MX2015017743A - Metodos y dispositivos de codificacion y decodificacion de señal. - Google Patents

Metodos y dispositivos de codificacion y decodificacion de señal.

Info

Publication number
MX2015017743A
MX2015017743A MX2015017743A MX2015017743A MX2015017743A MX 2015017743 A MX2015017743 A MX 2015017743A MX 2015017743 A MX2015017743 A MX 2015017743A MX 2015017743 A MX2015017743 A MX 2015017743A MX 2015017743 A MX2015017743 A MX 2015017743A
Authority
MX
Mexico
Prior art keywords
sub
bands
basis
encoding
signal encoding
Prior art date
Application number
MX2015017743A
Other languages
English (en)
Other versions
MX359502B (es
Inventor
Zexin Liu
Lei Miao
Chen Hu
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 MX2015017743A publication Critical patent/MX2015017743A/es
Publication of MX359502B publication Critical patent/MX359502B/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Modalidades de la presente invención proporcionan métodos de codificación y decodificación de señal así como dispositivos; el método incluye: determinar, de acuerdo con una cantidad de bits disponibles y un primer umbral de saturación i, una cantidad k de subbandas que se van a codificar, donde i es un número positivo, y k es un entero positivo; seleccionar, de acuerdo con las envolturas cuantificadas de todas las subbandas, k subbandas de entre todas las subbandas, o seleccionar k subbandas de entre todas las subbandas de acuerdo con un modulo psicoacústico, y ejecutar una operación de codificación de primera vez en coeficientes espectrales de las k subbandas; en las modalidades de la presente invención, la cantidad k de subbandas que se van a codificar es determinada de acuerdo con la cantidad de bits disponibles y el primer umbral de saturación, y la codificación es ejecutada en las k subbandas que son seleccionadas de entre todas las subbandas, en lugar de hacerlo en una banda de frecuencia completa, lo cual puede reducir los agujeros de espectro de una señal obtenida a través de la decodificación, y por lo tanto, puede mejorar la calidad auditiva de una señal saliente.
MX2015017743A 2013-07-01 2014-06-25 Metodos y dispositivos de codificacion y decodificacion de señal. MX359502B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310271015.7A CN104282312B (zh) 2013-07-01 2013-07-01 信号编码和解码方法以及设备
PCT/CN2014/080682 WO2015000373A1 (zh) 2013-07-01 2014-06-25 信号编码和解码方法以及设备

Publications (2)

Publication Number Publication Date
MX2015017743A true MX2015017743A (es) 2016-04-04
MX359502B MX359502B (es) 2018-09-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2015017743A MX359502B (es) 2013-07-01 2014-06-25 Metodos y dispositivos de codificacion y decodificacion de señal.

Country Status (18)

Country Link
US (2) US10152981B2 (es)
EP (1) EP2988299A4 (es)
JP (1) JP6289627B2 (es)
KR (2) KR20160003264A (es)
CN (2) CN108198564B (es)
AU (1) AU2014286765B2 (es)
BR (1) BR112015030852A2 (es)
CA (1) CA2912477C (es)
CL (1) CL2015003765A1 (es)
HK (1) HK1206136A1 (es)
IL (1) IL242498B (es)
MX (1) MX359502B (es)
MY (1) MY163240A (es)
NZ (1) NZ714187A (es)
RU (1) RU2633097C2 (es)
SG (1) SG11201509391RA (es)
UA (1) UA113041C2 (es)
WO (1) WO2015000373A1 (es)

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* Cited by examiner, † Cited by third party
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CN106409303B (zh) 2014-04-29 2019-09-20 华为技术有限公司 处理信号的方法及设备
CN112751953A (zh) * 2019-10-31 2021-05-04 北京小米移动软件有限公司 电子设备、控制方法、装置及存储介质
CN113140225B (zh) * 2020-01-20 2024-07-02 腾讯科技（深圳）有限公司 语音信号处理方法、装置、电子设备及存储介质
CN117476013A (zh) * 2022-07-27 2024-01-30 华为技术有限公司 音频信号的处理方法、装置、存储介质及计算机程序产品

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Also Published As

Publication number Publication date
WO2015000373A1 (zh) 2015-01-08
UA113041C2 (uk) 2016-11-25
KR20170089982A (ko) 2017-08-04
AU2014286765A1 (en) 2015-12-03
IL242498B (en) 2021-05-31
CN108198564B (zh) 2021-02-26
CN104282312A (zh) 2015-01-14
US10152981B2 (en) 2018-12-11
EP2988299A1 (en) 2016-02-24
BR112015030852A2 (pt) 2017-07-25
CN104282312B (zh) 2018-02-23
CA2912477C (en) 2019-04-09
RU2015156053A (ru) 2017-08-07
MY163240A (en) 2017-08-30
US10789964B2 (en) 2020-09-29
US20190057706A1 (en) 2019-02-21
CN108198564A (zh) 2018-06-22
CL2015003765A1 (es) 2016-09-23
HK1206136A1 (en) 2015-12-31
CA2912477A1 (en) 2015-01-08
RU2633097C2 (ru) 2017-10-11
US20160111104A1 (en) 2016-04-21
NZ714187A (en) 2017-01-27
SG11201509391RA (en) 2015-12-30
KR20160003264A (ko) 2016-01-08
MX359502B (es) 2018-09-26
JP2016527546A (ja) 2016-09-08
AU2014286765B2 (en) 2017-03-02
JP6289627B2 (ja) 2018-03-14
EP2988299A4 (en) 2016-05-25

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