CA2494454C - Modulation spatiale de canal audio - Google Patents

Modulation spatiale de canal audio Download PDF

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Publication number
CA2494454C
CA2494454C CA2494454A CA2494454A CA2494454C CA 2494454 C CA2494454 C CA 2494454C CA 2494454 A CA2494454 A CA 2494454A CA 2494454 A CA2494454 A CA 2494454A CA 2494454 C CA2494454 C CA 2494454C
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Canada
Prior art keywords
correlation
input
variable
input signals
cross
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Expired - Lifetime
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CA2494454A
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CA2494454A1 (fr
Inventor
Mark Franklin Davis
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Dolby Laboratories Licensing Corp
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Dolby Laboratories Licensing Corp
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Priority claimed from PCT/US2003/024570 external-priority patent/WO2004019656A2/fr
Publication of CA2494454A1 publication Critical patent/CA2494454A1/fr
Application granted granted Critical
Publication of CA2494454C publication Critical patent/CA2494454C/fr
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Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • 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 
    • H04S5/02—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 four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • Algebra (AREA)
  • Stereophonic System (AREA)
  • Machine Translation (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

Une matrice variable M:N permet de moduler des signaux d'entrée audio M, chaque signal étant associé à une direction, pour les convertir en signaux de sortie audio N, chaque signal étant associé à une direction, N étant supérieur à M, M étant supérieur ou égal à 2, et N étant un nombre entier positif supérieur ou égal à 3. La matrice variable est commandée en réaction à des mesures : (1) des niveaux relatifs des signaux d'entrée, et (2) de la corrélation croisée des signaux d'entrée, de sorte qu'un champ acoustique généré par les signaux de sortie présente une image sonore compacte dans la direction primaire continue nominale des signaux d'entrée, lorsque les signaux d'entrée sont hautement corrélés, l'image s'étale du compact au large, lorsque la corrélation diminue et se divise progressivement en plusieurs images sonores compactes, chacune dans une direction associée à un signal d'entrée, lorsque la corrélation continue à diminuer pour devenir hautement non corrélée.
CA2494454A 2002-08-07 2003-08-06 Modulation spatiale de canal audio Expired - Lifetime CA2494454C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US40198302P 2002-08-07 2002-08-07
US60/401,983 2002-08-07
PCT/US2003/024570 WO2004019656A2 (fr) 2001-02-07 2003-08-06 Modulation spatiale de canal audio

Publications (2)

Publication Number Publication Date
CA2494454A1 CA2494454A1 (fr) 2004-03-04
CA2494454C true CA2494454C (fr) 2013-10-01

Family

ID=33489220

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2494454A Expired - Lifetime CA2494454C (fr) 2002-08-07 2003-08-06 Modulation spatiale de canal audio

Country Status (16)

Country Link
EP (1) EP1527655B1 (fr)
JP (1) JP4434951B2 (fr)
KR (1) KR100988293B1 (fr)
CN (1) CN1672464B (fr)
AT (1) ATE341923T1 (fr)
AU (1) AU2003278704B2 (fr)
BR (2) BRPI0305746B1 (fr)
CA (1) CA2494454C (fr)
DE (1) DE60308876T2 (fr)
DK (1) DK1527655T3 (fr)
ES (1) ES2271654T3 (fr)
IL (1) IL165941A (fr)
MX (1) MXPA05001413A (fr)
MY (1) MY139849A (fr)
PL (1) PL373120A1 (fr)
TW (1) TWI315828B (fr)

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US7895138B2 (en) * 2004-11-23 2011-02-22 Koninklijke Philips Electronics N.V. Device and a method to process audio data, a computer program element and computer-readable medium
TWI397901B (zh) * 2004-12-21 2013-06-01 杜比實驗室特許公司 控制音訊信號比響度特性之方法及其相關裝置與電腦程式
US8090586B2 (en) 2005-05-26 2012-01-03 Lg Electronics Inc. Method and apparatus for embedding spatial information and reproducing embedded signal for an audio signal
EP1946294A2 (fr) 2005-06-30 2008-07-23 LG Electronics Inc. Appareil et procede de codage et decodage de signal audio
CA2613885C (fr) 2005-06-30 2014-05-06 Lg Electronics Inc. Procede et appareil permettant de coder et de decoder un signal audio
JP5227794B2 (ja) 2005-06-30 2013-07-03 エルジー エレクトロニクス インコーポレイティド オーディオ信号をエンコーディング及びデコーディングするための装置とその方法
JP4859925B2 (ja) 2005-08-30 2012-01-25 エルジー エレクトロニクス インコーポレイティド オーディオ信号デコーディング方法及びその装置
US7761303B2 (en) 2005-08-30 2010-07-20 Lg Electronics Inc. Slot position coding of TTT syntax of spatial audio coding application
KR20080049735A (ko) 2005-08-30 2008-06-04 엘지전자 주식회사 오디오 신호의 디코딩 방법 및 장치
US7788107B2 (en) 2005-08-30 2010-08-31 Lg Electronics Inc. Method for decoding an audio signal
KR100857111B1 (ko) 2005-10-05 2008-09-08 엘지전자 주식회사 신호 처리 방법 및 이의 장치, 그리고 인코딩 및 디코딩방법 및 이의 장치
EP1949368A4 (fr) 2005-10-05 2009-05-27 Lg Electronics Inc Procede et appareil destines au traitement de signaux et un procede de codage et de decodage et appareil correspondant
US7751485B2 (en) 2005-10-05 2010-07-06 Lg Electronics Inc. Signal processing using pilot based coding
US7696907B2 (en) 2005-10-05 2010-04-13 Lg Electronics Inc. Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor
US7646319B2 (en) 2005-10-05 2010-01-12 Lg Electronics Inc. Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor
US7672379B2 (en) 2005-10-05 2010-03-02 Lg Electronics Inc. Audio signal processing, encoding, and decoding
US7761289B2 (en) 2005-10-24 2010-07-20 Lg Electronics Inc. Removing time delays in signal paths
US7752053B2 (en) 2006-01-13 2010-07-06 Lg Electronics Inc. Audio signal processing using pilot based coding
US7965848B2 (en) 2006-03-29 2011-06-21 Dolby International Ab Reduced number of channels decoding
JP5366104B2 (ja) * 2008-06-26 2013-12-11 オランジュ マルチチャネル・オーディオ信号の空間合成
EP2398257B1 (fr) 2008-12-18 2017-05-10 Dolby Laboratories Licensing Corporation Translation spatiale de canaux audio
JP5314129B2 (ja) * 2009-03-31 2013-10-16 パナソニック株式会社 音響再生装置及び音響再生方法
CN101527874B (zh) * 2009-04-28 2011-03-23 张勤 一种动声声场系统
TWI444989B (zh) 2010-01-22 2014-07-11 Dolby Lab Licensing Corp 針對改良多通道上混使用多通道解相關之技術
WO2012042905A1 (fr) * 2010-09-30 2012-04-05 パナソニック株式会社 Dispositif et procédé de restitution sonore
CN104186001B (zh) * 2012-03-22 2018-03-27 迪拉克研究公司 使用支持扬声器的可变集合的音频预补偿控制器设计
EP2830332A3 (fr) 2013-07-22 2015-03-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Procédé, unité de traitement de signal et programme informatique permettant de mapper une pluralité de canaux d'entrée d'une configuration de canal d'entrée vers des canaux de sortie d'une configuration de canal de sortie
EP2830051A3 (fr) 2013-07-22 2015-03-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encodeur audio, décodeur audio, procédés et programme informatique utilisant des signaux résiduels codés conjointement
CN107710790B (zh) 2015-06-24 2021-06-22 索尼公司 用于处理声音的装置、方法及程序
CN106604199B (zh) * 2016-12-23 2018-09-18 湖南国科微电子股份有限公司 一种数字音频信号的矩阵处理方法及装置
US11019449B2 (en) * 2018-10-06 2021-05-25 Qualcomm Incorporated Six degrees of freedom and three degrees of freedom backward compatibility
KR102692707B1 (ko) 2018-12-07 2024-08-07 프라운호퍼-게젤샤프트 추르 푀르데룽 데어 안제반텐 포르슝 에 파우 낮은 차수, 중간 차수 및 높은 차수 컴포넌트 생성기를 사용하는 DirAC 기반 공간 오디오 코딩과 관련된 인코딩, 디코딩, 장면 처리 및 기타 절차를 위한 장치, 방법 및 컴퓨터 프로그램
TWI740206B (zh) * 2019-09-16 2021-09-21 宏碁股份有限公司 訊號量測的校正系統及其校正方法
CN114327040A (zh) * 2021-11-25 2022-04-12 歌尔股份有限公司 振动信号生成方法、装置、电子设备及存储介质
CN117319638B (zh) * 2023-09-26 2025-02-25 广东启扬科技有限公司 Af模组运动的起始位置测试方法及装置

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US6009179A (en) * 1997-01-24 1999-12-28 Sony Corporation Method and apparatus for electronically embedding directional cues in two channels of sound
US6072878A (en) * 1997-09-24 2000-06-06 Sonic Solutions Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics
AUPP271598A0 (en) * 1998-03-31 1998-04-23 Lake Dsp Pty Limited Headtracked processing for headtracked playback of audio signals
EP1054575A3 (fr) * 1999-05-17 2002-09-18 Bose Corporation Décodeur directionnel

Also Published As

Publication number Publication date
EP1527655A2 (fr) 2005-05-04
IL165941A (en) 2010-06-30
CA2494454A1 (fr) 2004-03-04
JP4434951B2 (ja) 2010-03-17
IL165941A0 (en) 2006-01-15
ATE341923T1 (de) 2006-10-15
AU2003278704B2 (en) 2009-04-23
DK1527655T3 (da) 2007-01-29
BR0305746A (pt) 2004-12-07
BRPI0305746B1 (pt) 2018-03-20
EP1527655B1 (fr) 2006-10-04
KR20050035878A (ko) 2005-04-19
HK1073963A1 (en) 2005-10-21
DE60308876D1 (de) 2006-11-16
AU2003278704A1 (en) 2004-03-11
TW200404222A (en) 2004-03-16
ES2271654T3 (es) 2007-04-16
PL373120A1 (en) 2005-08-08
KR100988293B1 (ko) 2010-10-18
JP2005535266A (ja) 2005-11-17
DE60308876T2 (de) 2007-03-01
TWI315828B (en) 2009-10-11
MY139849A (en) 2009-11-30
CN1672464A (zh) 2005-09-21
MXPA05001413A (es) 2005-06-06
CN1672464B (zh) 2010-07-28

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