CA2084338A1 - Methode de codage de paroles et codeur de paroles - Google Patents

Methode de codage de paroles et codeur de paroles

Info

Publication number
CA2084338A1
CA2084338A1 CA2084338A CA2084338A CA2084338A1 CA 2084338 A1 CA2084338 A1 CA 2084338A1 CA 2084338 A CA2084338 A CA 2084338A CA 2084338 A CA2084338 A CA 2084338A CA 2084338 A1 CA2084338 A1 CA 2084338A1
Authority
CA
Canada
Prior art keywords
excitation
adaptive
codevector
codevectors
coder
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
CA2084338A
Other languages
English (en)
Other versions
CA2084338C (fr
Inventor
Toshiki Miyano
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
Individual
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 Individual filed Critical Individual
Publication of CA2084338A1 publication Critical patent/CA2084338A1/fr
Application granted granted Critical
Publication of CA2084338C publication Critical patent/CA2084338C/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
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] 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
    • G10L2019/0001—Codebooks
    • G10L2019/0003—Backward prediction of gain
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0004—Design or structure of the codebook
    • G10L2019/0005—Multi-stage vector quantisation

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)
CA002084338A 1991-12-03 1992-12-02 Methode de codage de paroles et codeur de paroles Expired - Fee Related CA2084338C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP319314/1991 1991-12-03
JP03319314A JP3089769B2 (ja) 1991-12-03 1991-12-03 音声符号化装置

Publications (2)

Publication Number Publication Date
CA2084338A1 true CA2084338A1 (fr) 1993-06-04
CA2084338C CA2084338C (fr) 1997-03-04

Family

ID=18108816

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002084338A Expired - Fee Related CA2084338C (fr) 1991-12-03 1992-12-02 Methode de codage de paroles et codeur de paroles

Country Status (4)

Country Link
EP (1) EP0545386B1 (fr)
JP (1) JP3089769B2 (fr)
CA (1) CA2084338C (fr)
DE (1) DE69228858T2 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5701392A (en) * 1990-02-23 1997-12-23 Universite De Sherbrooke Depth-first algebraic-codebook search for fast coding of speech
US5754976A (en) * 1990-02-23 1998-05-19 Universite De Sherbrooke Algebraic codebook with signal-selected pulse amplitude/position combinations for fast coding of speech
US5717824A (en) * 1992-08-07 1998-02-10 Pacific Communication Sciences, Inc. Adaptive speech coder having code excited linear predictor with multiple codebook searches
JP2800618B2 (ja) * 1993-02-09 1998-09-21 日本電気株式会社 音声パラメータ符号化方式
DE4315315A1 (de) * 1993-05-07 1994-11-10 Ant Nachrichtentech Verfahren zur Vektorquantisierung insbesondere von Sprachsignalen
JP2591430B2 (ja) * 1993-06-30 1997-03-19 日本電気株式会社 ベクトル量子化装置
JPH08263099A (ja) * 1995-03-23 1996-10-11 Toshiba Corp 符号化装置
JP3616432B2 (ja) * 1995-07-27 2005-02-02 日本電気株式会社 音声符号化装置
WO1998004046A2 (fr) * 1996-07-17 1998-01-29 Universite De Sherbrooke Codage avance de dtmf et d'autres tonalites de signalisation
KR100351484B1 (ko) * 1998-06-09 2002-09-05 마츠시타 덴끼 산교 가부시키가이샤 음성 부호화 장치, 음성 복호화 장치, 음성 부호화 방법 및 기록 매체
JP3541680B2 (ja) 1998-06-15 2004-07-14 日本電気株式会社 音声音楽信号の符号化装置および復号装置
DE19845888A1 (de) 1998-10-06 2000-05-11 Bosch Gmbh Robert Verfahren zur Codierung oder Decodierung von Sprachsignalabtastwerten sowie Coder bzw. Decoder
CA2252170A1 (fr) 1998-10-27 2000-04-27 Bruno Bessette Methode et dispositif pour le codage de haute qualite de la parole fonctionnant sur une bande large et de signaux audio
WO2009090876A1 (fr) * 2008-01-16 2009-07-23 Panasonic Corporation Quantificateur vectoriel, quantificateur vectoriel inverse, et procédés à cet effet
KR101290997B1 (ko) 2012-03-26 2013-07-30 세종대학교산학협력단 적응형 코드벡터를 이용한 코드북 기반 음성 향상 방법 및 그 장치

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5208862A (en) * 1990-02-22 1993-05-04 Nec Corporation Speech coder
JP2626223B2 (ja) * 1990-09-26 1997-07-02 日本電気株式会社 音声符号化装置

Also Published As

Publication number Publication date
CA2084338C (fr) 1997-03-04
JP3089769B2 (ja) 2000-09-18
EP0545386A2 (fr) 1993-06-09
EP0545386A3 (en) 1993-08-18
EP0545386B1 (fr) 1999-04-07
DE69228858T2 (de) 1999-08-19
JPH05216500A (ja) 1993-08-27
DE69228858D1 (de) 1999-05-12

Similar Documents

Publication Publication Date Title
CA2084338A1 (fr) Methode de codage de paroles et codeur de paroles
EP0766232B1 (fr) Dispositif de codage de la parole
US7546239B2 (en) Speech coder and speech decoder
CA2061832A1 (fr) Methode et appareil de codage de parametres vocaux
EP1052620B1 (fr) Procede de codage et de decodage sonore et dispositif de codage et de decodage correspondant
US6865530B2 (en) LPAS speech coder using vector quantized, multi-codebook, multi-tap pitch predictor and optimized ternary source excitation codebook derivation
CA2666546A1 (fr) Procede et dispositif pour coder les trames de transition dans des signaux de discours
CA2061803A1 (fr) Methode et systeme de codage de paroles
WO1995028824A3 (fr) Procede de codage de signaux de parole
JPS6440899A (en) Cord excitation linearity prediction vocoder using false search
EP1094447A3 (fr) Procédé de production d'une table de codes de quantification vectorielle
EP0773533B1 (fr) Méthode pour synthétiser un bloc de signaux de paroles dans un codeur CELP
EP0596847A3 (fr) Dispositif adaptatif pour améliorer les impulsions de fréquences fondamentales et méthode d'utilisation dans une boucle de recherche CELP.
US6148282A (en) Multimodal code-excited linear prediction (CELP) coder and method using peakiness measure
US5598504A (en) Speech coding system to reduce distortion through signal overlap
CA2231925C (fr) Methode de codage de la parole
EP0834863A2 (fr) Codeur de la parole à faible débit binaire
US6094630A (en) Sequential searching speech coding device
CA2110645A1 (fr) Methode et dispositif utilisant les techniques d'analyse par synthese pour quantifier les gains d'excitation dans les codeurs de paroles
CA2090205A1 (fr) Systeme de codage de paroles
US5774840A (en) Speech coder using a non-uniform pulse type sparse excitation codebook
EP0852373B1 (fr) Synthétiseur de parole utilisant une structure de décodeur CELP
CA2344302A1 (fr) Procede de codage predictif lineaire a analyse/synthese, et codeur associe
CA2239672A1 (fr) Codeur de signaux vocaux produisant une qualite elevee avec un faible debit binaire
Akamine et al. CELP coding with an adaptive density pulse excitation model

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed