CA2984535C - Audio decoder and method for providing a decoded audio information using an error concealment based on a time domain excitation signal - Google Patents

Audio decoder and method for providing a decoded audio information using an error concealment based on a time domain excitation signal Download PDF

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Publication number
CA2984535C
CA2984535C CA2984535A CA2984535A CA2984535C CA 2984535 C CA2984535 C CA 2984535C CA 2984535 A CA2984535 A CA 2984535A CA 2984535 A CA2984535 A CA 2984535A CA 2984535 C CA2984535 C CA 2984535C
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Prior art keywords
audio
error concealment
time domain
excitation signal
pitch
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French (fr)
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CA2984535A1 (en
Inventor
Jeremie Lecomte
Goran MARKOVIC
Michael Schnabel
Grzegorz PIETRZYK
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Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
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Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
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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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • 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
    • G10L19/04—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
    • 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
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor
    • 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
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0011—Long term prediction filters, i.e. pitch estimation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
CA2984535A 2013-10-31 2014-10-27 Audio decoder and method for providing a decoded audio information using an error concealment based on a time domain excitation signal Active CA2984535C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EPEP13191133 2013-10-31
EP13191133 2013-10-31
EP14178824 2014-07-28
EPEP14178824 2014-07-28
CA2929012A CA2929012C (en) 2013-10-31 2014-10-27 Audio decoder and method for providing a decoded audio information using an error concealment based on a time domain excitation signal

Related Parent Applications (1)

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CA2929012A Division CA2929012C (en) 2013-10-31 2014-10-27 Audio decoder and method for providing a decoded audio information using an error concealment based on a time domain excitation signal

Publications (2)

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CA2984535A1 CA2984535A1 (en) 2015-05-07
CA2984535C true CA2984535C (en) 2020-10-27

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CA2984535A Active CA2984535C (en) 2013-10-31 2014-10-27 Audio decoder and method for providing a decoded audio information using an error concealment based on a time domain excitation signal
CA2984532A Active CA2984532C (en) 2013-10-31 2014-10-27 Audio decoder and method for providing a decoded audio information using an error concealment based on a time domain excitation signal
CA2929012A Active CA2929012C (en) 2013-10-31 2014-10-27 Audio decoder and method for providing a decoded audio information using an error concealment based on a time domain excitation signal
CA2984562A Active CA2984562C (en) 2013-10-31 2014-10-27 Audio decoder and method for providing a decoded audio information using an error concealment based on a time domain excitation signal
CA2984573A Active CA2984573C (en) 2013-10-31 2014-10-27 Audio decoder and method for providing a decoded audio information using an error concealment based on a time domain excitation signal

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CA2984532A Active CA2984532C (en) 2013-10-31 2014-10-27 Audio decoder and method for providing a decoded audio information using an error concealment based on a time domain excitation signal
CA2929012A Active CA2929012C (en) 2013-10-31 2014-10-27 Audio decoder and method for providing a decoded audio information using an error concealment based on a time domain excitation signal
CA2984562A Active CA2984562C (en) 2013-10-31 2014-10-27 Audio decoder and method for providing a decoded audio information using an error concealment based on a time domain excitation signal
CA2984573A Active CA2984573C (en) 2013-10-31 2014-10-27 Audio decoder and method for providing a decoded audio information using an error concealment based on a time domain excitation signal

Country Status (20)

Country Link
US (6) US10381012B2 (enExample)
EP (5) EP3063760B1 (enExample)
JP (1) JP6306175B2 (enExample)
KR (4) KR101957905B1 (enExample)
CN (1) CN105765651B (enExample)
AU (5) AU2014343904B2 (enExample)
BR (1) BR112016009819B1 (enExample)
CA (5) CA2984535C (enExample)
ES (5) ES2739477T3 (enExample)
HK (2) HK1251349B (enExample)
MX (3) MX384746B (enExample)
MY (1) MY178139A (enExample)
PL (5) PL3285254T3 (enExample)
PT (5) PT3288026T (enExample)
RU (1) RU2678473C2 (enExample)
SG (3) SG11201603429SA (enExample)
TR (1) TR201802808T4 (enExample)
TW (1) TWI569261B (enExample)
WO (1) WO2015063044A1 (enExample)
ZA (1) ZA201603528B (enExample)

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