CN100349497C - 用于处理多通道音频信号的方法和设备 - Google Patents

用于处理多通道音频信号的方法和设备 Download PDF

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Publication number
CN100349497C
CN100349497C CNB00108691XA CN00108691A CN100349497C CN 100349497 C CN100349497 C CN 100349497C CN B00108691X A CNB00108691X A CN B00108691XA CN 00108691 A CN00108691 A CN 00108691A CN 100349497 C CN100349497 C CN 100349497C
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China
Prior art keywords
signal
channel
passage
normalization
response
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Expired - Fee Related
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CNB00108691XA
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English (en)
Chinese (zh)
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CN1281329A (zh
Inventor
J·R·艾尔沃德
H·莱纳特
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Bose Corp
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Bose Corp
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Priority claimed from US09/313,058 external-priority patent/US7016501B1/en
Application filed by Bose Corp filed Critical Bose Corp
Publication of CN1281329A publication Critical patent/CN1281329A/zh
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Publication of CN100349497C publication Critical patent/CN100349497C/zh
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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/05—Generation or adaptation of centre channel in multi-channel audio systems

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CNB00108691XA 1999-05-17 2000-05-17 用于处理多通道音频信号的方法和设备 Expired - Fee Related CN100349497C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/313,058 US7016501B1 (en) 1997-02-07 1999-05-17 Directional decoding
US09/313,058 1999-05-17

Publications (2)

Publication Number Publication Date
CN1281329A CN1281329A (zh) 2001-01-24
CN100349497C true CN100349497C (zh) 2007-11-14

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CNB00108691XA Expired - Fee Related CN100349497C (zh) 1999-05-17 2000-05-17 用于处理多通道音频信号的方法和设备

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EP (1) EP1054575A3 (https=)
JP (1) JP2000350300A (https=)
CN (1) CN100349497C (https=)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002063925A2 (en) * 2001-02-07 2002-08-15 Dolby Laboratories Licensing Corporation Audio channel translation
WO2004019656A2 (en) * 2001-02-07 2004-03-04 Dolby Laboratories Licensing Corporation Audio channel spatial translation
US7660424B2 (en) 2001-02-07 2010-02-09 Dolby Laboratories Licensing Corporation Audio channel spatial translation
CA2992051C (en) * 2004-03-01 2019-01-22 Dolby Laboratories Licensing Corporation Reconstructing audio signals with multiple decorrelation techniques and differentially coded parameters
BRPI0305746B1 (pt) * 2002-08-07 2018-03-20 Dolby Laboratories Licensing Corporation Tradução espacial de canal de áudio
US8793125B2 (en) 2004-07-14 2014-07-29 Koninklijke Philips Electronics N.V. Method and device for decorrelation and upmixing of audio channels
US7283634B2 (en) * 2004-08-31 2007-10-16 Dts, Inc. Method of mixing audio channels using correlated outputs
US7787631B2 (en) * 2004-11-30 2010-08-31 Agere Systems Inc. Parametric coding of spatial audio with cues based on transmitted channels
US8032240B2 (en) 2005-07-11 2011-10-04 Lg Electronics Inc. Apparatus and method of processing an audio signal
EP1946296A4 (en) 2005-09-14 2010-01-20 Lg Electronics Inc METHOD AND DEVICE FOR DECODING AN AUDIO SIGNAL
CN101356572B (zh) * 2005-09-14 2013-02-13 Lg电子株式会社 解码音频信号的方法和装置
WO2007111568A2 (en) * 2006-03-28 2007-10-04 Telefonaktiebolaget L M Ericsson (Publ) Method and arrangement for a decoder for multi-channel surround sound
US12125492B2 (en) 2015-09-25 2024-10-22 Voiceage Coproration Method and system for decoding left and right channels of a stereo sound signal
ES2949991T3 (es) 2015-09-25 2023-10-04 Voiceage Corp Método y sistema para la mezcla en el dominio del tiempo de una señal de sonido estéreo en canales primario y secundario mediante el uso de la detección de un estado de desfase de los canales izquierdo y derecho

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5046098A (en) * 1985-03-07 1991-09-03 Dolby Laboratories Licensing Corporation Variable matrix decoder with three output channels
JPH05236599A (ja) * 1992-02-21 1993-09-10 Clarion Co Ltd ３スピーカの音響再生装置
EP0593128A1 (en) * 1992-10-15 1994-04-20 Koninklijke Philips Electronics N.V. Deriving system for deriving a centre channel signal from a stereophonic audio signal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2512038B2 (ja) * 1987-12-01 1996-07-03 松下電器産業株式会社 音場再生装置
JPH03110999A (ja) * 1989-09-25 1991-05-10 Sharp Corp ４チャンネル・ステレオ強調回路
US5572591A (en) 1993-03-09 1996-11-05 Matsushita Electric Industrial Co., Ltd. Sound field controller
US5727068A (en) 1996-03-01 1998-03-10 Cinema Group, Ltd. Matrix decoding method and apparatus
US6711266B1 (en) * 1997-02-07 2004-03-23 Bose Corporation Surround sound channel encoding and decoding

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5046098A (en) * 1985-03-07 1991-09-03 Dolby Laboratories Licensing Corporation Variable matrix decoder with three output channels
JPH05236599A (ja) * 1992-02-21 1993-09-10 Clarion Co Ltd ３スピーカの音響再生装置
EP0593128A1 (en) * 1992-10-15 1994-04-20 Koninklijke Philips Electronics N.V. Deriving system for deriving a centre channel signal from a stereophonic audio signal

Also Published As

Publication number Publication date
JP2000350300A (ja) 2000-12-15
EP1054575A3 (en) 2002-09-18
CN1281329A (zh) 2001-01-24
EP1054575A2 (en) 2000-11-22
HK1032705A1 (en) 2001-07-27

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