ATE468584T1 - Verfahren und vorrichtung zur rekonstruktion des spektrums eines audiosignals - Google Patents

Verfahren und vorrichtung zur rekonstruktion des spektrums eines audiosignals

Info

Publication number
ATE468584T1
ATE468584T1 AT04716626T AT04716626T ATE468584T1 AT E468584 T1 ATE468584 T1 AT E468584T1 AT 04716626 T AT04716626 T AT 04716626T AT 04716626 T AT04716626 T AT 04716626T AT E468584 T1 ATE468584 T1 AT E468584T1
Authority
AT
Austria
Prior art keywords
audio signal
coded
spectrum
coding
spectral reconstruction
Prior art date
Application number
AT04716626T
Other languages
English (en)
Inventor
Pierrick Philippe
Jean-Bernard Rault
Original Assignee
France Telecom
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 France Telecom filed Critical France Telecom
Application granted granted Critical
Publication of ATE468584T1 publication Critical patent/ATE468584T1/de

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
    • G10L19/02—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
    • G10L19/005—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
    • G10L19/02—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
AT04716626T 2003-03-04 2004-03-03 Verfahren und vorrichtung zur rekonstruktion des spektrums eines audiosignals ATE468584T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0302730A FR2852172A1 (fr) 2003-03-04 2003-03-04 Procede et dispositif de reconstruction spectrale d'un signal audio
PCT/FR2004/000488 WO2004081918A1 (fr) 2003-03-04 2004-03-03 Procede et dispositif de reconstruction spectrale d’un signal audio

Publications (1)

Publication Number Publication Date
ATE468584T1 true ATE468584T1 (de) 2010-06-15

Family

ID=32865273

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04716626T ATE468584T1 (de) 2003-03-04 2004-03-03 Verfahren und vorrichtung zur rekonstruktion des spektrums eines audiosignals

Country Status (9)

Country Link
US (1) US7720676B2 (de)
EP (1) EP1599868B1 (de)
JP (1) JP4660470B2 (de)
KR (1) KR101091593B1 (de)
AT (1) ATE468584T1 (de)
DE (1) DE602004027219D1 (de)
ES (1) ES2345489T3 (de)
FR (1) FR2852172A1 (de)
WO (1) WO2004081918A1 (de)

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JP4918841B2 (ja) * 2006-10-23 2012-04-18 富士通株式会社 符号化システム
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US8639519B2 (en) * 2008-04-09 2014-01-28 Motorola Mobility Llc Method and apparatus for selective signal coding based on core encoder performance
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US8423355B2 (en) * 2010-03-05 2013-04-16 Motorola Mobility Llc Encoder for audio signal including generic audio and speech frames
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US9905236B2 (en) * 2012-03-23 2018-02-27 Dolby Laboratories Licensing Corporation Enabling sampling rate diversity in a voice communication system
EP2830061A1 (de) 2013-07-22 2015-01-28 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Codierung und Decodierung eines codierten Audiosignals unter Verwendung von zeitlicher Rausch-/Patch-Formung
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EP3107096A1 (de) 2015-06-16 2016-12-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verkleinerte decodierung
PT3417544T (pt) * 2016-02-17 2020-03-02 Fraunhofer Ges Forschung Pós-processador, pré-processador, codificador de áudio, descodificador de áudio e métodos relacionados para aprimoramento do processamento de transiente
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Also Published As

Publication number Publication date
US7720676B2 (en) 2010-05-18
ES2345489T3 (es) 2010-09-24
US20060265087A1 (en) 2006-11-23
EP1599868B1 (de) 2010-05-19
EP1599868A1 (de) 2005-11-30
JP2006520487A (ja) 2006-09-07
FR2852172A1 (fr) 2004-09-10
JP4660470B2 (ja) 2011-03-30
KR20060007371A (ko) 2006-01-24
KR101091593B1 (ko) 2011-12-13
WO2004081918A1 (fr) 2004-09-23
DE602004027219D1 (de) 2010-07-01

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