AU784855B2 - Method for deriving at least three audio signals from two input audio signals - Google Patents

Method for deriving at least three audio signals from two input audio signals Download PDF

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Publication number
AU784855B2
AU784855B2 AU18043/01A AU1804301A AU784855B2 AU 784855 B2 AU784855 B2 AU 784855B2 AU 18043/01 A AU18043/01 A AU 18043/01A AU 1804301 A AU1804301 A AU 1804301A AU 784855 B2 AU784855 B2 AU 784855B2
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AU
Australia
Prior art keywords
signals
output
audio signals
pair
variable gain
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Expired
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AU18043/01A
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English (en)
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AU1804301A (en
Inventor
James W. Fosgate
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Dolby Laboratories Licensing Corp
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Dolby Laboratories Licensing Corp
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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 AU1804301A publication Critical patent/AU1804301A/en
Application granted granted Critical
Publication of AU784855B2 publication Critical patent/AU784855B2/en
Anticipated expiration legal-status Critical
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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/005—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo five- or more-channel type, e.g. virtual surround

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  • 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)
  • Stereophonic System (AREA)
  • Amplifiers (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
AU18043/01A 1999-12-03 2000-11-28 Method for deriving at least three audio signals from two input audio signals Expired AU784855B2 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US45481099A 1999-12-03 1999-12-03
US09/454810 1999-12-03
US09/532711 2000-03-22
US09/532,711 US6920223B1 (en) 1999-12-03 2000-03-22 Method for deriving at least three audio signals from two input audio signals
PCT/US2000/032383 WO2001041504A1 (en) 1999-12-03 2000-11-28 Method for deriving at least three audio signals from two input audio signals

Publications (2)

Publication Number Publication Date
AU1804301A AU1804301A (en) 2001-06-12
AU784855B2 true AU784855B2 (en) 2006-07-06

Family

ID=27037614

Family Applications (1)

Application Number Title Priority Date Filing Date
AU18043/01A Expired AU784855B2 (en) 1999-12-03 2000-11-28 Method for deriving at least three audio signals from two input audio signals

Country Status (15)

Country Link
EP (1) EP1234484B1 (US20070244113A1-20071018-C00138.png)
JP (1) JP4540285B2 (US20070244113A1-20071018-C00138.png)
CN (1) CN1226901C (US20070244113A1-20071018-C00138.png)
AT (1) ATE272303T1 (US20070244113A1-20071018-C00138.png)
AU (1) AU784855B2 (US20070244113A1-20071018-C00138.png)
BR (1) BRPI0015969B1 (US20070244113A1-20071018-C00138.png)
CA (1) CA2392601C (US20070244113A1-20071018-C00138.png)
DE (1) DE60012568T2 (US20070244113A1-20071018-C00138.png)
DK (1) DK1234484T3 (US20070244113A1-20071018-C00138.png)
ES (1) ES2220572T3 (US20070244113A1-20071018-C00138.png)
HK (1) HK1051621A1 (US20070244113A1-20071018-C00138.png)
MX (1) MXPA02005521A (US20070244113A1-20071018-C00138.png)
TR (1) TR200402241T4 (US20070244113A1-20071018-C00138.png)
TW (1) TW510143B (US20070244113A1-20071018-C00138.png)
WO (1) WO2001041504A1 (US20070244113A1-20071018-C00138.png)

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CA2420671C (en) 2000-08-31 2011-12-13 Dolby Laboratories Licensing Corporation Method for apparatus for audio matrix decoding
US7003467B1 (en) 2000-10-06 2006-02-21 Digital Theater Systems, Inc. Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio
ATE527654T1 (de) 2004-03-01 2011-10-15 Dolby Lab Licensing Corp Mehrkanal-audiodecodierung
SE0400997D0 (sv) * 2004-04-16 2004-04-16 Cooding Technologies Sweden Ab Efficient coding of multi-channel audio
KR100725818B1 (ko) 2004-07-14 2007-06-11 삼성전자주식회사 최적 가상음원을 제공하는 음향재생장치 및 음향재생방법
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
CN102117617B (zh) * 2004-10-28 2013-01-30 Dts（英属维尔京群岛）有限公司 音频空间环境引擎
EP1691348A1 (en) * 2005-02-14 2006-08-16 Ecole Polytechnique Federale De Lausanne Parametric joint-coding of audio sources
KR101251426B1 (ko) * 2005-06-03 2013-04-05 돌비 레버러토리즈 라이쎈싱 코오포레이션 디코딩 명령으로 오디오 신호를 인코딩하기 위한 장치 및방법
US20070055510A1 (en) * 2005-07-19 2007-03-08 Johannes Hilpert Concept for bridging the gap between parametric multi-channel audio coding and matrixed-surround multi-channel coding
JP4602204B2 (ja) 2005-08-31 2010-12-22 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
JP4720405B2 (ja) * 2005-09-27 2011-07-13 船井電機株式会社 音声信号処理装置
JP4637725B2 (ja) 2005-11-11 2011-02-23 ソニー株式会社 音声信号処理装置、音声信号処理方法、プログラム
US7760886B2 (en) 2005-12-20 2010-07-20 Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forscheng e.V. Apparatus and method for synthesizing three output channels using two input channels
US8949120B1 (en) 2006-05-25 2015-02-03 Audience, Inc. Adaptive noise cancelation
JP4894386B2 (ja) 2006-07-21 2012-03-14 ソニー株式会社 音声信号処理装置、音声信号処理方法および音声信号処理プログラム
JP4835298B2 (ja) * 2006-07-21 2011-12-14 ソニー株式会社 オーディオ信号処理装置、オーディオ信号処理方法およびプログラム
TWI424755B (zh) * 2008-01-11 2014-01-21 Dolby Lab Licensing Corp 矩陣解碼器
US8315396B2 (en) * 2008-07-17 2012-11-20 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating audio output signals using object based metadata
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
US8718290B2 (en) 2010-01-26 2014-05-06 Audience, Inc. Adaptive noise reduction using level cues
US8473287B2 (en) 2010-04-19 2013-06-25 Audience, Inc. Method for jointly optimizing noise reduction and voice quality in a mono or multi-microphone system
JP5556673B2 (ja) * 2011-01-11 2014-07-23 株式会社Ｊｖｃケンウッド 音声信号補正装置、音声信号補正方法及びプログラム
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
US8737188B1 (en) 2012-01-11 2014-05-27 Audience, Inc. Crosstalk cancellation systems and methods
US9640194B1 (en) 2012-10-04 2017-05-02 Knowles Electronics, Llc Noise suppression for speech processing based on machine-learning mask estimation
US9215545B2 (en) 2013-05-31 2015-12-15 Bose Corporation Sound stage controller for a near-field speaker-based audio system
US9536540B2 (en) 2013-07-19 2017-01-03 Knowles Electronics, Llc Speech signal separation and synthesis based on auditory scene analysis and speech modeling
DE112015003945T5 (de) 2014-08-28 2017-05-11 Knowles Electronics, Llc Mehrquellen-Rauschunterdrückung

Citations (3)

* 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
US5644640A (en) * 1990-06-08 1997-07-01 Harman International Industries, Inc. Surround sound processor with improved control voltage generator
EP0949845A2 (en) * 1998-04-09 1999-10-13 Qsound Labs Incorporated Qsound surround synthesis from stereo

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2121783T3 (es) * 1990-06-08 1998-12-16 Harman Int Ind Procesador acustico de ambiente.

Patent Citations (3)

* 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
US5644640A (en) * 1990-06-08 1997-07-01 Harman International Industries, Inc. Surround sound processor with improved control voltage generator
EP0949845A2 (en) * 1998-04-09 1999-10-13 Qsound Labs Incorporated Qsound surround synthesis from stereo

Also Published As

Publication number Publication date
MXPA02005521A (es) 2002-10-23
ES2220572T3 (es) 2004-12-16
EP1234484B1 (en) 2004-07-28
BR0015969A (pt) 2002-07-16
TW510143B (en) 2002-11-11
DK1234484T3 (da) 2004-11-22
CN1226901C (zh) 2005-11-09
CA2392601C (en) 2012-07-17
BRPI0015969B1 (pt) 2015-06-02
AU1804301A (en) 2001-06-12
WO2001041504A1 (en) 2001-06-07
EP1234484A1 (en) 2002-08-28
TR200402241T4 (tr) 2004-10-21
HK1051621A1 (en) 2003-08-08
ATE272303T1 (de) 2004-08-15
DE60012568T2 (de) 2005-08-04
JP2003516069A (ja) 2003-05-07
CN1391782A (zh) 2003-01-15
JP4540285B2 (ja) 2010-09-08
CA2392601A1 (en) 2001-06-07
DE60012568D1 (de) 2004-09-02

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MK14 Patent ceased section 143(a) (annual fees not paid) or expired