WO2004019656A3 - Modulation spatiale de canal audio - Google Patents

Modulation spatiale de canal audio Download PDF

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Publication number
WO2004019656A3
WO2004019656A3 PCT/US2003/024570 US0324570W WO2004019656A3 WO 2004019656 A3 WO2004019656 A3 WO 2004019656A3 US 0324570 W US0324570 W US 0324570W WO 2004019656 A3 WO2004019656 A3 WO 2004019656A3
Authority
WO
WIPO (PCT)
Prior art keywords
input signals
correlation
signals
compact
audio channel
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.)
Ceased
Application number
PCT/US2003/024570
Other languages
English (en)
Other versions
WO2004019656A2 (fr
Inventor
Mark Franklin Davis
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 to JP2004530877A priority Critical patent/JP4434951B2/ja
Priority to DK03770229T priority patent/DK1527655T3/da
Priority to DE60308876T priority patent/DE60308876T2/de
Priority to US10/522,515 priority patent/US7660424B2/en
Priority to BR0305746-1A priority patent/BR0305746A/pt
Priority to CN03817877XA priority patent/CN1672464B/zh
Priority to AU2003278704A priority patent/AU2003278704B2/en
Priority to EP03770229A priority patent/EP1527655B1/fr
Priority to CA2494454A priority patent/CA2494454C/fr
Application filed by Dolby Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Priority to BRPI0305746-1A priority patent/BRPI0305746B1/pt
Priority to MXPA05001413A priority patent/MXPA05001413A/es
Priority to HK05106538.1A priority patent/HK1073963B/en
Publication of WO2004019656A2 publication Critical patent/WO2004019656A2/fr
Publication of WO2004019656A3 publication Critical patent/WO2004019656A3/fr
Priority to IL165941A priority patent/IL165941A/en
Anticipated expiration legal-status Critical
Ceased 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 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • 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)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (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.
PCT/US2003/024570 2001-02-07 2003-08-06 Modulation spatiale de canal audio Ceased WO2004019656A2 (fr)

Priority Applications (13)

Application Number Priority Date Filing Date Title
CA2494454A CA2494454C (fr) 2002-08-07 2003-08-06 Modulation spatiale de canal audio
DE60308876T DE60308876T2 (de) 2002-08-07 2003-08-06 Audiokanalumsetzung
US10/522,515 US7660424B2 (en) 2001-02-07 2003-08-06 Audio channel spatial translation
BR0305746-1A BR0305746A (pt) 2002-08-07 2003-08-06 Tradução espacial de canal de áudio
CN03817877XA CN1672464B (zh) 2002-08-07 2003-08-06 音频声道空间转换
AU2003278704A AU2003278704B2 (en) 2002-08-07 2003-08-06 Audio channel spatial translation
EP03770229A EP1527655B1 (fr) 2002-08-07 2003-08-06 Modulation spatiale de canal audio
JP2004530877A JP4434951B2 (ja) 2002-08-07 2003-08-06 オーディオチャンネルの空間的変換
BRPI0305746-1A BRPI0305746B1 (pt) 2002-08-07 2003-08-06 Tradução espacial de canal de áudio
DK03770229T DK1527655T3 (da) 2002-08-07 2003-08-06 Rumlig translation af audiokanal
MXPA05001413A MXPA05001413A (es) 2002-08-07 2003-08-06 Conversion espacial de canales de audio.
HK05106538.1A HK1073963B (en) 2002-08-07 2003-08-06 Audio channel spatial translation
IL165941A IL165941A (en) 2002-08-07 2004-12-22 Audio channel spatial translation

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US26728401P 2001-02-07 2001-02-07
US40198302P 2002-08-07 2002-08-07
US60/401,983 2002-08-07

Publications (2)

Publication Number Publication Date
WO2004019656A2 WO2004019656A2 (fr) 2004-03-04
WO2004019656A3 true WO2004019656A3 (fr) 2004-10-14

Family

ID=31949809

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/024570 Ceased WO2004019656A2 (fr) 2001-02-07 2003-08-06 Modulation spatiale de canal audio

Country Status (1)

Country Link
WO (1) WO2004019656A2 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
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US8160258B2 (en) 2006-02-07 2012-04-17 Lg Electronics Inc. Apparatus and method for encoding/decoding signal
US8208641B2 (en) 2006-01-19 2012-06-26 Lg Electronics Inc. Method and apparatus for processing a media signal
US8396574B2 (en) 2007-07-13 2013-03-12 Dolby Laboratories Licensing Corporation Audio processing using auditory scene analysis and spectral skewness
US8600074B2 (en) 2006-04-04 2013-12-03 Dolby Laboratories Licensing Corporation Loudness modification of multichannel audio signals
US8849433B2 (en) 2006-10-20 2014-09-30 Dolby Laboratories Licensing Corporation Audio dynamics processing using a reset
US8917874B2 (en) 2005-05-26 2014-12-23 Lg Electronics Inc. Method and apparatus for decoding an audio signal
US9136810B2 (en) 2006-04-27 2015-09-15 Dolby Laboratories Licensing Corporation Audio gain control using specific-loudness-based auditory event detection
US9311922B2 (en) 2004-03-01 2016-04-12 Dolby Laboratories Licensing Corporation Method, apparatus, and storage medium for decoding encoded audio channels
US9350311B2 (en) 2004-10-26 2016-05-24 Dolby Laboratories Licensing Corporation Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
US9595267B2 (en) 2005-05-26 2017-03-14 Lg Electronics Inc. Method and apparatus for decoding an audio signal

Families Citing this family (25)

* 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
US7610205B2 (en) 2002-02-12 2009-10-27 Dolby Laboratories Licensing Corporation High quality time-scaling and pitch-scaling of audio signals
US7711123B2 (en) 2001-04-13 2010-05-04 Dolby Laboratories Licensing Corporation Segmenting audio signals into auditory events
US7508947B2 (en) * 2004-08-03 2009-03-24 Dolby Laboratories Licensing Corporation Method for combining audio signals using auditory scene analysis
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
DE602006015294D1 (de) * 2005-03-30 2010-08-19 Dolby Int Ab Mehrkanal-audiocodierung
WO2006132857A2 (fr) 2005-06-03 2006-12-14 Dolby Laboratories Licensing Corporation Appareil et procede permettant de coder des signaux audio a l'aide d'instructions de decodage
EP2088580B1 (fr) 2005-07-14 2011-09-07 Koninklijke Philips Electronics N.V. Décodage audio
EP1761110A1 (fr) * 2005-09-02 2007-03-07 Ecole Polytechnique Fédérale de Lausanne Méthode pour générer de l'audio multi-canaux à partir de signaux stéréo
EP1938312A4 (fr) 2005-09-14 2010-01-20 Lg Electronics Inc Procede et appareil de decodage d'un signal audio
KR100803212B1 (ko) * 2006-01-11 2008-02-14 삼성전자주식회사 스케일러블 채널 복호화 방법 및 장치
EP1974344A4 (fr) 2006-01-19 2011-06-08 Lg Electronics Inc Procede et appareil pour decoder un signal
TWI333644B (en) 2006-02-23 2010-11-21 Lg Electronics Inc Method and apparatus for processing a audio signal
KR100773560B1 (ko) 2006-03-06 2007-11-05 삼성전자주식회사 스테레오 신호 생성 방법 및 장치
JP4875142B2 (ja) * 2006-03-28 2012-02-15 テレフオンアクチーボラゲット エル エム エリクソン（パブル） マルチチャネル・サラウンドサウンドのためのデコーダのための方法及び装置
US7965848B2 (en) 2006-03-29 2011-06-21 Dolby International Ab Reduced number of channels decoding
TWI483619B (zh) 2006-03-30 2015-05-01 Lg Electronics Inc 一種媒體訊號的編碼/解碼方法及其裝置
KR100763920B1 (ko) 2006-08-09 2007-10-05 삼성전자주식회사 멀티채널 신호를 모노 또는 스테레오 신호로 압축한 입력신호를 2채널의 바이노럴 신호로 복호화하는 방법 및 장치
US20080235006A1 (en) 2006-08-18 2008-09-25 Lg Electronics, Inc. Method and Apparatus for Decoding an Audio Signal
EP2232700B1 (fr) 2007-12-21 2014-08-13 Dts Llc Système pour ajuster la sonie perçue de signaux 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
US8538042B2 (en) 2009-08-11 2013-09-17 Dts Llc System for increasing perceived loudness of speakers
WO2012042905A1 (fr) * 2010-09-30 2012-04-05 パナソニック株式会社 Dispositif et procédé de restitution sonore
US9312829B2 (en) 2012-04-12 2016-04-12 Dts Llc System for adjusting loudness of audio signals in real time
BR112016006832B1 (pt) 2013-10-03 2022-05-10 Dolby Laboratories Licensing Corporation Método para derivar m sinais de áudio difusos a partir de n sinais de áudio para a apresentação de um campo sonoro difuso, aparelho e meio não transitório

Citations (3)

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WO1999051063A1 (fr) * 1998-03-31 1999-10-07 Lake Technology Limited Traitement avec fonction de determination de la position de la tete pour la reproduction de signaux audio selon la position de la tete
US6009179A (en) * 1997-01-24 1999-12-28 Sony Corporation Method and apparatus for electronically embedding directional cues in two channels of sound
EP1054575A2 (fr) * 1999-05-17 2000-11-22 Bose Corporation Décodeur directionnel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6009179A (en) * 1997-01-24 1999-12-28 Sony Corporation Method and apparatus for electronically embedding directional cues in two channels of sound
WO1999051063A1 (fr) * 1998-03-31 1999-10-07 Lake Technology Limited Traitement avec fonction de determination de la position de la tete pour la reproduction de signaux audio selon la position de la tete
EP1054575A2 (fr) * 1999-05-17 2000-11-22 Bose Corporation Décodeur directionnel

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9520135B2 (en) 2004-03-01 2016-12-13 Dolby Laboratories Licensing Corporation Reconstructing audio signals with multiple decorrelation techniques
US9454969B2 (en) 2004-03-01 2016-09-27 Dolby Laboratories Licensing Corporation Multichannel audio coding
US9311922B2 (en) 2004-03-01 2016-04-12 Dolby Laboratories Licensing Corporation Method, apparatus, and storage medium for decoding encoded audio channels
US9350311B2 (en) 2004-10-26 2016-05-24 Dolby Laboratories Licensing Corporation Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
US8917874B2 (en) 2005-05-26 2014-12-23 Lg Electronics Inc. Method and apparatus for decoding an audio signal
US9595267B2 (en) 2005-05-26 2017-03-14 Lg Electronics Inc. Method and apparatus for decoding an audio signal
US8411869B2 (en) 2006-01-19 2013-04-02 Lg Electronics Inc. Method and apparatus for processing a media signal
US8488819B2 (en) 2006-01-19 2013-07-16 Lg Electronics Inc. Method and apparatus for processing a media signal
US8521313B2 (en) 2006-01-19 2013-08-27 Lg Electronics Inc. Method and apparatus for processing a media signal
US8208641B2 (en) 2006-01-19 2012-06-26 Lg Electronics Inc. Method and apparatus for processing a media signal
US8351611B2 (en) 2006-01-19 2013-01-08 Lg Electronics Inc. Method and apparatus for processing a media signal
US8160258B2 (en) 2006-02-07 2012-04-17 Lg Electronics Inc. Apparatus and method for encoding/decoding signal
US8638945B2 (en) 2006-02-07 2014-01-28 Lg Electronics, Inc. Apparatus and method for encoding/decoding signal
US8712058B2 (en) 2006-02-07 2014-04-29 Lg Electronics, Inc. Apparatus and method for encoding/decoding signal
US8625810B2 (en) 2006-02-07 2014-01-07 Lg Electronics, Inc. Apparatus and method for encoding/decoding signal
US8612238B2 (en) 2006-02-07 2013-12-17 Lg Electronics, Inc. Apparatus and method for encoding/decoding signal
US8296156B2 (en) 2006-02-07 2012-10-23 Lg Electronics, Inc. Apparatus and method for encoding/decoding signal
US8285556B2 (en) 2006-02-07 2012-10-09 Lg Electronics Inc. Apparatus and method for encoding/decoding signal
US9584083B2 (en) 2006-04-04 2017-02-28 Dolby Laboratories Licensing Corporation Loudness modification of multichannel audio signals
US8600074B2 (en) 2006-04-04 2013-12-03 Dolby Laboratories Licensing Corporation Loudness modification of multichannel audio signals
US9136810B2 (en) 2006-04-27 2015-09-15 Dolby Laboratories Licensing Corporation Audio gain control using specific-loudness-based auditory event detection
US9450551B2 (en) 2006-04-27 2016-09-20 Dolby Laboratories Licensing Corporation Audio control using auditory event detection
US8849433B2 (en) 2006-10-20 2014-09-30 Dolby Laboratories Licensing Corporation Audio dynamics processing using a reset
US8396574B2 (en) 2007-07-13 2013-03-12 Dolby Laboratories Licensing Corporation Audio processing using auditory scene analysis and spectral skewness

Also Published As

Publication number Publication date
WO2004019656A2 (fr) 2004-03-04

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