PT3336841T - 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 - Google Patents

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

Info

Publication number
PT3336841T
PT3336841T PT172012221T PT17201222T PT3336841T PT 3336841 T PT3336841 T PT 3336841T PT 172012221 T PT172012221 T PT 172012221T PT 17201222 T PT17201222 T PT 17201222T PT 3336841 T PT3336841 T PT 3336841T
Authority
PT
Portugal
Prior art keywords
providing
time domain
excitation signal
error concealment
domain excitation
Prior art date
Application number
PT172012221T
Other languages
English (en)
Portuguese (pt)
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 PT3336841T publication Critical patent/PT3336841T/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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L19/125—Pitch excitation, e.g. pitch synchronous innovation CELP [PSI-CELP]
    • 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
    • G10L19/012—Comfort noise or silence coding
    • 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
    • G10L19/0212—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 orthogonal transformation
    • 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • 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
    • G10L19/038—Vector quantisation, e.g. TwinVQ audio
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/90—Pitch determination of speech signals
    • 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

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)
PT172012221T 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 PT3336841T (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
PT3336841T true PT3336841T (pt) 2020-03-26

Family

ID=51795635

Family Applications (5)

Application Number Title Priority Date Filing Date
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
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
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
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
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

Family Applications After (4)

Application Number Title Priority Date Filing Date
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
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
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
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

Country Status (17)

Country Link
US (7) US10339946B2 (enExample)
EP (6) EP3336840B1 (enExample)
JP (1) JP6306177B2 (enExample)
KR (6) KR101854296B1 (enExample)
CN (1) CN105793924B (enExample)
AU (4) AU2014343905B2 (enExample)
BR (6) BR122022008596B1 (enExample)
CA (6) CA2928974C (enExample)
ES (6) ES2752213T3 (enExample)
MX (4) MX356036B (enExample)
MY (1) MY175460A (enExample)
PL (6) PL3063759T3 (enExample)
PT (5) PT3336841T (enExample)
RU (1) RU2667029C2 (enExample)
SG (6) SG10201709062UA (enExample)
TW (1) TWI571864B (enExample)
WO (1) WO2015063045A1 (enExample)

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