FR2796189B1 - Procedes et dispositifs de codage et de decodage audio - Google Patents

Procedes et dispositifs de codage et de decodage audio

Info

Publication number
FR2796189B1
FR2796189B1 FR9908633A FR9908633A FR2796189B1 FR 2796189 B1 FR2796189 B1 FR 2796189B1 FR 9908633 A FR9908633 A FR 9908633A FR 9908633 A FR9908633 A FR 9908633A FR 2796189 B1 FR2796189 B1 FR 2796189B1
Authority
FR
France
Prior art keywords
devices
audio encoding
decoding methods
decoding
methods
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
FR9908633A
Other languages
English (en)
Other versions
FR2796189A1 (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 FR9908633A priority Critical patent/FR2796189B1/fr
Priority to EP00949624A priority patent/EP1190414A1/fr
Priority to AU62923/00A priority patent/AU6292300A/en
Priority to PCT/FR2000/001909 priority patent/WO2001003121A1/fr
Publication of FR2796189A1 publication Critical patent/FR2796189A1/fr
Application granted granted Critical
Publication of FR2796189B1 publication Critical patent/FR2796189B1/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
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/24—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being the cepstrum

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
FR9908633A 1999-07-05 1999-07-05 Procedes et dispositifs de codage et de decodage audio Expired - Fee Related FR2796189B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR9908633A FR2796189B1 (fr) 1999-07-05 1999-07-05 Procedes et dispositifs de codage et de decodage audio
EP00949624A EP1190414A1 (fr) 1999-07-05 2000-07-04 Codage et decodage audio avec composantes harmoniques et phase minimale
AU62923/00A AU6292300A (en) 1999-07-05 2000-07-04 Encoding and decoding with harmonic components and minimum phase
PCT/FR2000/001909 WO2001003121A1 (fr) 1999-07-05 2000-07-04 Codage et decodage audio avec composants harmoniques et phase minimale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9908633A FR2796189B1 (fr) 1999-07-05 1999-07-05 Procedes et dispositifs de codage et de decodage audio

Publications (2)

Publication Number Publication Date
FR2796189A1 FR2796189A1 (fr) 2001-01-12
FR2796189B1 true FR2796189B1 (fr) 2001-10-05

Family

ID=9547702

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9908633A Expired - Fee Related FR2796189B1 (fr) 1999-07-05 1999-07-05 Procedes et dispositifs de codage et de decodage audio

Country Status (4)

Country Link
EP (1) EP1190414A1 (fr)
AU (1) AU6292300A (fr)
FR (1) FR2796189B1 (fr)
WO (1) WO2001003121A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE480851T1 (de) 2004-10-28 2010-09-15 Panasonic Corp Skalierbare codierungsvorrichtung, skalierbare decodierungsvorrichtung und verfahren dafür
CN111685760B (zh) * 2020-07-21 2022-06-03 四川长虹电器股份有限公司 一种基于雷达测量的人体呼吸频率计算方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3137805B2 (ja) * 1993-05-21 2001-02-26 三菱電機株式会社 音声符号化装置、音声復号化装置、音声後処理装置及びこれらの方法
JPH08123494A (ja) * 1994-10-28 1996-05-17 Mitsubishi Electric Corp 音声符号化装置、音声復号化装置、音声符号化復号化方法およびこれらに使用可能な位相振幅特性導出装置
US5701391A (en) * 1995-10-31 1997-12-23 Motorola, Inc. Method and system for compressing a speech signal using envelope modulation

Also Published As

Publication number Publication date
AU6292300A (en) 2001-01-22
FR2796189A1 (fr) 2001-01-12
WO2001003121A1 (fr) 2001-01-11
EP1190414A1 (fr) 2002-03-27

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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: 20070330