MX2016012064A - Metodo y aparato de decodificacion de flujo de bits de voz/audio. - Google Patents

Metodo y aparato de decodificacion de flujo de bits de voz/audio.

Info

Publication number
MX2016012064A
MX2016012064A MX2016012064A MX2016012064A MX2016012064A MX 2016012064 A MX2016012064 A MX 2016012064A MX 2016012064 A MX2016012064 A MX 2016012064A MX 2016012064 A MX2016012064 A MX 2016012064A MX 2016012064 A MX2016012064 A MX 2016012064A
Authority
MX
Mexico
Prior art keywords
voice frequency
frame
current
decoding
decoding method
Prior art date
Application number
MX2016012064A
Other languages
English (en)
Other versions
MX360279B (es
Inventor
Liu Zexin
Miao Lei
Zhang Xingtao
Original Assignee
Huawei Tech Co Ltd
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 Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of MX2016012064A publication Critical patent/MX2016012064A/es
Publication of MX360279B publication Critical patent/MX360279B/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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • 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
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • 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
    • G10L25/78—Detection of presence or absence of voice signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0002—Codebook adaptations

Abstract

La presente invención describe un método de decodificación de flujo de bits de voz/audio, que incluye: adquirir un parámetro de decodificación de voz/audio de un cuadro de voz/audio actual, donde el cuadro de voz/audio actual anterior es un cuadro decodificado redundante o un cuadro de voz/audio previo al cuadro de voz/audio actual anterior es un cuadro decodificado redundante; realizar procesamiento posterior en el parámetro de decodificación de voz/audio adquirido de acuerdo con parámetros de voz/audio de X cuadros de voz/audio, donde los X cuadros de voz/audio anteriores incluyen M cuadros de voz/audio previos al cuadro de voz/audio actual anterior y/o N cuadros de voz/audio junto al cuadro de voz/audio actual anterior; y recuperar una señal de voz/audio utilizando el parámetro de decodificación de voz/audio post-procesado del cuadro de voz/audio actual anterior. Las soluciones técnicas de la presente invención ayudan a mejorar la calidad de una señal de salida de voz/audio.
MX2016012064A 2014-03-21 2015-01-13 Metodo y aparato de decodificacion de flujo de bits de voz/audio. MX360279B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410108478.6A CN104934035B (zh) 2014-03-21 2014-03-21 语音频码流的解码方法及装置
PCT/CN2015/070594 WO2015139521A1 (zh) 2014-03-21 2015-01-13 语音频码流的解码方法及装置

Publications (2)

Publication Number Publication Date
MX2016012064A true MX2016012064A (es) 2017-01-19
MX360279B MX360279B (es) 2018-10-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016012064A MX360279B (es) 2014-03-21 2015-01-13 Metodo y aparato de decodificacion de flujo de bits de voz/audio.

Country Status (13)

Country Link
US (2) US10269357B2 (es)
EP (1) EP3121812B1 (es)
JP (1) JP6542345B2 (es)
KR (2) KR101839571B1 (es)
CN (4) CN104934035B (es)
AU (1) AU2015234068B2 (es)
BR (1) BR112016020082B1 (es)
CA (1) CA2941540C (es)
MX (1) MX360279B (es)
MY (1) MY184187A (es)
RU (1) RU2644512C1 (es)
SG (1) SG11201607099TA (es)
WO (1) WO2015139521A1 (es)

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Publication number Publication date
CN107369454B (zh) 2020-10-27
CN107369455B (zh) 2020-12-15
EP3121812B1 (en) 2020-03-11
US10269357B2 (en) 2019-04-23
KR20160124877A (ko) 2016-10-28
CA2941540C (en) 2020-08-18
US20190214025A1 (en) 2019-07-11
CN104934035A (zh) 2015-09-23
JP2017515163A (ja) 2017-06-08
US20160372122A1 (en) 2016-12-22
CN107369455A (zh) 2017-11-21
KR101924767B1 (ko) 2019-02-20
CN104934035B (zh) 2017-09-26
CN107369453A (zh) 2017-11-21
WO2015139521A1 (zh) 2015-09-24
KR20180029279A (ko) 2018-03-20
US11031020B2 (en) 2021-06-08
BR112016020082B1 (pt) 2020-04-28
EP3121812A1 (en) 2017-01-25
MX360279B (es) 2018-10-26
CA2941540A1 (en) 2015-09-24
EP3121812A4 (en) 2017-03-15
MY184187A (en) 2021-03-24
RU2644512C1 (ru) 2018-02-12
AU2015234068A1 (en) 2016-09-15
AU2015234068B2 (en) 2017-11-02
SG11201607099TA (en) 2016-10-28
KR101839571B1 (ko) 2018-03-19
JP6542345B2 (ja) 2019-07-10
CN107369454A (zh) 2017-11-21
CN107369453B (zh) 2021-04-20

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