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MX2016011692A - Codificador, descodificador y metodo para codificar y descodificar. - Google Patents

Codificador, descodificador y metodo para codificar y descodificar.

Info

Publication number
MX2016011692A
MX2016011692A MX2016011692A MX2016011692A MX2016011692A MX 2016011692 A MX2016011692 A MX 2016011692A MX 2016011692 A MX2016011692 A MX 2016011692A MX 2016011692 A MX2016011692 A MX 2016011692A MX 2016011692 A MX2016011692 A MX 2016011692A
Authority
MX
Mexico
Prior art keywords
audio signal
residual signal
signal
quantize
transformed residual
Prior art date
Application number
MX2016011692A
Other languages
English (en)
Other versions
MX363348B (es
Inventor
Bäckström Tom
Helmrich Christian
Fischer Johannes
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2016011692A publication Critical patent/MX2016011692A/es
Publication of MX363348B publication Critical patent/MX363348B/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
    • G10L19/04—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 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
    • G10L19/16—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 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
    • G10L19/0212—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 orthogonal transformation
    • 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
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
    • 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
    • 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
    • G10L19/038—Vector quantisation, e.g. TwinVQ audio
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
    • G10L19/107—Sparse pulse excitation, e.g. by using algebraic codebook

Landscapes

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

Abstract

Un codificador para codificar una señal de audio en un flujo de datos que comprende un predictor, un factorizador, un transformador y una etapa de cuantización y codificación. El predictor está configurado para analizar la señal de audio para obtener coeficientes de predicción que describan un análogo espectral de la señal de audio o una frecuencia fundamental de la señal de audio y someter la señal de audio a una función de filtro de análisis dependiente de los coeficientes de predicción para producir una señal residual de la señal de audio. El factorizador está configurado para aplicar una factorización de matriz sobre una matriz de autocorrelación o covarianza de la función de filtro de síntesis definida por los coeficientes de predicción para obtener matrices factorizadas. El transformador está configurado para transformar la señal residual con base en las matrices factorizadas para obtener una señal residual transformada. La etapa de cuantización y descodificación está configurada para cuantizar la señal residual transformada para obtener una señal residual transformada, cuantizada o una señal residual transformada, cuantizada codificada.
MX2016011692A 2014-03-14 2015-03-03 Codificador, descodificador y metodo para codificar y descodificar. MX363348B (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP14159811 2014-03-14
EP14182047.2A EP2919232A1 (en) 2014-03-14 2014-08-22 Encoder, decoder and method for encoding and decoding
PCT/EP2015/054396 WO2015135797A1 (en) 2014-03-14 2015-03-03 Encoder, decoder and method for encoding and decoding

Publications (2)

Publication Number Publication Date
MX2016011692A true MX2016011692A (es) 2017-01-06
MX363348B MX363348B (es) 2019-03-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016011692A MX363348B (es) 2014-03-14 2015-03-03 Codificador, descodificador y metodo para codificar y descodificar.

Country Status (10)

Country Link
US (1) US10586548B2 (es)
EP (2) EP2919232A1 (es)
JP (1) JP6543640B2 (es)
KR (1) KR101885193B1 (es)
CN (1) CN106415716B (es)
BR (1) BR112016020841B1 (es)
CA (1) CA2942586C (es)
MX (1) MX363348B (es)
RU (1) RU2662407C2 (es)
WO (1) WO2015135797A1 (es)

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CN110324622B (zh) 2018-03-28 2022-09-23 腾讯科技（深圳）有限公司 一种视频编码码率控制方法、装置、设备及存储介质
CN109036452A (zh) * 2018-09-05 2018-12-18 北京邮电大学 一种语音信息处理方法、装置、电子设备及存储介质
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Also Published As

Publication number Publication date
MX363348B (es) 2019-03-20
RU2662407C2 (ru) 2018-07-25
JP6543640B2 (ja) 2019-07-10
CA2942586C (en) 2021-11-09
JP2017516125A (ja) 2017-06-15
US10586548B2 (en) 2020-03-10
KR20160122212A (ko) 2016-10-21
US20160372128A1 (en) 2016-12-22
WO2015135797A1 (en) 2015-09-17
CN106415716B (zh) 2020-03-17
RU2016140233A (ru) 2018-04-16
KR101885193B1 (ko) 2018-08-03
BR112016020841A2 (es) 2017-08-15
CA2942586A1 (en) 2015-09-17
CN106415716A (zh) 2017-02-15
EP2919232A1 (en) 2015-09-16
BR112016020841B1 (pt) 2023-02-23
EP3117430A1 (en) 2017-01-18

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