EP1054575A3 - Décodeur directionnel - Google Patents

Décodeur directionnel Download PDF

Info

Publication number
EP1054575A3
EP1054575A3 EP00304128A EP00304128A EP1054575A3 EP 1054575 A3 EP1054575 A3 EP 1054575A3 EP 00304128 A EP00304128 A EP 00304128A EP 00304128 A EP00304128 A EP 00304128A EP 1054575 A3 EP1054575 A3 EP 1054575A3
Authority
EP
European Patent Office
Prior art keywords
directional decoding
correlation
decoding
directional
uncorrelation
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.)
Withdrawn
Application number
EP00304128A
Other languages
German (de)
English (en)
Other versions
EP1054575A2 (fr
Inventor
Richard J. Aylward
Hilmar Lehnert
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.)
Bose Corp
Original Assignee
Bose 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 US09/313,058 external-priority patent/US7016501B1/en
Application filed by Bose Corp filed Critical Bose Corp
Publication of EP1054575A2 publication Critical patent/EP1054575A2/fr
Publication of EP1054575A3 publication Critical patent/EP1054575A3/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
EP00304128A 1999-05-17 2000-05-16 Décodeur directionnel Withdrawn EP1054575A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/313,058 US7016501B1 (en) 1997-02-07 1999-05-17 Directional decoding
US313058 1999-05-17

Publications (2)

Publication Number Publication Date
EP1054575A2 EP1054575A2 (fr) 2000-11-22
EP1054575A3 true EP1054575A3 (fr) 2002-09-18

Family

ID=23214203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00304128A Withdrawn EP1054575A3 (fr) 1999-05-17 2000-05-16 Décodeur directionnel

Country Status (3)

Country Link
EP (1) EP1054575A3 (fr)
JP (1) JP2000350300A (fr)
CN (1) CN100349497C (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7660424B2 (en) 2001-02-07 2010-02-09 Dolby Laboratories Licensing Corporation Audio channel spatial translation
AU2002251896B2 (en) * 2001-02-07 2007-03-22 Dolby Laboratories Licensing Corporation Audio channel translation
WO2004019656A2 (fr) * 2001-02-07 2004-03-04 Dolby Laboratories Licensing Corporation Modulation spatiale de canal audio
CN1672464B (zh) * 2002-08-07 2010-07-28 杜比实验室特许公司 音频声道空间转换
CA2992065C (fr) * 2004-03-01 2018-11-20 Dolby Laboratories Licensing Corporation Reconstruction de signaux audio au moyen de plusieurs techniques de decorrelation
BRPI0513255B1 (pt) * 2004-07-14 2019-06-25 Koninklijke Philips Electronics N.V. Dispositivo e método para converter um primeiro número de canais de áudio de entrada em um segundo número de canais de áudio de saída, sistema de áudio, e, meio de armazenamento legível por computador
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
US8180631B2 (en) 2005-07-11 2012-05-15 Lg Electronics Inc. Apparatus and method of processing an audio signal, utilizing a unique offset associated with each coded-coefficient
KR100857105B1 (ko) 2005-09-14 2008-09-05 엘지전자 주식회사 오디오 신호의 디코딩 방법 및 장치
CN101454828B (zh) * 2005-09-14 2011-12-28 Lg电子株式会社 解码音频信号的方法和装置
CN101411214B (zh) * 2006-03-28 2011-08-10 艾利森电话股份有限公司 用于多信道环绕声音的解码器的方法和装置
EP3353784B1 (fr) * 2015-09-25 2025-03-05 VoiceAge Corporation Procédé et système de codage de canaux gauche et droit d'un signal sonore stéréo sélectionnant entre des modèles à deux et quatre sous-trames en fonction du budget de bits
US12125492B2 (en) 2015-09-25 2024-10-22 Voiceage Coproration Method and system for decoding left and right channels of a stereo sound signal

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01144900A (ja) * 1987-12-01 1989-06-07 Matsushita Electric Ind Co Ltd 音場再生装置
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 (fr) * 1992-10-15 1994-04-20 Koninklijke Philips Electronics N.V. Système de dérivation pour obtenir un signal de canal central à partir d'un signal audio stéréophonique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (4)

* 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
JPH01144900A (ja) * 1987-12-01 1989-06-07 Matsushita Electric Ind Co Ltd 音場再生装置
JPH05236599A (ja) * 1992-02-21 1993-09-10 Clarion Co Ltd ３スピーカの音響再生装置
EP0593128A1 (fr) * 1992-10-15 1994-04-20 Koninklijke Philips Electronics N.V. Système de dérivation pour obtenir un signal de canal central à partir d'un signal audio stéréophonique

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 404 (E - 817) 7 September 1989 (1989-09-07) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 698 (E - 1481) 20 December 1993 (1993-12-20) *

Also Published As

Publication number Publication date
CN100349497C (zh) 2007-11-14
HK1032705A1 (en) 2001-07-27
CN1281329A (zh) 2001-01-24
EP1054575A2 (fr) 2000-11-22
JP2000350300A (ja) 2000-12-15

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