BR9907665A - Método e aparelho para codificar e decodificar o sinal de voz - Google Patents

Método e aparelho para codificar e decodificar o sinal de voz

Info

Publication number
BR9907665A
BR9907665A BR9907665-9A BR9907665A BR9907665A BR 9907665 A BR9907665 A BR 9907665A BR 9907665 A BR9907665 A BR 9907665A BR 9907665 A BR9907665 A BR 9907665A
Authority
BR
Brazil
Prior art keywords
vector
sym
gain value
voice signal
determined
Prior art date
Application number
BR9907665-9A
Other languages
English (en)
Other versions
BR9907665B1 (pt
Inventor
Pasi Ojala
Original Assignee
Nokia Mobile Phones 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 Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Publication of BR9907665A publication Critical patent/BR9907665A/pt
Publication of BR9907665B1 publication Critical patent/BR9907665B1/pt

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
    • 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
    • G10L19/04—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)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

<B>"MéTODO E APARELHO PARA CODIFICAR E DECODIFICAR O SINAL DE VOZ"<D>. O método para codificar a voz à uma taxa de bits determina, para cada sub-quadro o vetor quantificado d(i) compreendendo um número variável de pulsos. O vetor de excitação c(i) para excitar os filtros de síntese CPL e PLP é derivado pela filtragem do vetor quantificado d(i) e, o valor do ganho g~ c~ é determinado para escalonar a amplitude do pulso do vetor de excitação c(i), tal que o vetor de excitação escalonado representa o sinal residual ponderado <SYM> restante no sub-quadro do sinal de voz, após remover as informações redundantes pela análise CPL e PLP. O valor do ganho predito <SYM>~c~, é determinado através dos subquadros processados previamente e, como uma função da energia E~ c~ contida no vetor de excitação c(i), quando a amplitude do vetor é escalonado de acordo com o número de pulsos m no vetor quantificado d(i). O fator de correção do ganho quantificado <SYM>~ gc~, é então determinado usando o valor do ganho g~ c~ e o valor do ganho predito <SYM>~ c~.
BRPI9907665-9B1A 1998-03-09 1999-02-12 Método e aparelho para codificar e decodificar o sinal de voz BR9907665B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI980532A FI113571B (fi) 1998-03-09 1998-03-09 Puheenkoodaus
PCT/FI1999/000112 WO1999046764A2 (en) 1998-03-09 1999-02-12 Speech coding

Publications (2)

Publication Number Publication Date
BR9907665A true BR9907665A (pt) 2000-10-24
BR9907665B1 BR9907665B1 (pt) 2013-12-31

Family

ID=8551196

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9907665-9B1A BR9907665B1 (pt) 1998-03-09 1999-02-12 Método e aparelho para codificar e decodificar o sinal de voz

Country Status (12)

Country Link
US (1) US6470313B1 (pt)
EP (1) EP1062661B1 (pt)
JP (1) JP3354138B2 (pt)
KR (1) KR100487943B1 (pt)
CN (1) CN1121683C (pt)
AU (1) AU2427099A (pt)
BR (1) BR9907665B1 (pt)
DE (1) DE69900786T2 (pt)
ES (1) ES2171071T3 (pt)
FI (1) FI113571B (pt)
HK (1) HK1035055A1 (pt)
WO (1) WO1999046764A2 (pt)

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JP3887598B2 (ja) * 2002-11-14 2007-02-28 松下電器産業株式会社 確率的符号帳の音源の符号化方法及び復号化方法
US7249014B2 (en) * 2003-03-13 2007-07-24 Intel Corporation Apparatus, methods and articles incorporating a fast algebraic codebook search technique
FI119533B (fi) * 2004-04-15 2008-12-15 Nokia Corp Audiosignaalien koodaus
US7386445B2 (en) * 2005-01-18 2008-06-10 Nokia Corporation Compensation of transient effects in transform coding
UA91853C2 (ru) * 2005-04-01 2010-09-10 Квелкомм Инкорпорейтед Способ и устройство для векторного квантования спектрального представления огибающей
WO2007129726A1 (ja) * 2006-05-10 2007-11-15 Panasonic Corporation 音声符号化装置及び音声符号化方法
US8712766B2 (en) * 2006-05-16 2014-04-29 Motorola Mobility Llc Method and system for coding an information signal using closed loop adaptive bit allocation
WO2008056775A1 (fr) * 2006-11-10 2008-05-15 Panasonic Corporation Dispositif de décodage de paramètre, dispositif de codage de paramètre et procédé de décodage de paramètre
JPWO2008072733A1 (ja) * 2006-12-15 2010-04-02 パナソニック株式会社 符号化装置および符号化方法
EP2159790B1 (en) * 2007-06-27 2019-11-13 NEC Corporation Audio encoding method, audio decoding method, audio encoding device, audio decoding device, program, and audio encoding/decoding system
US20090094026A1 (en) * 2007-10-03 2009-04-09 Binshi Cao Method of determining an estimated frame energy of a communication
CN101499281B (zh) * 2008-01-31 2011-04-27 华为技术有限公司 一种语音编码中的增益量化方法及装置
CN101609674B (zh) * 2008-06-20 2011-12-28 华为技术有限公司 编解码方法、装置和***
CN101741504B (zh) * 2008-11-24 2013-06-12 华为技术有限公司 一种确定信号线性预测编码阶数的方法和装置
US7898763B2 (en) * 2009-01-13 2011-03-01 International Business Machines Corporation Servo pattern architecture to uncouple position error determination from linear position information
US20110051729A1 (en) * 2009-08-28 2011-03-03 Industrial Technology Research Institute and National Taiwan University Methods and apparatuses relating to pseudo random network coding design
US8990094B2 (en) * 2010-09-13 2015-03-24 Qualcomm Incorporated Coding and decoding a transient frame
US8862465B2 (en) 2010-09-17 2014-10-14 Qualcomm Incorporated Determining pitch cycle energy and scaling an excitation signal
US8325073B2 (en) * 2010-11-30 2012-12-04 Qualcomm Incorporated Performing enhanced sigma-delta modulation
RU2591021C2 (ru) * 2011-02-15 2016-07-10 Войсэйдж Корпорейшн Устройство и способ для квантования усилений адаптивного и фиксированного вкладов возбуждения в кодеке celp
US9626982B2 (en) 2011-02-15 2017-04-18 Voiceage Corporation Device and method for quantizing the gains of the adaptive and fixed contributions of the excitation in a CELP codec
CN112741961A (zh) * 2020-12-31 2021-05-04 江苏集萃智能制造技术研究所有限公司 一种便携式集成tensems功能的电子脉冲刺激器

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Also Published As

Publication number Publication date
EP1062661A2 (en) 2000-12-27
JP3354138B2 (ja) 2002-12-09
CN1292914A (zh) 2001-04-25
KR100487943B1 (ko) 2005-05-04
BR9907665B1 (pt) 2013-12-31
DE69900786T2 (de) 2002-09-26
WO1999046764A3 (en) 1999-10-21
CN1121683C (zh) 2003-09-17
WO1999046764A2 (en) 1999-09-16
FI113571B (fi) 2004-05-14
ES2171071T3 (es) 2002-08-16
DE69900786D1 (de) 2002-02-28
JP2002507011A (ja) 2002-03-05
KR20010024935A (ko) 2001-03-26
FI980532A0 (fi) 1998-03-09
EP1062661B1 (en) 2002-01-09
HK1035055A1 (en) 2001-11-09
FI980532A (fi) 1999-09-10
US6470313B1 (en) 2002-10-22
AU2427099A (en) 1999-09-27

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B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 31/12/2013, OBSERVADAS AS CONDICOES LEGAIS.

B25A Requested transfer of rights approved
B25A Requested transfer of rights approved
B15K Others concerning applications: alteration of classification

Ipc: G10L 19/002 (2013.01), G10L 19/06 (2013.0