FR2796190B1 - Procede et dispositif de codage audio - Google Patents

Procede et dispositif de codage audio

Info

Publication number
FR2796190B1
FR2796190B1 FR9908634A FR9908634A FR2796190B1 FR 2796190 B1 FR2796190 B1 FR 2796190B1 FR 9908634 A FR9908634 A FR 9908634A FR 9908634 A FR9908634 A FR 9908634A FR 2796190 B1 FR2796190 B1 FR 2796190B1
Authority
FR
France
Prior art keywords
audio signal
fundamental frequency
frequency
coding method
audio coding
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
FR9908634A
Other languages
English (en)
Other versions
FR2796190A1 (fr
Inventor
Francois Capman
Carlo Murgia
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nortel Networks France SAS
Original Assignee
Matra Nortel Communications SAS
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 Matra Nortel Communications SAS filed Critical Matra Nortel Communications SAS
Priority to FR9908634A priority Critical patent/FR2796190B1/fr
Priority to PCT/FR2000/001908 priority patent/WO2001003120A1/fr
Priority to AU62922/00A priority patent/AU6292200A/en
Priority to DE60014086T priority patent/DE60014086D1/de
Priority to EP00949623A priority patent/EP1192621B1/fr
Priority to AT00949623T priority patent/ATE277404T1/de
Publication of FR2796190A1 publication Critical patent/FR2796190A1/fr
Application granted granted Critical
Publication of FR2796190B1 publication Critical patent/FR2796190B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G10L19/04—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
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Cereal-Derived Products (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
FR9908634A 1999-07-05 1999-07-05 Procede et dispositif de codage audio Expired - Fee Related FR2796190B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR9908634A FR2796190B1 (fr) 1999-07-05 1999-07-05 Procede et dispositif de codage audio
PCT/FR2000/001908 WO2001003120A1 (fr) 1999-07-05 2000-07-04 Codage audio avec composants harmoniques
AU62922/00A AU6292200A (en) 1999-07-05 2000-07-04 Audio encoding with harmonic components
DE60014086T DE60014086D1 (de) 1999-07-05 2000-07-04 Audiokodierung mit harmonischen komponenten
EP00949623A EP1192621B1 (fr) 1999-07-05 2000-07-04 Codage audio avec composants harmoniques
AT00949623T ATE277404T1 (de) 1999-07-05 2000-07-04 Audiokodierung mit harmonischen komponenten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9908634A FR2796190B1 (fr) 1999-07-05 1999-07-05 Procede et dispositif de codage audio

Publications (2)

Publication Number Publication Date
FR2796190A1 FR2796190A1 (fr) 2001-01-12
FR2796190B1 true FR2796190B1 (fr) 2002-05-03

Family

ID=9547703

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9908634A Expired - Fee Related FR2796190B1 (fr) 1999-07-05 1999-07-05 Procede et dispositif de codage audio

Country Status (6)

Country Link
EP (1) EP1192621B1 (fr)
AT (1) ATE277404T1 (fr)
AU (1) AU6292200A (fr)
DE (1) DE60014086D1 (fr)
FR (1) FR2796190B1 (fr)
WO (1) WO2001003120A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054072A (en) * 1987-04-02 1991-10-01 Massachusetts Institute Of Technology Coding of acoustic waveforms
US5630011A (en) * 1990-12-05 1997-05-13 Digital Voice Systems, Inc. Quantization of harmonic amplitudes representing speech
US5369724A (en) * 1992-01-17 1994-11-29 Massachusetts Institute Of Technology Method and apparatus for encoding, decoding and compression of audio-type data using reference coefficients located within a band of coefficients
US5787387A (en) * 1994-07-11 1998-07-28 Voxware, Inc. Harmonic adaptive speech coding method and system
JP3653826B2 (ja) * 1995-10-26 2005-06-02 ソニー株式会社 音声復号化方法及び装置

Also Published As

Publication number Publication date
WO2001003120A1 (fr) 2001-01-11
AU6292200A (en) 2001-01-22
FR2796190A1 (fr) 2001-01-12
ATE277404T1 (de) 2004-10-15
DE60014086D1 (de) 2004-10-28
EP1192621B1 (fr) 2004-09-22
EP1192621A1 (fr) 2002-04-03

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Legal Events

Date Code Title Description
CA Change of address
CD Change of name or company name
ST Notification of lapse

Effective date: 20060331