MX2010002572A - Un metodo y un aparato para descodificar una señal de audio. - Google Patents

Un metodo y un aparato para descodificar una señal de audio.

Info

Publication number
MX2010002572A
MX2010002572A MX2010002572A MX2010002572A MX2010002572A MX 2010002572 A MX2010002572 A MX 2010002572A MX 2010002572 A MX2010002572 A MX 2010002572A MX 2010002572 A MX2010002572 A MX 2010002572A MX 2010002572 A MX2010002572 A MX 2010002572A
Authority
MX
Mexico
Prior art keywords
signal
ambient
component signal
audio signal
decoding
Prior art date
Application number
MX2010002572A
Other languages
English (en)
Inventor
Christof Faller
Yang Won Jung
Hyen-O Oh
Myung Hoon Lee
Original Assignee
Lg Electronics Inc
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 Lg Electronics Inc filed Critical Lg Electronics Inc
Publication of MX2010002572A publication Critical patent/MX2010002572A/es

Links

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
    • G10L19/04—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 using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0272—Voice signal separating
    • 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
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00

Abstract

Se describe un método para descodificar una señal de audio. La presente invención incluye las etapas de recibir la señal de audio que tiene una pluralidad de señales de canal que incluyen una señal de componente ambiental y una señal de componente de origen, extraer la señal de componente ambiental y la señal de componente de origen de cada uno de los canales basándose en una correlación entre las señales de canal, modificar la señal de componente ambiental utilizando información de efecto envolvente, y generar la señal de audio incluyendo una pluralidad de canales que utilizan la señal de componente ambiental modificada y la señal de componente de origen. Por consiguiente, en un aparato para descodificar una señal de audio y método del mismo de acuerdo con la presente invención, una señal de componente ambiental se extrae y se modifica basándose en la correlación y las señales de componente ambiental y de origen modificadas se originan utilizando diferentes unidades de salida de señal, respectivamente. Por lo tanto, la presente invención mejora un efecto estereofónico de la señal de audio. Y, una unidad de salida de señal para originar una señal de componente ambiental se dispone para tener una dirección de salida diferente de aquella de otra unidad de salida de señal para originar una señal de componente de origen, por lo que puede proporcionarse una señal de audio a un oyente de la cual se mejora el sonido ambiental.
MX2010002572A 2007-09-06 2008-09-08 Un metodo y un aparato para descodificar una señal de audio. MX2010002572A (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US97052407P 2007-09-06 2007-09-06
US98471307P 2007-11-01 2007-11-01
US7876108P 2008-07-07 2008-07-07
PCT/KR2008/005291 WO2009031870A1 (en) 2007-09-06 2008-09-08 A method and an apparatus of decoding an audio signal

Publications (1)

Publication Number Publication Date
MX2010002572A true MX2010002572A (es) 2010-05-19

Family

ID=40429078

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2010002572A MX2010002572A (es) 2007-09-06 2008-09-08 Un metodo y un aparato para descodificar una señal de audio.

Country Status (10)

Country Link
US (2) US8422688B2 (es)
EP (2) EP2191462A4 (es)
JP (2) JP2010538571A (es)
KR (2) KR101572894B1 (es)
CN (2) CN101828219B (es)
AU (1) AU2008295723B2 (es)
BR (1) BRPI0816669A2 (es)
CA (1) CA2699004C (es)
MX (1) MX2010002572A (es)
WO (2) WO2009031871A2 (es)

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Also Published As

Publication number Publication date
CA2699004C (en) 2014-02-11
CN101828219A (zh) 2010-09-08
CA2699004A1 (en) 2009-03-12
CN101828219B (zh) 2012-05-09
WO2009031871A3 (en) 2009-04-30
EP2191463A1 (en) 2010-06-02
US20100241438A1 (en) 2010-09-23
AU2008295723B2 (en) 2011-03-24
CN101836249A (zh) 2010-09-15
JP2010538571A (ja) 2010-12-09
AU2008295723A1 (en) 2009-03-12
CN101836249B (zh) 2012-11-28
KR20100063092A (ko) 2010-06-10
WO2009031871A2 (en) 2009-03-12
EP2191462A2 (en) 2010-06-02
US20100250259A1 (en) 2010-09-30
KR101569032B1 (ko) 2015-11-13
EP2191463A4 (en) 2010-09-01
BRPI0816669A2 (pt) 2015-03-17
US8422688B2 (en) 2013-04-16
EP2191462A4 (en) 2010-08-18
KR20100081300A (ko) 2010-07-14
WO2009031870A1 (en) 2009-03-12
EP2191463B1 (en) 2016-01-13
JP2010538572A (ja) 2010-12-09
US8532306B2 (en) 2013-09-10
KR101572894B1 (ko) 2015-11-30

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