BR112016006583A2 - método e aparelho para prever sinal de excitação de alta banda, e decodificador - Google Patents

método e aparelho para prever sinal de excitação de alta banda, e decodificador

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Publication number
BR112016006583A2
BR112016006583A2 BR112016006583A BR112016006583A BR112016006583A2 BR 112016006583 A2 BR112016006583 A2 BR 112016006583A2 BR 112016006583 A BR112016006583 A BR 112016006583A BR 112016006583 A BR112016006583 A BR 112016006583A BR 112016006583 A2 BR112016006583 A2 BR 112016006583A2
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BR
Brazil
Prior art keywords
frequency
excitation signal
spectral
parameters
predicting
Prior art date
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BR112016006583A
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English (en)
Other versions
BR112016006583B1 (pt
Inventor
Miao Lei
Liu Zexin
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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.)
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Publication date
Application filed by Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of BR112016006583A2 publication Critical patent/BR112016006583A2/pt
Publication of BR112016006583B1 publication Critical patent/BR112016006583B1/pt

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    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading 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
    • 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
    • G10L19/0208—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
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] 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
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0016—Codebook for LPC parameters

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)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

resumo “método e aparelho para prever sinal de excitação de alta frequência” trata-se de um método e um aparelho para prever um sinal de excitação de alta frequência. o método inclui: adquirir, de acordo com um fluxo de bits de baixa frequência recebido, um conjunto de parâmetros de frequência espectral que está disposto em uma ordem de frequências, em que os parâmetros de frequência espectral incluem parâmetros de lsf de baixa frequência ou parâmetros de isf de baixa frequência; para o conjunto de parâmetros de frequência espectral, calcular uma diferença de parâmetro de frequência espectral (102) entre cada dois parâmetros de frequência espectral que têm um mesmo intervalo de posição em alguns ou todos os parâmetros de frequência espectral; adquirir uma diferença de parâmetro de frequência espectral mínima (103) a partir das diferenças de parâmetro de frequência espectral calculadas; determinar, de acordo com um bin de frequência que corresponde à diferença de parâmetro de frequência espectral mínima, um bin de frequência de partida (104) para prever um sinal de excitação de alta frequência a partir de uma baixa frequência; e prever o sinal de excitação de alta frequência (105) a partir da baixa frequência de acordo com o bin de frequência de partida. implantando-se essa modalidade, um sinal de excitação de alta frequência pode ser melhor previsto, aprimorando, assim, o desempenho do sinal de excitação de alta frequência. 1/1
BR112016006583A 2013-09-26 2014-04-03 método e aparelho para prever sinal de excitação de alta frequência BR112016006583B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310444734.4A CN104517611B (zh) 2013-09-26 2013-09-26 一种高频激励信号预测方法及装置
PCT/CN2014/074711 WO2015043151A1 (zh) 2013-09-26 2014-04-03 一种高频激励信号预测方法及装置

Publications (2)

Publication Number Publication Date
BR112016006583A2 true BR112016006583A2 (pt) 2017-09-12
BR112016006583B1 BR112016006583B1 (pt) 2019-11-26

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BR112016006583A BR112016006583B1 (pt) 2013-09-26 2014-04-03 método e aparelho para prever sinal de excitação de alta frequência

Country Status (16)

Country Link
US (3) US9685165B2 (pt)
EP (3) EP4339946A3 (pt)
JP (2) JP6420324B2 (pt)
KR (2) KR101805794B1 (pt)
CN (2) CN104517611B (pt)
AU (1) AU2014328353B2 (pt)
BR (1) BR112016006583B1 (pt)
CA (1) CA2924952C (pt)
ES (1) ES2716152T3 (pt)
HK (1) HK1206139A1 (pt)
MX (1) MX353022B (pt)
MY (1) MY166226A (pt)
RU (1) RU2637885C2 (pt)
SG (1) SG11201602225WA (pt)
WO (1) WO2015043151A1 (pt)
ZA (2) ZA201601991B (pt)

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Also Published As

Publication number Publication date
CN105761723B (zh) 2019-01-15
EP3051534A1 (en) 2016-08-03
JP2019023749A (ja) 2019-02-14
MY166226A (en) 2018-06-22
JP2016532138A (ja) 2016-10-13
KR101805794B1 (ko) 2017-12-07
US9685165B2 (en) 2017-06-20
EP3573057B1 (en) 2024-06-05
CA2924952C (en) 2018-06-19
AU2014328353A1 (en) 2016-04-14
KR101894927B1 (ko) 2018-09-04
CN104517611B (zh) 2016-05-25
RU2016116016A (ru) 2017-11-01
US20170249948A1 (en) 2017-08-31
AU2014328353B2 (en) 2017-04-20
RU2637885C2 (ru) 2017-12-07
EP3051534B1 (en) 2019-01-02
EP4339946A3 (en) 2024-04-24
ES2716152T3 (es) 2019-06-10
EP3051534A4 (en) 2017-05-03
ZA201707083B (en) 2018-11-28
US20160210979A1 (en) 2016-07-21
US20190272838A1 (en) 2019-09-05
EP3573057A1 (en) 2019-11-27
CN105761723A (zh) 2016-07-13
JP6420324B2 (ja) 2018-11-07
KR20160055268A (ko) 2016-05-17
MX2016003882A (es) 2016-06-17
EP4339946A2 (en) 2024-03-20
JP6720266B2 (ja) 2020-07-08
WO2015043151A1 (zh) 2015-04-02
ZA201601991B (en) 2019-04-24
US10339944B2 (en) 2019-07-02
BR112016006583B1 (pt) 2019-11-26
CA2924952A1 (en) 2015-04-02
CN104517611A (zh) 2015-04-15
US10607620B2 (en) 2020-03-31
MX353022B (es) 2017-12-18
HK1206139A1 (zh) 2015-12-31
KR20170137944A (ko) 2017-12-13
SG11201602225WA (en) 2016-05-30

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