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MX2016003882A - Metodo y aparato para predecir una señal de excitacion de banda alta. - Google Patents

Metodo y aparato para predecir una señal de excitacion de banda alta.

Info

Publication number
MX2016003882A
MX2016003882A MX2016003882A MX2016003882A MX2016003882A MX 2016003882 A MX2016003882 A MX 2016003882A MX 2016003882 A MX2016003882 A MX 2016003882A MX 2016003882 A MX2016003882 A MX 2016003882A MX 2016003882 A MX2016003882 A MX 2016003882A
Authority
MX
Mexico
Prior art keywords
frequency
excitation signal
parameters
spectral
low
Prior art date
Application number
MX2016003882A
Other languages
English (en)
Other versions
MX353022B (es
Inventor
Zexin Liu
Lei Miao
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 MX2016003882A publication Critical patent/MX2016003882A/es
Publication of MX353022B publication Critical patent/MX353022B/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
    • 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
    • G10L19/06—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
    • G10L19/02—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
    • 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
    • G10L19/04—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
    • G10L19/18—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)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)

Abstract

Un método y un aparato para predecir una señal de excitación de banda alta. El método incluye: adquirir, de acuerdo con un flujo de bits de banda baja recibido, un conjunto de parámetros de frecuencia espectral que están dispuestos en un orden de frecuencias, donde los parámetros espectrales de frecuencia incluyen parámetros LSF de banda baja o parámetros ISF de banda baja; para el conjunto de parámetros de frecuencia espectral, calcular una diferencia de parámetro de frecuencia espectral (102) entre cada dos parámetros de frecuencia espectral que tienen un mismo intervalo de posición en algunos o todos de los parámetros de frecuencia espectral; adquirir una mínima diferencia de parámetro de frecuencia espectral (103) a partir de las diferencias de parámetro de frecuencia espectral calculadas; determinar, de acuerdo con un contenedor de frecuencia que corresponde a la mínima diferencia de parámetro de frecuencia espectral, un contenedor de frecuencia de inicio (104) para predecir una señal de excitación de banda alta de una banda de baja; y predecir la señal de excitación de banda alta (105) de la banda bajá de acuerdo al contenedor de frecuencia de inicio. Al implementar las modalidades de la presente invención, una señal de excitación de banda alta puede predecirse mejor, mejorando así el rendimiento de la señal de excitación de banda alta.
MX2016003882A 2013-09-26 2014-04-03 Método y aparato para predecir una señal de excitación de banda alta. MX353022B (es)

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
MX2016003882A true MX2016003882A (es) 2016-06-17
MX353022B MX353022B (es) 2017-12-18

Family

ID=52741932

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016003882A MX353022B (es) 2013-09-26 2014-04-03 Método y aparato para predecir una señal de excitación de banda alta.

Country Status (16)

Country Link
US (3) US9685165B2 (es)
EP (3) EP3573057B1 (es)
JP (2) JP6420324B2 (es)
KR (2) KR101894927B1 (es)
CN (2) CN105761723B (es)
AU (1) AU2014328353B2 (es)
BR (1) BR112016006583B1 (es)
CA (1) CA2924952C (es)
ES (1) ES2716152T3 (es)
MX (1) MX353022B (es)
MY (1) MY166226A (es)
PL (1) PL3573057T3 (es)
RU (1) RU2637885C2 (es)
SG (1) SG11201602225WA (es)
WO (1) WO2015043151A1 (es)
ZA (2) ZA201601991B (es)

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Also Published As

Publication number Publication date
BR112016006583A2 (pt) 2017-09-12
EP3051534B1 (en) 2019-01-02
JP6420324B2 (ja) 2018-11-07
ZA201707083B (en) 2018-11-28
US10607620B2 (en) 2020-03-31
AU2014328353A1 (en) 2016-04-14
AU2014328353B2 (en) 2017-04-20
CN105761723A (zh) 2016-07-13
SG11201602225WA (en) 2016-05-30
CN105761723B (zh) 2019-01-15
JP2016532138A (ja) 2016-10-13
CN104517611A (zh) 2015-04-15
CA2924952A1 (en) 2015-04-02
KR101894927B1 (ko) 2018-09-04
KR20170137944A (ko) 2017-12-13
EP4339946A2 (en) 2024-03-20
ES2716152T3 (es) 2019-06-10
CA2924952C (en) 2018-06-19
US20170249948A1 (en) 2017-08-31
CN104517611B (zh) 2016-05-25
EP3573057A1 (en) 2019-11-27
ZA201601991B (en) 2019-04-24
RU2016116016A (ru) 2017-11-01
EP3573057B1 (en) 2024-06-05
JP6720266B2 (ja) 2020-07-08
MY166226A (en) 2018-06-22
US9685165B2 (en) 2017-06-20
WO2015043151A1 (zh) 2015-04-02
KR20160055268A (ko) 2016-05-17
MX353022B (es) 2017-12-18
US20160210979A1 (en) 2016-07-21
US20190272838A1 (en) 2019-09-05
EP4339946A3 (en) 2024-04-24
JP2019023749A (ja) 2019-02-14
EP3051534A1 (en) 2016-08-03
HK1206139A1 (zh) 2015-12-31
PL3573057T3 (pl) 2024-09-16
US10339944B2 (en) 2019-07-02
BR112016006583B1 (pt) 2019-11-26
KR101805794B1 (ko) 2017-12-07
RU2637885C2 (ru) 2017-12-07
EP3051534A4 (en) 2017-05-03

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