PT3336839T - Descodificador de áudio e método para fornecer uma informação de áudio descodificada utilizando uma ocultação de erro modificando um sinal de excitação no domínio de tempo - Google Patents

Descodificador de áudio e método para fornecer uma informação de áudio descodificada utilizando uma ocultação de erro modificando um sinal de excitação no domínio de tempo

Info

Publication number
PT3336839T
PT3336839T PT172012197T PT17201219T PT3336839T PT 3336839 T PT3336839 T PT 3336839T PT 172012197 T PT172012197 T PT 172012197T PT 17201219 T PT17201219 T PT 17201219T PT 3336839 T PT3336839 T PT 3336839T
Authority
PT
Portugal
Prior art keywords
providing
time domain
excitation signal
error concealment
domain excitation
Prior art date
Application number
PT172012197T
Other languages
English (en)
Portuguese (pt)
Inventor
Lecomte Jérémie
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of PT3336839T publication Critical patent/PT3336839T/pt

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Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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
    • G10L19/08Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12Determination 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
    • G10L19/125Pitch excitation, e.g. pitch synchronous innovation CELP [PSI-CELP]
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/005Correction of errors induced by the transmission channel, if related to the coding algorithm
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/012Comfort noise or silence coding
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • G10L19/0212Speech 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 orthogonal transformation
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • G10L19/022Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • G10L19/032Quantisation or dequantisation of spectral components
    • G10L19/038Vector quantisation, e.g. TwinVQ audio
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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
    • G10L19/08Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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
    • G10L19/26Pre-filtering or post-filtering
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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
    • G10L19/08Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12Determination 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
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/90Pitch determination of speech signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (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)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
PT172012197T 2013-10-31 2014-10-27 Descodificador de áudio e método para fornecer uma informação de áudio descodificada utilizando uma ocultação de erro modificando um sinal de excitação no domínio de tempo PT3336839T (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13191133 2013-10-31
EP14178825 2014-07-28

Publications (1)

Publication Number Publication Date
PT3336839T true PT3336839T (pt) 2019-11-04

Family

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PT172012221T PT3336841T (pt) 2013-10-31 2014-10-27 Descodificador de áudio e método para fornecer uma informação de áudio descodificada utilizando uma dissimulação de erros que modifica um sinal de excitação de domínio de tempo
PT147895684T PT3063759T (pt) 2013-10-31 2014-10-27 Descodificador de áudio e método para fornecer uma informação de áudio descodificada utilizando uma dissimulação de erros que modifica um sinal de excitação de domínio de tempo
PT172012197T PT3336839T (pt) 2013-10-31 2014-10-27 Descodificador de áudio e método para fornecer uma informação de áudio descodificada utilizando uma ocultação de erro modificando um sinal de excitação no domínio de tempo
PT172012213T PT3336840T (pt) 2013-10-31 2014-10-27 Descodificador de áudio e método para fornecer uma informação de áudio descodificada utilizando uma ocultação de erro modificando um sinal de excitação no domínio de tempo
PT172070930T PT3355305T (pt) 2013-10-31 2014-10-27 Descodificador de áudio e método para fornecer uma informação de áudio descodificada utilizando uma ocultação de erro modificando um sinal de excitação no domínio de tempo

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PT172012221T PT3336841T (pt) 2013-10-31 2014-10-27 Descodificador de áudio e método para fornecer uma informação de áudio descodificada utilizando uma dissimulação de erros que modifica um sinal de excitação de domínio de tempo
PT147895684T PT3063759T (pt) 2013-10-31 2014-10-27 Descodificador de áudio e método para fornecer uma informação de áudio descodificada utilizando uma dissimulação de erros que modifica um sinal de excitação de domínio de tempo

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PT172012213T PT3336840T (pt) 2013-10-31 2014-10-27 Descodificador de áudio e método para fornecer uma informação de áudio descodificada utilizando uma ocultação de erro modificando um sinal de excitação no domínio de tempo
PT172070930T PT3355305T (pt) 2013-10-31 2014-10-27 Descodificador de áudio e método para fornecer uma informação de áudio descodificada utilizando uma ocultação de erro modificando um sinal de excitação no domínio de tempo

Country Status (17)

Country Link
US (7) US10339946B2 (enExample)
EP (6) EP3063759B1 (enExample)
JP (1) JP6306177B2 (enExample)
KR (6) KR101854296B1 (enExample)
CN (1) CN105793924B (enExample)
AU (4) AU2014343905B2 (enExample)
BR (6) BR112016009805B1 (enExample)
CA (6) CA2984066C (enExample)
ES (6) ES2774492T3 (enExample)
MX (4) MX392006B (enExample)
MY (1) MY175460A (enExample)
PL (6) PL3355305T3 (enExample)
PT (5) PT3336841T (enExample)
RU (1) RU2667029C2 (enExample)
SG (6) SG11201603425UA (enExample)
TW (1) TWI571864B (enExample)
WO (1) WO2015063045A1 (enExample)

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