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
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
US5701392A (en) * 1990-02-23 1997-12-23 Universite De Sherbrooke Depth-first algebraic-codebook search 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
AU3534597A (en) * 1996-07-17 1998-02-10 Universite De Sherbrooke Enhanced encoding of dtmf and other signalling tones
ATE520122T1 (de) * 1998-06-09 2011-08-15 Panasonic Corp Sprachkodierung und sprachdekodierung
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
ES2639572T3 (es) * 2008-01-16 2017-10-27 Iii Holdings 12, Llc Cuantificador vectorial, cuantificador inverso vectorial y procedimientos para los mismos
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
EP0443548B1 (fr) * 1990-02-22 2003-07-23 Nec Corporation Codeur de parole
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
EP0545386A3 (en) 1993-08-18
DE69228858T2 (de) 1999-08-19
EP0545386A2 (fr) 1993-06-09
JP3089769B2 (ja) 2000-09-18
EP0545386B1 (fr) 1999-04-07
DE69228858D1 (de) 1999-05-12
JPH05216500A (ja) 1993-08-27
CA2084338C (fr) 1997-03-04

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
CA2061832A1 (fr) Methode et appareil de codage de parametres vocaux
US7747441B2 (en) Method and apparatus for speech decoding based on a parameter of the adaptive code vector
US6865530B2 (en) LPAS speech coder using vector quantized, multi-codebook, multi-tap pitch predictor and optimized ternary source excitation codebook derivation
US20090138261A1 (en) Speech coder using an orthogonal search and an orthogonal search method
CA2061803A1 (fr) Methode et systeme de codage de paroles
CA2113928A1 (fr) Codeur de paroles
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
US6148282A (en) Multimodal code-excited linear prediction (CELP) coder and method using peakiness measure
NO933940D0 (no) Fremgangsmaate og anordning for koding av et inngangssignal ved bruk av en celp soekesloeyfe
CA2209384A1 (fr) Procede de codage de parole a analyse par synthese
US5598504A (en) Speech coding system to reduce distortion through signal overlap
US5970444A (en) Speech coding method
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
CA2152513A1 (fr) Methode de codage de signaux d'excitation et dispositif de codage de haute qualite
CA2130877A1 (fr) Systeme de codage de hauteurs de sons vocaux
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
AU682505B2 (en) Vector coding process, especially for voice signals

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed