MX357353B - Metodo y aparato de codificacion. - Google Patents

Metodo y aparato de codificacion.

Info

Publication number
MX357353B
MX357353B MX2016006259A MX2016006259A MX357353B MX 357353 B MX357353 B MX 357353B MX 2016006259 A MX2016006259 A MX 2016006259A MX 2016006259 A MX2016006259 A MX 2016006259A MX 357353 B MX357353 B MX 357353B
Authority
MX
Mexico
Prior art keywords
subbands
quantization
subband
frequency domain
envelop
Prior art date
Application number
MX2016006259A
Other languages
English (en)
Other versions
MX2016006259A (es
Inventor
Wang Bin
Liu Zexin
Miao Lei
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 MX2016006259A publication Critical patent/MX2016006259A/es
Publication of MX357353B publication Critical patent/MX357353B/es

Links

Classifications

    • 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
    • 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
    • G10L19/002—Dynamic bit allocation
    • 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
    • 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
    • G10L19/0204—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 using subband decomposition
    • 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
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/035—Scalar quantisation
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Modalidades de la presente invención proporcionan un método de codificación y aparato, los cuales se relacionan con el campo de las comunicaciones y pueden ejecutar una asignación de bits de cuantificación apropiada para coeficientes espectrales de una señal de audio, mejorando así la calidad de una señal obtenida mediante un decodificador por medio de la decodificación; el método incluye: después de dividir los coeficientes espectrales de una trama de datos actual en subbandas, adquirir valores de envoltura de frecuencia cuantificada de las subbandas; modificar valores de envoltura de frecuencia cuantificada de las subbandas de una primera cantidad en las subbandas; asignar bits de cuantificación a las subbandas de acuerdo con los valores de envoltura de frecuencia cuantificada modificados de las subbandas de la primera cantidad; cuantificar un coeficiente espectral de una subbanda a la cual se asigna un bit de cuantificación en las subbandas; y escribir el coeficiente espectral cuantificado de la subbanda a la cual se asigna un bit de cuantificación en una corriente de bits.
MX2016006259A 2013-12-02 2014-07-08 Metodo y aparato de codificacion. MX357353B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310635004 2013-12-02
PCT/CN2014/081813 WO2015081699A1 (zh) 2013-12-02 2014-07-08 一种编码方法及装置

Publications (2)

Publication Number Publication Date
MX2016006259A MX2016006259A (es) 2016-09-07
MX357353B true MX357353B (es) 2018-07-05

Family

ID=53272827

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016006259A MX357353B (es) 2013-12-02 2014-07-08 Metodo y aparato de codificacion.

Country Status (14)

Country Link
US (4) US9754594B2 (es)
EP (4) EP3975173B1 (es)
JP (1) JP6319753B2 (es)
KR (3) KR101803410B1 (es)
CN (1) CN104681028B (es)
AU (2) AU2014360038B2 (es)
BR (1) BR112016006925B1 (es)
CA (1) CA2925037C (es)
ES (2) ES2742420T3 (es)
HK (1) HK1209893A1 (es)
MX (1) MX357353B (es)
RU (1) RU2636697C1 (es)
SG (2) SG10201802826QA (es)
WO (1) WO2015081699A1 (es)

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Also Published As

Publication number Publication date
US20220172730A1 (en) 2022-06-02
AU2018200552B2 (en) 2019-05-23
HK1209893A1 (en) 2016-04-08
AU2014360038A1 (en) 2016-04-14
EP3525206B1 (en) 2021-09-08
BR112016006925B1 (pt) 2020-11-24
CN104681028B (zh) 2016-12-21
EP4407609A2 (en) 2024-07-31
WO2015081699A1 (zh) 2015-06-11
SG11201602234YA (en) 2016-05-30
EP3525206A1 (en) 2019-08-14
US10347257B2 (en) 2019-07-09
JP6319753B2 (ja) 2018-05-09
KR20180118261A (ko) 2018-10-30
CN104681028A (zh) 2015-06-03
US11289102B2 (en) 2022-03-29
EP3040987B1 (en) 2019-05-29
MX2016006259A (es) 2016-09-07
US20170316784A1 (en) 2017-11-02
KR20170132906A (ko) 2017-12-04
CA2925037C (en) 2020-12-01
RU2636697C1 (ru) 2017-11-27
SG10201802826QA (en) 2018-05-30
EP3975173A1 (en) 2022-03-30
JP2016538589A (ja) 2016-12-08
ES2742420T3 (es) 2020-02-14
US20160275955A1 (en) 2016-09-22
EP3975173B1 (en) 2024-01-17
AU2014360038B2 (en) 2017-11-02
EP3040987A4 (en) 2016-08-31
BR112016006925A2 (pt) 2017-08-01
US20190385620A1 (en) 2019-12-19
AU2018200552A1 (en) 2018-02-15
KR102023138B1 (ko) 2019-09-19
KR101803410B1 (ko) 2017-12-28
EP3040987A1 (en) 2016-07-06
CA2925037A1 (en) 2015-06-11
ES2901806T3 (es) 2022-03-23
KR20160055266A (ko) 2016-05-17
KR101913241B1 (ko) 2019-01-14
US9754594B2 (en) 2017-09-05

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