Verfahren und anordnung zur ableitung mindestens eines audiosignals aus zwei oder mehr audiosignalen Download PDF

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Publication number
DE60021756T2
DE60021756T2 DE60021756T DE60021756T DE60021756T2 DE 60021756 T2 DE60021756 T2 DE 60021756T2 DE 60021756 T DE60021756 T DE 60021756T DE 60021756 T DE60021756 T DE 60021756T DE 60021756 T2 DE60021756 T2 DE 60021756T2
Authority
DE
Germany
Prior art keywords
signals
antidominant
signal
output
audio signals
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 - Fee Related
Application number
DE60021756T
Other languages
German (de)
English (en)
Other versions
DE60021756D1 (de
Inventor
J. Kenneth GUNDRY
W. James FOSGATE
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
Priority claimed from US09/532,711 external-priority patent/US6920223B1/en
Application filed by Dolby Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Publication of DE60021756D1 publication Critical patent/DE60021756D1/de
Application granted granted Critical
Publication of DE60021756T2 publication Critical patent/DE60021756T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Toys (AREA)
DE60021756T 1999-12-03 2000-11-29 Verfahren und anordnung zur ableitung mindestens eines audiosignals aus zwei oder mehr audiosignalen Expired - Fee Related DE60021756T2 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US45481099A 1999-12-03 1999-12-03
US454810 1999-12-03
US09/532,711 US6920223B1 (en) 1999-12-03 2000-03-22 Method for deriving at least three audio signals from two input audio signals
US532711 2000-03-22
US09/602,585 US6970567B1 (en) 1999-12-03 2000-06-21 Method and apparatus for deriving at least one audio signal from two or more input audio signals
US602585 2000-06-21
PCT/US2000/032537 WO2001041505A1 (en) 1999-12-03 2000-11-29 Method and apparatus for deriving at least one audio signal from two or more input audio signals

Publications (2)

Publication Number Publication Date
DE60021756D1 DE60021756D1 (de) 2005-09-08
DE60021756T2 true DE60021756T2 (de) 2006-04-20

Family

ID=27412620

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60021756T Expired - Fee Related DE60021756T2 (de) 1999-12-03 2000-11-29 Verfahren und anordnung zur ableitung mindestens eines audiosignals aus zwei oder mehr audiosignalen

Country Status (13)

Country Link
US (1) US6970567B1 (enExample)
EP (1) EP1234485B1 (enExample)
JP (1) JP2003515771A (enExample)
CN (1) CN1250046C (enExample)
AT (1) ATE301384T1 (enExample)
AU (1) AU784083B2 (enExample)
BR (1) BR0016741A (enExample)
CA (1) CA2392602A1 (enExample)
DE (1) DE60021756T2 (enExample)
HK (1) HK1054838B (enExample)
MX (1) MXPA02005520A (enExample)
TW (1) TW506227B (enExample)
WO (1) WO2001041505A1 (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4624643B2 (ja) 2000-08-31 2011-02-02 ドルビー・ラボラトリーズ・ライセンシング・コーポレーション オーディオ・マトリックス・デコーディング装置に関する方法
US7003467B1 (en) 2000-10-06 2006-02-21 Digital Theater Systems, Inc. Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio
CA2992125C (en) 2004-03-01 2018-09-25 Dolby Laboratories Licensing Corporation Reconstructing audio signals with multiple decorrelation techniques and differentially coded parameters
MXPA06011361A (es) * 2004-04-05 2007-01-16 Koninkl Philips Electronics Nv Codificador de canales multiples.
JP4594681B2 (ja) * 2004-09-08 2010-12-08 ソニー株式会社 音声信号処理装置および音声信号処理方法
JP4580210B2 (ja) * 2004-10-19 2010-11-10 ソニー株式会社 音声信号処理装置および音声信号処理方法
US8111830B2 (en) * 2005-12-19 2012-02-07 Samsung Electronics Co., Ltd. Method and apparatus to provide active audio matrix decoding based on the positions of speakers and a listener
FR2916078A1 (fr) * 2007-05-10 2008-11-14 France Telecom Procede de codage et decodage audio, codeur audio, decodeur audio et programmes d'ordinateur associes
US8315398B2 (en) 2007-12-21 2012-11-20 Dts Llc System for adjusting perceived loudness of audio signals
TWI424755B (zh) * 2008-01-11 2014-01-21 Dolby Lab Licensing Corp 矩陣解碼器
TWI449442B (zh) 2009-01-14 2014-08-11 Dolby Lab Licensing Corp 用於無回授之頻域主動矩陣解碼的方法與系統
US8538042B2 (en) 2009-08-11 2013-09-17 Dts Llc System for increasing perceived loudness of speakers
WO2013094135A1 (ja) 2011-12-19 2013-06-27 パナソニック株式会社 音分離装置、および音分離方法
US9312829B2 (en) 2012-04-12 2016-04-12 Dts Llc System for adjusting loudness of audio signals in real time

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589129A (en) 1984-02-21 1986-05-13 Kintek, Inc. Signal decoding system
US4799260A (en) 1985-03-07 1989-01-17 Dolby Laboratories Licensing Corporation Variable matrix decoder
US5504819A (en) 1990-06-08 1996-04-02 Harman International Industries, Inc. Surround sound processor with improved control voltage generator
US5172415A (en) 1990-06-08 1992-12-15 Fosgate James W Surround processor
US5428687A (en) 1990-06-08 1995-06-27 James W. Fosgate Control voltage generator multiplier and one-shot for integrated surround sound processor
US5295189A (en) 1990-06-08 1994-03-15 Fosgate James W Control voltage generator for surround sound processor
US5625696A (en) 1990-06-08 1997-04-29 Harman International Industries, Inc. Six-axis surround sound processor with improved matrix and cancellation control
JP3472046B2 (ja) 1996-08-23 2003-12-02 株式会社国際電気通信基礎技術研究所 信号分離装置
US5862228A (en) 1997-02-21 1999-01-19 Dolby Laboratories Licensing Corporation Audio matrix encoding
US6198826B1 (en) 1997-05-19 2001-03-06 Qsound Labs, Inc. Qsound surround synthesis from stereo

Also Published As

Publication number Publication date
EP1234485A1 (en) 2002-08-28
CN1250046C (zh) 2006-04-05
DE60021756D1 (de) 2005-09-08
ATE301384T1 (de) 2005-08-15
WO2001041505A1 (en) 2001-06-07
EP1234485B1 (en) 2005-08-03
AU784083B2 (en) 2006-02-02
CN1402957A (zh) 2003-03-12
CA2392602A1 (en) 2001-06-07
BR0016741A (pt) 2002-09-03
TW506227B (en) 2002-10-11
MXPA02005520A (es) 2002-10-23
HK1054838B (zh) 2006-09-08
US6970567B1 (en) 2005-11-29
JP2003515771A (ja) 2003-05-07
AU2051801A (en) 2001-06-12
HK1054838A1 (en) 2003-12-12

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee