MX2012008403A - Uso de la decorrelacion multicanal para mezcla ascendente multicanal mejorada. - Google Patents

Uso de la decorrelacion multicanal para mezcla ascendente multicanal mejorada.

Info

Publication number
MX2012008403A
MX2012008403A MX2012008403A MX2012008403A MX2012008403A MX 2012008403 A MX2012008403 A MX 2012008403A MX 2012008403 A MX2012008403 A MX 2012008403A MX 2012008403 A MX2012008403 A MX 2012008403A MX 2012008403 A MX2012008403 A MX 2012008403A
Authority
MX
Mexico
Prior art keywords
multichannel
upmixing
decorrelation
improved
linear equations
Prior art date
Application number
MX2012008403A
Other languages
English (en)
Inventor
David S Mcgrath
Original Assignee
Dolby Lab 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
Application filed by Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Publication of MX2012008403A publication Critical patent/MX2012008403A/es

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis

Abstract

Un sistema de ecuaciones lineales se utiliza para realizar una mezcla ascendente de una cantidad N de señales de audio a fin de generar una cantidad mayor M de señales de audio que se decorrelacionan psicoacústicamente entre sí y que pueden usarse para mejorar la representación de un campo de sonido difuso. Las ecuaciones lineales se definen mediante una matriz que especifica un conjunto de vectores en un espacio M-dimensional que son sustancialmente ortogonales entre sí. Se revelan métodos para derivar el sistema de ecuaciones lineales.
MX2012008403A 2010-01-22 2011-01-07 Uso de la decorrelacion multicanal para mezcla ascendente multicanal mejorada. MX2012008403A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29769910P 2010-01-22 2010-01-22
PCT/US2011/020561 WO2011090834A1 (en) 2010-01-22 2011-01-07 Using multichannel decorrelation for improved multichannel upmixing

Publications (1)

Publication Number Publication Date
MX2012008403A true MX2012008403A (es) 2012-08-15

Family

ID=43766522

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2012008403A MX2012008403A (es) 2010-01-22 2011-01-07 Uso de la decorrelacion multicanal para mezcla ascendente multicanal mejorada.

Country Status (12)

Country Link
US (1) US9269360B2 (es)
EP (1) EP2526547B1 (es)
JP (1) JP5612125B2 (es)
KR (1) KR101380167B1 (es)
CN (1) CN102714039B (es)
AR (1) AR081098A1 (es)
BR (1) BR112012018291B1 (es)
ES (1) ES2588222T3 (es)
MX (1) MX2012008403A (es)
RU (1) RU2519045C2 (es)
TW (1) TWI444989B (es)
WO (1) WO2011090834A1 (es)

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KR101760248B1 (ko) 2013-05-24 2017-07-21 돌비 인터네셔널 에이비 오디오 오브젝트들을 포함한 오디오 장면들의 효율적 코딩
CN109712630B (zh) 2013-05-24 2023-05-30 杜比国际公司 包括音频对象的音频场景的高效编码
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CN104484559B (zh) * 2014-12-09 2017-07-04 大连楼兰科技股份有限公司 数字信号的解析方法及其解析装置
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CN114303395A (zh) * 2019-09-03 2022-04-08 杜比实验室特许公司 具有解相关分量的音频滤波器组
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Also Published As

Publication number Publication date
BR112012018291B1 (pt) 2020-10-27
CN102714039A (zh) 2012-10-03
EP2526547B1 (en) 2016-07-06
US20120321105A1 (en) 2012-12-20
JP2013517687A (ja) 2013-05-16
RU2012134496A (ru) 2014-02-27
RU2519045C2 (ru) 2014-06-10
US9269360B2 (en) 2016-02-23
AR081098A1 (es) 2012-06-13
KR20120102127A (ko) 2012-09-17
ES2588222T3 (es) 2016-10-31
EP2526547A1 (en) 2012-11-28
JP5612125B2 (ja) 2014-10-22
BR112012018291A2 (pt) 2018-06-05
TW201140561A (en) 2011-11-16
TWI444989B (zh) 2014-07-11
WO2011090834A1 (en) 2011-07-28
KR101380167B1 (ko) 2014-04-02
CN102714039B (zh) 2014-09-10

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