CA2499658C - Procede et systeme de traitement d'une representation d'un champ acoustique - Google Patents

Procede et systeme de traitement d'une representation d'un champ acoustique Download PDF

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Publication number
CA2499658C
CA2499658C CA2499658A CA2499658A CA2499658C CA 2499658 C CA2499658 C CA 2499658C CA 2499658 A CA2499658 A CA 2499658A CA 2499658 A CA2499658 A CA 2499658A CA 2499658 C CA2499658 C CA 2499658C
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CA
Canada
Prior art keywords
coefficients
combinations
representative
initial
directivity
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.)
Expired - Lifetime
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CA2499658A
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English (en)
French (fr)
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CA2499658A1 (fr
Inventor
Remy Bruno
Arnaud Laborie
Sebastien Montoya
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Trinnov Audio
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Trinnov Audio
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Publication of CA2499658A1 publication Critical patent/CA2499658A1/fr
Application granted granted Critical
Publication of CA2499658C publication Critical patent/CA2499658C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Theoretical Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Stereophonic System (AREA)
  • Electrophonic Musical Instruments (AREA)
CA2499658A 2002-09-23 2003-09-22 Procede et systeme de traitement d'une representation d'un champ acoustique Expired - Lifetime CA2499658C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR02/11739 2002-09-23
FR0211739A FR2844894B1 (fr) 2002-09-23 2002-09-23 Procede et systeme de traitement d'une representation d'un champ acoustique
PCT/FR2003/002784 WO2004027642A2 (fr) 2002-09-23 2003-09-22 Procede et systeme de traitement d'une representation d'un champ acoustique

Publications (2)

Publication Number Publication Date
CA2499658A1 CA2499658A1 (fr) 2004-04-01
CA2499658C true CA2499658C (fr) 2012-04-17

Family

ID=31970901

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2499658A Expired - Lifetime CA2499658C (fr) 2002-09-23 2003-09-22 Procede et systeme de traitement d'une representation d'un champ acoustique

Country Status (9)

Country Link
US (1) US8014532B2 (enExample)
EP (1) EP1546916B1 (enExample)
JP (1) JP4624790B2 (enExample)
KR (1) KR101021895B1 (enExample)
CN (1) CN100557600C (enExample)
AU (1) AU2003276362B2 (enExample)
CA (1) CA2499658C (enExample)
FR (1) FR2844894B1 (enExample)
WO (1) WO2004027642A2 (enExample)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2866974A1 (fr) * 2004-03-01 2005-09-02 France Telecom Procede de traitement sonores, en particulier en contexte ambiophonique
US8638946B1 (en) * 2004-03-16 2014-01-28 Genaudio, Inc. Method and apparatus for creating spatialized sound
GB0523946D0 (en) * 2005-11-24 2006-01-04 King S College London Audio signal processing method and system
US20080229200A1 (en) * 2007-03-16 2008-09-18 Fein Gene S Graphical Digital Audio Data Processing System
FR2947334B1 (fr) * 2009-06-26 2011-08-26 Commissariat Energie Atomique Procede et appareil de conversion d'un deplacement d'un objet magnetique en un signal directement perceptible, instrument incorporant cet appareil
KR101282673B1 (ko) 2011-12-09 2013-07-05 현대자동차주식회사 음원 위치 추정 방법
US9190065B2 (en) * 2012-07-15 2015-11-17 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for three-dimensional audio coding using basis function coefficients
KR102201713B1 (ko) 2012-07-19 2021-01-12 돌비 인터네셔널 에이비 다채널 오디오 신호들의 렌더링을 향상시키기 위한 방법 및 디바이스
KR20140036731A (ko) * 2012-09-18 2014-03-26 한국전자통신연구원 응용 프로그램 개발 방법 및 시스템
EP2782094A1 (en) 2013-03-22 2014-09-24 Thomson Licensing Method and apparatus for enhancing directivity of a 1st order Ambisonics signal
US9723305B2 (en) 2013-03-29 2017-08-01 Qualcomm Incorporated RTP payload format designs
US9466305B2 (en) * 2013-05-29 2016-10-11 Qualcomm Incorporated Performing positional analysis to code spherical harmonic coefficients
US9769586B2 (en) 2013-05-29 2017-09-19 Qualcomm Incorporated Performing order reduction with respect to higher order ambisonic coefficients
US9922656B2 (en) 2014-01-30 2018-03-20 Qualcomm Incorporated Transitioning of ambient higher-order ambisonic coefficients
US9489955B2 (en) 2014-01-30 2016-11-08 Qualcomm Incorporated Indicating frame parameter reusability for coding vectors
US9900722B2 (en) 2014-04-29 2018-02-20 Microsoft Technology Licensing, Llc HRTF personalization based on anthropometric features
US9852737B2 (en) 2014-05-16 2017-12-26 Qualcomm Incorporated Coding vectors decomposed from higher-order ambisonics audio signals
US10770087B2 (en) 2014-05-16 2020-09-08 Qualcomm Incorporated Selecting codebooks for coding vectors decomposed from higher-order ambisonic audio signals
US9620137B2 (en) 2014-05-16 2017-04-11 Qualcomm Incorporated Determining between scalar and vector quantization in higher order ambisonic coefficients
US9747910B2 (en) 2014-09-26 2017-08-29 Qualcomm Incorporated Switching between predictive and non-predictive quantization techniques in a higher order ambisonics (HOA) framework
US10332530B2 (en) 2017-01-27 2019-06-25 Google Llc Coding of a soundfield representation
US10028070B1 (en) 2017-03-06 2018-07-17 Microsoft Technology Licensing, Llc Systems and methods for HRTF personalization
US10278002B2 (en) * 2017-03-20 2019-04-30 Microsoft Technology Licensing, Llc Systems and methods for non-parametric processing of head geometry for HRTF personalization
US11205443B2 (en) 2018-07-27 2021-12-21 Microsoft Technology Licensing, Llc Systems, methods, and computer-readable media for improved audio feature discovery using a neural network
JP7459779B2 (ja) * 2020-12-17 2024-04-02 トヨタ自動車株式会社 音源候補抽出システムおよび音源探査方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9211756D0 (en) * 1992-06-03 1992-07-15 Gerzon Michael A Stereophonic directional dispersion method
JPH1132294A (ja) * 1997-07-09 1999-02-02 Sony Corp 情報検索装置および方法、並びに伝送媒体
US6072878A (en) * 1997-09-24 2000-06-06 Sonic Solutions Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics
JP4200541B2 (ja) 1998-04-03 2008-12-24 ソニー株式会社 データ変換装置及び方法、信号記録再生装置、並びに再生装置及び方法
EP1032127A3 (en) * 1999-02-24 2001-06-27 Thomson Licensing S.A. A digital data sample rate conversion system
US6239348B1 (en) * 1999-09-10 2001-05-29 Randall B. Metcalf Sound system and method for creating a sound event based on a modeled sound field
US7231054B1 (en) * 1999-09-24 2007-06-12 Creative Technology Ltd Method and apparatus for three-dimensional audio display
WO2001082650A2 (en) * 2000-04-21 2001-11-01 Keyhold Engineering, Inc. Self-calibrating surround sound system
JP2001318745A (ja) * 2000-05-11 2001-11-16 Sony Corp データ処理装置およびデータ処理方法、並びに記録媒体
US20030147539A1 (en) * 2002-01-11 2003-08-07 Mh Acoustics, Llc, A Delaware Corporation Audio system based on at least second-order eigenbeams
FR2836571B1 (fr) * 2002-02-28 2004-07-09 Remy Henri Denis Bruno Procede et dispositif de pilotage d'un ensemble de restitution d'un champ acoustique
AU2002953540A0 (en) * 2002-12-24 2003-01-16 The University Of Queensland Correction of non-linear gradients effects on magnetic resonance imaging

Also Published As

Publication number Publication date
CN100557600C (zh) 2009-11-04
FR2844894A1 (fr) 2004-03-26
AU2003276362B2 (en) 2010-04-01
KR20050074451A (ko) 2005-07-18
FR2844894B1 (fr) 2004-12-17
EP1546916A2 (fr) 2005-06-29
AU2003276362A1 (en) 2004-04-08
JP2006500809A (ja) 2006-01-05
US8014532B2 (en) 2011-09-06
EP1546916B1 (fr) 2020-04-15
WO2004027642A3 (fr) 2004-08-05
CN1723453A (zh) 2006-01-18
KR101021895B1 (ko) 2011-03-18
JP4624790B2 (ja) 2011-02-02
CA2499658A1 (fr) 2004-04-01
US20060126852A1 (en) 2006-06-15
WO2004027642A2 (fr) 2004-04-01

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Effective date: 20230922