MX2016016564A - Aparato y metodo de codificacion de audio. - Google Patents

Aparato y metodo de codificacion de audio.

Info

Publication number
MX2016016564A
MX2016016564A MX2016016564A MX2016016564A MX2016016564A MX 2016016564 A MX2016016564 A MX 2016016564A MX 2016016564 A MX2016016564 A MX 2016016564A MX 2016016564 A MX2016016564 A MX 2016016564A MX 2016016564 A MX2016016564 A MX 2016016564A
Authority
MX
Mexico
Prior art keywords
coding method
coding
sparseness
distribution
audio
Prior art date
Application number
MX2016016564A
Other languages
English (en)
Other versions
MX361248B (es
Inventor
Wang Zhe
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 MX2016016564A publication Critical patent/MX2016016564A/es
Publication of MX361248B publication Critical patent/MX361248B/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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external 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
    • G10L19/02—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
    • 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
    • G10L19/07—Line spectrum pair [LSP] vocoders
    • 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
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/21—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being power information
    • 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
    • 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
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters

Landscapes

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

Abstract

Se proporcionan un método de codificación de audio y un aparato. El método incluye: determinar la dispersión de distribución, en espectros, de energía de N cuadros de audio de entrada (101), en donde los N cuadros de audio incluyen un cuadro de audio actual, y N es un número entero positivo; y determinar de acuerdo a la dispersión de distribución, en los espectros, de la energía de los N cuadros de audio, si se usa un primer método de codificación o un segundo método de codificación para codificar el cuadro de audio actual (102), donde el primer método de codificación es un método de codificación que se basa en la cuantificación del coeficiente de transformada y la transformada de tiempo-frecuencia y que no se basa en la predicción lineal, y el segundo método de codificación es un método de codificación basado en predicción lineal. De acuerdo al método, cuando se codifica un cuadro de audio, se considera la dispersión de distribución, en un espectro, de la energía del cuadro de audio, lo que puede reducir la complejidad de codificación y asegurar que la codificación sea de relativamente alta exactitud.
MX2016016564A 2014-06-24 2015-06-23 Aparato y método de codificación de audio. MX361248B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410288983.3A CN105336338B (zh) 2014-06-24 2014-06-24 音频编码方法和装置
PCT/CN2015/082076 WO2015196968A1 (zh) 2014-06-24 2015-06-23 音频编码方法和装置

Publications (2)

Publication Number Publication Date
MX2016016564A true MX2016016564A (es) 2017-04-25
MX361248B MX361248B (es) 2018-11-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016016564A MX361248B (es) 2014-06-24 2015-06-23 Aparato y método de codificación de audio.

Country Status (17)

Country Link
US (3) US9761239B2 (es)
EP (2) EP3144933B1 (es)
JP (1) JP6426211B2 (es)
KR (2) KR101960152B1 (es)
CN (3) CN107424622B (es)
AU (2) AU2015281506B2 (es)
BR (1) BR112016029380B1 (es)
CA (1) CA2951593C (es)
DK (1) DK3460794T3 (es)
ES (2) ES2883685T3 (es)
HK (1) HK1220542A1 (es)
MX (1) MX361248B (es)
MY (1) MY173129A (es)
PT (1) PT3144933T (es)
RU (1) RU2667380C2 (es)
SG (1) SG11201610302TA (es)
WO (1) WO2015196968A1 (es)

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Also Published As

Publication number Publication date
DK3460794T3 (da) 2021-08-16
US20190311727A1 (en) 2019-10-10
EP3460794B1 (en) 2021-05-26
SG11201610302TA (en) 2017-01-27
CN107424622A (zh) 2017-12-01
AU2015281506B2 (en) 2018-02-22
CN107424621B (zh) 2021-10-26
PT3144933T (pt) 2018-12-18
CN105336338B (zh) 2017-04-12
MY173129A (en) 2019-12-30
US20170345436A1 (en) 2017-11-30
CA2951593A1 (en) 2015-12-30
ES2703199T3 (es) 2019-03-07
HK1220542A1 (zh) 2017-05-05
BR112016029380A2 (pt) 2017-08-22
AU2015281506A1 (en) 2017-01-05
AU2018203619B2 (en) 2020-02-13
EP3144933B1 (en) 2018-09-26
CN107424622B (zh) 2020-12-25
CN107424621A (zh) 2017-12-01
EP3144933A4 (en) 2017-03-22
JP2017523455A (ja) 2017-08-17
ES2883685T3 (es) 2021-12-09
US9761239B2 (en) 2017-09-12
BR112016029380B1 (pt) 2020-10-13
RU2017101813A3 (es) 2018-07-27
RU2667380C2 (ru) 2018-09-19
US10347267B2 (en) 2019-07-09
KR20190029778A (ko) 2019-03-20
RU2017101813A (ru) 2018-07-27
EP3460794A1 (en) 2019-03-27
EP3144933A1 (en) 2017-03-22
US20170103768A1 (en) 2017-04-13
MX361248B (es) 2018-11-30
KR20170015354A (ko) 2017-02-08
AU2018203619A1 (en) 2018-06-14
KR102051928B1 (ko) 2019-12-04
US11074922B2 (en) 2021-07-27
CN105336338A (zh) 2016-02-17
CA2951593C (en) 2019-02-19
WO2015196968A1 (zh) 2015-12-30
KR101960152B1 (ko) 2019-03-19
JP6426211B2 (ja) 2018-11-21

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