CA2778323C - Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using a detection of a group of previously-decoded spectral values - Google Patents

Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using a detection of a group of previously-decoded spectral values Download PDF

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Publication number
CA2778323C
CA2778323C CA2778323A CA2778323A CA2778323C CA 2778323 C CA2778323 C CA 2778323C CA 2778323 A CA2778323 A CA 2778323A CA 2778323 A CA2778323 A CA 2778323A CA 2778323 C CA2778323 C CA 2778323C
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value
decoded
spectral
spectral values
audio
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English (en)
French (fr)
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CA2778323A1 (en
Inventor
Guillaume Fuchs
Vignesh Subbaraman
Nikolaus Rettelbach
Markus Multrus
Marc Gayer
Patrick Warmbold
Christian Griebel
Oliver Weiss
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Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung eV
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Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung eV
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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
    • 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
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • 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
    • 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

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  • 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)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
CA2778323A 2009-10-20 2010-10-19 Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using a detection of a group of previously-decoded spectral values Active CA2778323C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2907353A CA2907353C (en) 2009-10-20 2010-10-19 Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using a detection of a group of previously-decoded spectral values

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US25345909P 2009-10-20 2009-10-20
US61/253,459 2009-10-20
PCT/EP2010/065725 WO2011048098A1 (en) 2009-10-20 2010-10-19 Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using a detection of a group of previously-decoded spectral values

Related Child Applications (1)

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CA2907353A Division CA2907353C (en) 2009-10-20 2010-10-19 Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using a detection of a group of previously-decoded spectral values

Publications (2)

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CA2778323A1 CA2778323A1 (en) 2011-04-28
CA2778323C true CA2778323C (en) 2016-09-20

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CA2778323A Active CA2778323C (en) 2009-10-20 2010-10-19 Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using a detection of a group of previously-decoded spectral values
CA2778325A Active CA2778325C (en) 2009-10-20 2010-10-19 Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using a region-dependent arithmetic coding mapping rule
CA2907353A Active CA2907353C (en) 2009-10-20 2010-10-19 Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using a detection of a group of previously-decoded spectral values
CA2778368A Active CA2778368C (en) 2009-10-20 2010-10-19 Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using an iterative interval size reduction

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CA2778325A Active CA2778325C (en) 2009-10-20 2010-10-19 Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using a region-dependent arithmetic coding mapping rule
CA2907353A Active CA2907353C (en) 2009-10-20 2010-10-19 Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using a detection of a group of previously-decoded spectral values
CA2778368A Active CA2778368C (en) 2009-10-20 2010-10-19 Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using an iterative interval size reduction

Country Status (18)

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US (10) US8706510B2 (enExample)
EP (3) EP2491553B1 (enExample)
JP (3) JP5707410B2 (enExample)
KR (3) KR101411780B1 (enExample)
CN (3) CN102667921B (enExample)
AR (3) AR078706A1 (enExample)
AU (1) AU2010309820B2 (enExample)
BR (5) BR122022013496B1 (enExample)
CA (4) CA2778323C (enExample)
ES (3) ES2454020T3 (enExample)
MX (3) MX2012004569A (enExample)
MY (3) MY160813A (enExample)
PL (3) PL2491552T3 (enExample)
PT (1) PT2491553T (enExample)
RU (3) RU2596596C2 (enExample)
TW (3) TWI430262B (enExample)
WO (3) WO2011048100A1 (enExample)
ZA (3) ZA201203609B (enExample)

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JP2013508763A (ja) 2013-03-07
TW201137857A (en) 2011-11-01
TWI426504B (zh) 2014-02-11
TW201129969A (en) 2011-09-01

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