CA2005665A1 - Systeme de communication pouvant ameliorer la qualite des paroles au moyen d'une paire de generateurs d'impulsions - Google Patents

Systeme de communication pouvant ameliorer la qualite des paroles au moyen d'une paire de generateurs d'impulsions

Info

Publication number
CA2005665A1
CA2005665A1 CA2005665A CA2005665A CA2005665A1 CA 2005665 A1 CA2005665 A1 CA 2005665A1 CA 2005665 A CA2005665 A CA 2005665A CA 2005665 A CA2005665 A CA 2005665A CA 2005665 A1 CA2005665 A1 CA 2005665A1
Authority
CA
Canada
Prior art keywords
signals
spectrum parameter
sequence
periodicity
pitch parameters
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.)
Granted
Application number
CA2005665A
Other languages
English (en)
Other versions
CA2005665C (fr
Inventor
Kazunori Ozawa
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Publication of CA2005665A1 publication Critical patent/CA2005665A1/fr
Application granted granted Critical
Publication of CA2005665C publication Critical patent/CA2005665C/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
    • G10L19/04—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)
  • 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)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
CA002005665A 1989-03-22 1989-12-15 Systeme de communication pouvant ameliorer la qualite des paroles au moyen d'une paire de generateurs d'impulsions Expired - Fee Related CA2005665C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1071203A JP2903533B2 (ja) 1989-03-22 1989-03-22 音声符号化方式
JP71203/1989 1989-03-22

Publications (2)

Publication Number Publication Date
CA2005665A1 true CA2005665A1 (fr) 1990-09-22
CA2005665C CA2005665C (fr) 1994-02-08

Family

ID=13453884

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002005665A Expired - Fee Related CA2005665C (fr) 1989-03-22 1989-12-15 Systeme de communication pouvant ameliorer la qualite des paroles au moyen d'une paire de generateurs d'impulsions

Country Status (5)

Country Link
US (1) US5027405A (fr)
EP (1) EP0390975B1 (fr)
JP (1) JP2903533B2 (fr)
CA (1) CA2005665C (fr)
DE (1) DE68917584T2 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2051304C (fr) * 1990-09-18 1996-03-05 Tomohiko Taniguchi Systeme de codage et de decodage de paroles
US6006174A (en) 1990-10-03 1999-12-21 Interdigital Technology Coporation Multiple impulse excitation speech encoder and decoder
DE69132987T2 (de) * 1990-11-02 2002-08-29 Nec Corp Verfahren zur Kodierung eines Sprachparameters mittels Übertragung eines spektralen Parameters mit verringerter Datenrate
CA2054849C (fr) * 1990-11-02 1996-03-12 Kazunori Ozawa Methode de codage de parametres vocaux pouvant transmettre un parametre spectral avec un nombre de bits reduit
US5528723A (en) * 1990-12-28 1996-06-18 Motorola, Inc. Digital speech coder and method utilizing harmonic noise weighting
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.
JP2655046B2 (ja) * 1993-09-13 1997-09-17 日本電気株式会社 ベクトル量子化装置
US6064962A (en) * 1995-09-14 2000-05-16 Kabushiki Kaisha Toshiba Formant emphasis method and formant emphasis filter device
JP3196595B2 (ja) * 1995-09-27 2001-08-06 日本電気株式会社 音声符号化装置
JP2778567B2 (ja) * 1995-12-23 1998-07-23 日本電気株式会社 信号符号化装置及び方法
JP4008607B2 (ja) * 1999-01-22 2007-11-14 株式会社東芝 音声符号化／復号化方法
US7139700B1 (en) * 1999-09-22 2006-11-21 Texas Instruments Incorporated Hybrid speech coding and system
EP1543498B1 (fr) * 2002-09-17 2006-05-31 Koninklijke Philips Electronics N.V. Procede de synthese d'un signal vocal non voise
AU2003291205A1 (en) * 2002-11-27 2004-06-23 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Watermarking digital representations that have undergone lossy compression
US20050065787A1 (en) * 2003-09-23 2005-03-24 Jacek Stachurski Hybrid speech coding and system
US10373608B2 (en) 2015-10-22 2019-08-06 Texas Instruments Incorporated Time-based frequency tuning of analog-to-information feature extraction
EP3671741A1 (fr) * 2018-12-21 2020-06-24 FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. Processeur audio et procédé pour générer un signal audio amélioré en fréquence à l'aide d'un traitement d'impulsions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4701954A (en) * 1984-03-16 1987-10-20 American Telephone And Telegraph Company, At&T Bell Laboratories Multipulse LPC speech processing arrangement
US4797926A (en) * 1986-09-11 1989-01-10 American Telephone And Telegraph Company, At&T Bell Laboratories Digital speech vocoder
GB8621932D0 (en) * 1986-09-11 1986-10-15 British Telecomm Speech coding
JP2586043B2 (ja) * 1987-05-14 1997-02-26 日本電気株式会社 マルチパルス符号化装置

Also Published As

Publication number Publication date
JPH02249000A (ja) 1990-10-04
EP0390975B1 (fr) 1994-08-17
CA2005665C (fr) 1994-02-08
JP2903533B2 (ja) 1999-06-07
US5027405A (en) 1991-06-25
EP0390975A1 (fr) 1990-10-10
DE68917584T2 (de) 1994-12-15
DE68917584D1 (de) 1994-09-22

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