WO2007101958A3 - Optimisation d'une spatialisation sonore binaurale a partir d'un encodage multicanal - Google Patents

Optimisation d'une spatialisation sonore binaurale a partir d'un encodage multicanal Download PDF

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Publication number
WO2007101958A3
WO2007101958A3 PCT/FR2007/050867 FR2007050867W WO2007101958A3 WO 2007101958 A3 WO2007101958 A3 WO 2007101958A3 FR 2007050867 W FR2007050867 W FR 2007050867W WO 2007101958 A3 WO2007101958 A3 WO 2007101958A3
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WO
WIPO (PCT)
Prior art keywords
encoding
filters
functions
hrir
optimization
Prior art date
Application number
PCT/FR2007/050867
Other languages
English (en)
Other versions
WO2007101958A2 (fr
Inventor
Julien Faure
Jerome Daniel
Marc Emerit
Original Assignee
France Telecom
Julien Faure
Jerome Daniel
Marc Emerit
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
Application filed by France Telecom, Julien Faure, Jerome Daniel, Marc Emerit filed Critical France Telecom
Priority to US12/224,840 priority Critical patent/US9215544B2/en
Priority to EP07731684.2A priority patent/EP1992198B1/fr
Publication of WO2007101958A2 publication Critical patent/WO2007101958A2/fr
Publication of WO2007101958A3 publication Critical patent/WO2007101958A3/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • 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
    • 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
    • H04S2420/01—Enhancing the perception of the sound image or of the spatial distribution using head related transfer functions [HRTF's] or equivalents thereof, e.g. interaural time difference [ITD] or interaural level difference [ILD]
    • 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 

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)

Abstract

L'invention concerne une spatialisation sonore avec un encodage multicanal et pour une restitution binaurale sur deux haut-parleurs, avec un encodage spatial défini par des fonctions d'encodage associées à une pluralité de canaux d'encodage et un décodage par application de filtres pour une restitution binaurale. L'invention prévoit une optimisation comme suit : a) obtenir un jeu original de fonctions de transfert acoustique propres à une morphologie d'individu (HRIR;HRTF), b) choisir des fonctions d'encodage spatial ( g(ϑ, ϕ,n) )et/ou des filtres de décodage ( F(t,n) ), et c) par itérations successives, optimiser les filtres associés aux fonctions d'encodage choisies ou les fonctions d'encodage associées aux filtres choisis, ou conjointement les filtres et les fonctions d'encodage choisis, en minimisant une erreur (c(HRIR,HRIR*)) calculée en fonction d'une comparaison entre : - le jeu original de fonctions de transfert (HRIR), et - un jeu de fonctions de transfert reconstruit (HRIR*) à partir des fonctions d'encodage et des filtres de décodage, optimisés et/ou choisis.
PCT/FR2007/050867 2006-03-09 2007-03-01 Optimisation d'une spatialisation sonore binaurale a partir d'un encodage multicanal WO2007101958A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/224,840 US9215544B2 (en) 2006-03-09 2007-03-01 Optimization of binaural sound spatialization based on multichannel encoding
EP07731684.2A EP1992198B1 (fr) 2006-03-09 2007-03-01 Optimisation d'une spatialisation sonore binaurale a partir d'un encodage multicanal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0602098 2006-03-09
FR0602098 2006-03-09

Publications (2)

Publication Number Publication Date
WO2007101958A2 WO2007101958A2 (fr) 2007-09-13
WO2007101958A3 true WO2007101958A3 (fr) 2007-11-01

Family

ID=37452726

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2007/050867 WO2007101958A2 (fr) 2006-03-09 2007-03-01 Optimisation d'une spatialisation sonore binaurale a partir d'un encodage multicanal

Country Status (3)

Country Link
US (1) US9215544B2 (fr)
EP (1) EP1992198B1 (fr)
WO (1) WO2007101958A2 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2343723B2 (es) * 2009-02-05 2011-05-18 Universidad De Vigo Sistema para la exploracion de entornos virtuales y reales mediante espacios acusticos vectoriales.
KR20120004909A (ko) * 2010-07-07 2012-01-13 삼성전자주식회사 입체 음향 재생 방법 및 장치
EP2645748A1 (fr) 2012-03-28 2013-10-02 Thomson Licensing Procédé et appareil de décodage de signaux de haut-parleurs stéréo provenant d'un signal audio ambiophonique d'ordre supérieur
GB201211512D0 (en) * 2012-06-28 2012-08-08 Provost Fellows Foundation Scholars And The Other Members Of Board Of The Method and apparatus for generating an audio output comprising spartial information
US20140081627A1 (en) * 2012-09-14 2014-03-20 Quickfilter Technologies, Llc Method for optimization of multiple psychoacoustic effects
US9736609B2 (en) * 2013-02-07 2017-08-15 Qualcomm Incorporated Determining renderers for spherical harmonic coefficients
CN104982042B (zh) 2013-04-19 2018-06-08 韩国电子通信研究院 多信道音频信号处理装置及方法
CN108806704B (zh) 2013-04-19 2023-06-06 韩国电子通信研究院 多信道音频信号处理装置及方法
US9319819B2 (en) 2013-07-25 2016-04-19 Etri Binaural rendering method and apparatus for decoding multi channel audio
US10382880B2 (en) 2014-01-03 2019-08-13 Dolby Laboratories Licensing Corporation Methods and systems for designing and applying numerically optimized binaural room impulse responses
EA202090186A3 (ru) 2015-10-09 2020-12-30 Долби Интернешнл Аб Кодирование и декодирование звука с использованием параметров преобразования представления
US10142755B2 (en) * 2016-02-18 2018-11-27 Google Llc Signal processing methods and systems for rendering audio on virtual loudspeaker arrays
US10325610B2 (en) 2016-03-30 2019-06-18 Microsoft Technology Licensing, Llc Adaptive audio rendering
US10492018B1 (en) * 2016-10-11 2019-11-26 Google Llc Symmetric binaural rendering for high-order ambisonics
US9992602B1 (en) 2017-01-12 2018-06-05 Google Llc Decoupled binaural rendering
US10009704B1 (en) 2017-01-30 2018-06-26 Google Llc Symmetric spherical harmonic HRTF rendering
US10158963B2 (en) 2017-01-30 2018-12-18 Google Llc Ambisonic audio with non-head tracked stereo based on head position and time
US10764684B1 (en) 2017-09-29 2020-09-01 Katherine A. Franco Binaural audio using an arbitrarily shaped microphone array
DK180449B1 (en) * 2019-10-05 2021-04-29 Idun Aps A method and system for real-time implementation of head-related transfer functions
US11363402B2 (en) 2019-12-30 2022-06-14 Comhear Inc. Method for providing a spatialized soundfield

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5802180A (en) * 1994-10-27 1998-09-01 Aureal Semiconductor Inc. Method and apparatus for efficient presentation of high-quality three-dimensional audio including ambient effects
WO2000019415A2 (fr) * 1998-09-25 2000-04-06 Creative Technology Ltd. Procede et dispositif de reproduction audio tridimensionnelle
US6181800B1 (en) * 1997-03-10 2001-01-30 Advanced Micro Devices, Inc. System and method for interactive approximation of a head transfer function

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3264489B2 (ja) * 1988-07-08 2002-03-11 アダプティブ オーディオ リミテッド 音響再生装置
JPH08502867A (ja) 1992-10-29 1996-03-26 ウィスコンシン アラムニ リサーチ ファンデーション 指向性音を作る方法及び装置
GB9417185D0 (en) * 1994-08-25 1994-10-12 Adaptive Audio Ltd Sounds recording and reproduction systems
US7231054B1 (en) * 1999-09-24 2007-06-12 Creative Technology Ltd Method and apparatus for three-dimensional audio display
FR2880755A1 (fr) * 2005-01-10 2006-07-14 France Telecom Procede et dispositif d'individualisation de hrtfs par modelisation
WO2007048900A1 (fr) * 2005-10-27 2007-05-03 France Telecom Individualisation de hrtfs utilisant une modelisation par elements finis couplee a un modele correctif

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5802180A (en) * 1994-10-27 1998-09-01 Aureal Semiconductor Inc. Method and apparatus for efficient presentation of high-quality three-dimensional audio including ambient effects
US6181800B1 (en) * 1997-03-10 2001-01-30 Advanced Micro Devices, Inc. System and method for interactive approximation of a head transfer function
WO2000019415A2 (fr) * 1998-09-25 2000-04-06 Creative Technology Ltd. Procede et dispositif de reproduction audio tridimensionnelle

Also Published As

Publication number Publication date
WO2007101958A2 (fr) 2007-09-13
US20090067636A1 (en) 2009-03-12
EP1992198A2 (fr) 2008-11-19
EP1992198B1 (fr) 2016-07-20
US9215544B2 (en) 2015-12-15

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