BR112013032878A2 - método e aparelho para mudar as posições relativas de objetos de som contidos dentro de uma representação ambisônica de ordem superior - Google Patents

método e aparelho para mudar as posições relativas de objetos de som contidos dentro de uma representação ambisônica de ordem superior

Info

Publication number
BR112013032878A2
BR112013032878A2 BR112013032878A BR112013032878A BR112013032878A2 BR 112013032878 A2 BR112013032878 A2 BR 112013032878A2 BR 112013032878 A BR112013032878 A BR 112013032878A BR 112013032878 A BR112013032878 A BR 112013032878A BR 112013032878 A2 BR112013032878 A2 BR 112013032878A2
Authority
BR
Brazil
Prior art keywords
order ambisonic
sound
representation
spatial
changing
Prior art date
Application number
BR112013032878A
Other languages
English (en)
Other versions
BR112013032878B1 (pt
Inventor
Johann-Markus Batke
Peter Jax
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Publication of BR112013032878A2 publication Critical patent/BR112013032878A2/pt
Publication of BR112013032878B1 publication Critical patent/BR112013032878B1/pt

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 
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • 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
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2205/00—Details of stereophonic arrangements covered by H04R5/00 but not provided for in any of its subgroups
    • H04R2205/024—Positioning of loudspeaker enclosures for spatial sound reproduction
    • 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
    • H04S2400/11—Positioning of individual sound objects, e.g. moving airplane, within a sound field
    • 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
    • H04S2420/11—Application of ambisonics in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Stereophonic System (AREA)

Abstract

resumo “método e aparelho para mudar as posições relativas de objetos de som contidos dentro de uma representação ambisônica de ordem superior” ambisônica de ordem superior hoa é uma representação de campos de som es-pacial que facilita a captura, manipulação, gravação, transmissão e reprodução de cenas de áudio complexas com resolução espacial superior, tanto em 2d como em 3d. o campo de som está aproximadamente em, e em torno de um ponto de referência no espaço por inter-médio de uma série de fourier-bessel. a invenção utiliza ajuste de espaço (12, 13, 14; 16) para modificar o conteúdo espacial e/ou a reprodução de informação de campo de som que foi capturada ou produzida como representação ambisônica de ordem superior. característi-cas de ajuste diferentes são exeqüíveis para campos de som 2d e 3d. o ajuste é realizado em domínio de espaço sem realizar análise de cena ou decomposição. coeficientes hoa de entrada com uma ordem determinada são decodificados para os pesos ou sinais de entrada de altofalantes regularmente posicionados (virtuais).
BR112013032878-9A 2011-06-30 2012-06-15 Método e aparelho para mudar as posições relativas de objetos de som contidos dentro de uma representação ambisônica de ordem superior BR112013032878B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11305845A EP2541547A1 (en) 2011-06-30 2011-06-30 Method and apparatus for changing the relative positions of sound objects contained within a higher-order ambisonics representation
EP11305845.7 2011-06-30
PCT/EP2012/061477 WO2013000740A1 (en) 2011-06-30 2012-06-15 Method and apparatus for changing the relative positions of sound objects contained within a higher-order ambisonics representation

Publications (2)

Publication Number Publication Date
BR112013032878A2 true BR112013032878A2 (pt) 2017-01-24
BR112013032878B1 BR112013032878B1 (pt) 2021-04-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
BR112013032878-9A BR112013032878B1 (pt) 2011-06-30 2012-06-15 Método e aparelho para mudar as posições relativas de objetos de som contidos dentro de uma representação ambisônica de ordem superior

Country Status (11)

Country Link
US (1) US9338574B2 (pt)
EP (2) EP2541547A1 (pt)
JP (1) JP5921678B2 (pt)
KR (1) KR102012988B1 (pt)
CN (1) CN103635964B (pt)
AU (1) AU2012278094B2 (pt)
BR (1) BR112013032878B1 (pt)
DK (1) DK2727109T3 (pt)
HU (1) HUE051678T2 (pt)
TW (1) TWI526088B (pt)
WO (1) WO2013000740A1 (pt)

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CN109036441B (zh) * 2014-03-24 2023-06-06 杜比国际公司 对高阶高保真立体声信号应用动态范围压缩的方法和设备
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Also Published As

Publication number Publication date
AU2012278094B2 (en) 2017-07-27
JP5921678B2 (ja) 2016-05-24
JP2014523172A (ja) 2014-09-08
KR102012988B1 (ko) 2019-08-21
TWI526088B (zh) 2016-03-11
KR20140051927A (ko) 2014-05-02
AU2012278094A1 (en) 2014-01-16
TW201301911A (zh) 2013-01-01
US20140133660A1 (en) 2014-05-15
HUE051678T2 (hu) 2021-03-29
CN103635964B (zh) 2016-05-04
EP2727109B1 (en) 2020-08-05
EP2727109A1 (en) 2014-05-07
DK2727109T3 (da) 2020-08-31
US9338574B2 (en) 2016-05-10
BR112013032878B1 (pt) 2021-04-13
WO2013000740A1 (en) 2013-01-03
EP2541547A1 (en) 2013-01-02
CN103635964A (zh) 2014-03-12

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