CA2355973C - Generatrice a traitement vectoriel excite, codeur et decodeur de la voix - Google Patents

Generatrice a traitement vectoriel excite, codeur et decodeur de la voix Download PDF

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Publication number
CA2355973C
CA2355973C CA002355973A CA2355973A CA2355973C CA 2355973 C CA2355973 C CA 2355973C CA 002355973 A CA002355973 A CA 002355973A CA 2355973 A CA2355973 A CA 2355973A CA 2355973 C CA2355973 C CA 2355973C
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CA
Canada
Prior art keywords
vector
fixed
section
generator
random
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 - Lifetime
Application number
CA002355973A
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English (en)
Other versions
CA2355973A1 (fr
Inventor
Kazutoshi Yasunaga
Toshiyuki Morii
Taisuke Watanabe
Hiroyuki Ehara
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.)
Godo Kaisha IP Bridge 1
Original Assignee
Matsushita Electric Industrial Co Ltd
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
Priority claimed from JP29473896A external-priority patent/JP4003240B2/ja
Priority claimed from JP31032496A external-priority patent/JP4006770B2/ja
Priority claimed from JP03458297A external-priority patent/JP3174742B2/ja
Priority claimed from JP03458397A external-priority patent/JP3700310B2/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority claimed from CA002242345A external-priority patent/CA2242345C/fr
Publication of CA2355973A1 publication Critical patent/CA2355973A1/fr
Application granted granted Critical
Publication of CA2355973C publication Critical patent/CA2355973C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

Une section de lecture aléatoire de vecteur de code et un livre de code aléatoire d'un codeur/décodeur de voix conventionnel de type CELP sont remplacés respectivement par un oscillateur pour la sortie de différents flux vectoriels conformément aux valeurs de départ d'entrée, et une section de stockage des valeurs de départ pour stocker une pluralité de valeurs de départ. Cela rend inutile de stocker des vecteurs fixes comme dans un livre de codes fixe (ROM), réduisant ainsi considérablement la capacité de la mémoire.
CA002355973A 1996-11-07 1997-11-06 Generatrice a traitement vectoriel excite, codeur et decodeur de la voix Expired - Lifetime CA2355973C (fr)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP29473896A JP4003240B2 (ja) 1996-11-07 1996-11-07 音声符号化装置及び音声復号化装置
JP8-294738 1996-11-07
JP31032496A JP4006770B2 (ja) 1996-11-21 1996-11-21 ノイズ推定装置、ノイズ削減装置、ノイズ推定方法、及びノイズ削減方法
JP8-310324 1996-11-21
JP03458297A JP3174742B2 (ja) 1997-02-19 1997-02-19 Ｃｅｌｐ型音声復号化装置及びｃｅｌｐ型音声復号化方法
JP03458397A JP3700310B2 (ja) 1997-02-19 1997-02-19 ベクトル量子化装置及びベクトル量子化方法
JP9-34583 1997-02-19
JP9-34582 1997-02-19
CA002242345A CA2242345C (fr) 1996-11-07 1997-11-06 Generatrice a traitement vectoriel excite, voix coder/decoder

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002242345A Division CA2242345C (fr) 1996-11-07 1997-11-06 Generatrice a traitement vectoriel excite, voix coder/decoder

Publications (2)

Publication Number Publication Date
CA2355973A1 CA2355973A1 (fr) 1998-05-14
CA2355973C true CA2355973C (fr) 2003-07-22

Family

ID=27508655

Family Applications (6)

Application Number Title Priority Date Filing Date
CA002355973A Expired - Lifetime CA2355973C (fr) 1996-11-07 1997-11-06 Generatrice a traitement vectoriel excite, codeur et decodeur de la voix
CA002356041A Expired - Lifetime CA2356041C (fr) 1996-11-07 1997-11-06 Generatrice a traitement vectoriel excite, voix coder/decoder
CA002356051A Expired - Lifetime CA2356051C (fr) 1996-11-07 1997-11-06 Generatrice a traitement vectoriel excite, codeur/decodeur de la voix
CA002355978A Expired - Lifetime CA2355978C (fr) 1996-11-07 1997-11-06 Generatrice a traitement vectoriel excite, voix coder/decoder
CA002355975A Expired - Lifetime CA2355975C (fr) 1996-11-07 1997-11-06 Generatrice a traitement vectoriel excite, voix coder/decoder
CA002356049A Expired - Lifetime CA2356049C (fr) 1996-11-07 1997-11-06 Generatrice a traitement vectoriel excite, voix coder/decoder

Family Applications After (5)

Application Number Title Priority Date Filing Date
CA002356041A Expired - Lifetime CA2356041C (fr) 1996-11-07 1997-11-06 Generatrice a traitement vectoriel excite, voix coder/decoder
CA002356051A Expired - Lifetime CA2356051C (fr) 1996-11-07 1997-11-06 Generatrice a traitement vectoriel excite, codeur/decodeur de la voix
CA002355978A Expired - Lifetime CA2355978C (fr) 1996-11-07 1997-11-06 Generatrice a traitement vectoriel excite, voix coder/decoder
CA002355975A Expired - Lifetime CA2355975C (fr) 1996-11-07 1997-11-06 Generatrice a traitement vectoriel excite, voix coder/decoder
CA002356049A Expired - Lifetime CA2356049C (fr) 1996-11-07 1997-11-06 Generatrice a traitement vectoriel excite, voix coder/decoder

Country Status (1)

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CA (6) CA2355973C (fr)

Also Published As

Publication number Publication date
CA2356041A1 (fr) 1998-05-14
CA2355975A1 (fr) 1998-05-14
CA2356049A1 (fr) 1998-05-14
CA2355978C (fr) 2009-01-20
CA2356049C (fr) 2003-07-15
CA2356051A1 (fr) 1998-05-14
CA2355978A1 (fr) 1998-05-14
CA2356051C (fr) 2003-07-29
CA2355973A1 (fr) 1998-05-14
CA2356041C (fr) 2003-07-29
CA2355975C (fr) 2003-09-09

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