DE69602822D1 - Verfahren zur sprachkodierung mittels analyse durch synthese - Google Patents

Verfahren zur sprachkodierung mittels analyse durch synthese

Info

Publication number
DE69602822D1
DE69602822D1 DE69602822T DE69602822T DE69602822D1 DE 69602822 D1 DE69602822 D1 DE 69602822D1 DE 69602822 T DE69602822 T DE 69602822T DE 69602822 T DE69602822 T DE 69602822T DE 69602822 D1 DE69602822 D1 DE 69602822D1
Authority
DE
Germany
Prior art keywords
frames
term
pct
long
analysis
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
DE69602822T
Other languages
English (en)
Other versions
DE69602822T2 (de
Inventor
William Navarro
Michel Mauc
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
Application granted granted Critical
Publication of DE69602822D1 publication Critical patent/DE69602822D1/de
Publication of DE69602822T2 publication Critical patent/DE69602822T2/de
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
    • G10L19/04—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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/93—Discriminating between voiced and unvoiced parts of speech signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
DE69602822T 1995-01-06 1996-01-03 Verfahren zur sprachkodierung mittels analyse durch synthese Expired - Fee Related DE69602822T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9500134A FR2729246A1 (fr) 1995-01-06 1995-01-06 Procede de codage de parole a analyse par synthese
PCT/FR1996/000004 WO1996021218A1 (fr) 1995-01-06 1996-01-03 Procede de codage de parole a analyse par synthese

Publications (2)

Publication Number Publication Date
DE69602822D1 true DE69602822D1 (de) 1999-07-15
DE69602822T2 DE69602822T2 (de) 1999-12-23

Family

ID=9474931

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69602822T Expired - Fee Related DE69602822T2 (de) 1995-01-06 1996-01-03 Verfahren zur sprachkodierung mittels analyse durch synthese

Country Status (9)

Country Link
US (1) US5974377A (de)
EP (1) EP0801788B1 (de)
CN (1) CN1145143C (de)
AT (1) ATE181170T1 (de)
AU (1) AU704229B2 (de)
CA (1) CA2209384C (de)
DE (1) DE69602822T2 (de)
FR (1) FR2729246A1 (de)
WO (1) WO1996021218A1 (de)

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US6957240B2 (en) * 2001-08-08 2005-10-18 Octasic Inc. Method and apparatus for providing an error characterization estimate of an impulse response derived using least squares
US6999509B2 (en) * 2001-08-08 2006-02-14 Octasic Inc. Method and apparatus for generating a set of filter coefficients for a time updated adaptive filter
US6970896B2 (en) 2001-08-08 2005-11-29 Octasic Inc. Method and apparatus for generating a set of filter coefficients
CA2365203A1 (en) * 2001-12-14 2003-06-14 Voiceage Corporation A signal modification method for efficient coding of speech signals
DE602004007945T2 (de) * 2003-09-29 2008-05-15 Koninklijke Philips Electronics N.V. Codierung von audiosignalen
US7792670B2 (en) 2003-12-19 2010-09-07 Motorola, Inc. Method and apparatus for speech coding
US8329884B2 (en) 2004-12-17 2012-12-11 Roche Molecular Systems, Inc. Reagents and methods for detecting Neisseria gonorrhoeae
CN101320565B (zh) * 2007-06-08 2011-05-11 华为技术有限公司 感知加权滤波方法及感知加权滤波器
US9626982B2 (en) * 2011-02-15 2017-04-18 Voiceage Corporation Device and method for quantizing the gains of the adaptive and fixed contributions of the excitation in a CELP codec
FR2987931A1 (fr) * 2012-03-12 2013-09-13 France Telecom Modification des caracteristiques spectrales d'un filtre de prediction lineaire d'un signal audionumerique represente par ses coefficients lsf ou isf.
PT3011561T (pt) 2013-06-21 2017-07-25 Fraunhofer Ges Forschung Aparelho e método para desvanecimento de sinal aperfeiçoado em diferentes domínios durante ocultação de erros
CN105096958B (zh) * 2014-04-29 2017-04-12 华为技术有限公司 音频编码方法及相关装置

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US4868867A (en) * 1987-04-06 1989-09-19 Voicecraft Inc. Vector excitation speech or audio coder for transmission or storage
US4802171A (en) * 1987-06-04 1989-01-31 Motorola, Inc. Method for error correction in digitally encoded speech
US4831624A (en) * 1987-06-04 1989-05-16 Motorola, Inc. Error detection method for sub-band coding
CA1337217C (en) * 1987-08-28 1995-10-03 Daniel Kenneth Freeman Speech coding
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FR2702590B1 (fr) * 1993-03-12 1995-04-28 Dominique Massaloux Dispositif de codage et de décodage numériques de la parole, procédé d'exploration d'un dictionnaire pseudo-logarithmique de délais LTP, et procédé d'analyse LTP.
IT1264766B1 (it) * 1993-04-09 1996-10-04 Sip Codificatore della voce utilizzante tecniche di analisi con un'eccitazione a impulsi.
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JP4005154B2 (ja) * 1995-10-26 2007-11-07 ソニー株式会社 音声復号化方法及び装置
JP3680380B2 (ja) * 1995-10-26 2005-08-10 ソニー株式会社 音声符号化方法及び装置
FR2742568B1 (fr) * 1995-12-15 1998-02-13 Catherine Quinquis Procede d'analyse par prediction lineaire d'un signal audiofrequence, et procedes de codage et de decodage d'un signal audiofrequence en comportant application
US5729694A (en) * 1996-02-06 1998-03-17 The Regents Of The University Of California Speech coding, reconstruction and recognition using acoustics and electromagnetic waves
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Also Published As

Publication number Publication date
WO1996021218A1 (fr) 1996-07-11
DE69602822T2 (de) 1999-12-23
CA2209384A1 (en) 1996-07-11
EP0801788B1 (de) 1999-06-09
CN1145143C (zh) 2004-04-07
EP0801788A1 (de) 1997-10-22
US5974377A (en) 1999-10-26
AU4490196A (en) 1996-07-24
CN1173939A (zh) 1998-02-18
ATE181170T1 (de) 1999-06-15
FR2729246B1 (de) 1997-03-07
AU704229B2 (en) 1999-04-15
FR2729246A1 (fr) 1996-07-12
CA2209384C (en) 2001-05-29

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Legal Events

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8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee