DE69017498D1 - Sprachcodiergerät. - Google Patents

Sprachcodiergerät.

Info

Publication number
DE69017498D1
DE69017498D1 DE69017498T DE69017498T DE69017498D1 DE 69017498 D1 DE69017498 D1 DE 69017498D1 DE 69017498 T DE69017498 T DE 69017498T DE 69017498 T DE69017498 T DE 69017498T DE 69017498 D1 DE69017498 D1 DE 69017498D1
Authority
DE
Germany
Prior art keywords
coding device
speech coding
speech
coding
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
DE69017498T
Other languages
English (en)
Other versions
DE69017498T2 (de
Inventor
Tomohiko Taniguchi
Yoshinori Tanaka
Yasuji Ota
Fumio Amano
Shigeyuki Unagami
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of DE69017498D1 publication Critical patent/DE69017498D1/de
Application granted granted Critical
Publication of DE69017498T2 publication Critical patent/DE69017498T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/038—Vector quantisation, e.g. TwinVQ audio
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3082—Vector coding
DE69017498T 1989-04-28 1990-04-27 Sprachcodiergerät. Expired - Fee Related DE69017498T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1107339A JPH02287399A (ja) 1989-04-28 1989-04-28 ベクトル量子化制御方式

Publications (2)

Publication Number Publication Date
DE69017498D1 true DE69017498D1 (de) 1995-04-13
DE69017498T2 DE69017498T2 (de) 1995-08-17

Family

ID=14456549

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69017498T Expired - Fee Related DE69017498T2 (de) 1989-04-28 1990-04-27 Sprachcodiergerät.

Country Status (5)

Country Link
US (1) US5274741A (de)
EP (1) EP0395076B1 (de)
JP (1) JPH02287399A (de)
CA (1) CA2015274C (de)
DE (1) DE69017498T2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0753841B1 (de) * 1990-11-02 2002-04-10 Nec Corporation Verfahren zur Kodierung eines Sprachparameters mittels Übertragung eines spektralen Parameters mit verringerter Datenrate
US5765127A (en) * 1992-03-18 1998-06-09 Sony Corp High efficiency encoding method
JPH05335967A (ja) * 1992-05-29 1993-12-17 Takeo Miyazawa 音情報圧縮方法及び音情報再生装置
US5621852A (en) * 1993-12-14 1997-04-15 Interdigital Technology Corporation Efficient codebook structure for code excited linear prediction coding
JP3273455B2 (ja) * 1994-10-07 2002-04-08 日本電信電話株式会社 ベクトル量子化方法及びその復号化器
WO1996034383A1 (en) * 1995-04-19 1996-10-31 Motorola Inc. Method and apparatus for low rate coding and decoding
US5508708A (en) * 1995-05-08 1996-04-16 Motorola, Inc. Method and apparatus for location finding in a CDMA system
US5781882A (en) * 1995-09-14 1998-07-14 Motorola, Inc. Very low bit rate voice messaging system using asymmetric voice compression processing
FR2815160B1 (fr) * 2000-10-06 2003-01-17 France Telecom Procede et dispositif de codage d'un signal audiofrequence
CN105324812A (zh) * 2013-06-17 2016-02-10 杜比实验室特许公司 不同信号维度的参数矢量的多级量化

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5941596B2 (ja) * 1977-05-27 1984-10-08 日本電気株式会社 適応形線形予測装置
JPS6011360B2 (ja) * 1981-12-15 1985-03-25 ケイディディ株式会社 音声符号化方式
GB2117608B (en) * 1982-02-17 1986-07-30 Gen Electric Co Plc Speech signal transmission system
JPS58204632A (ja) * 1982-05-24 1983-11-29 Nec Corp 音声符号化方法とその装置
US4731846A (en) * 1983-04-13 1988-03-15 Texas Instruments Incorporated Voice messaging system with pitch tracking based on adaptively filtered LPC residual signal
JPS60237500A (ja) * 1984-05-11 1985-11-26 日本電気株式会社 マルチパルス型ボコ−ダ
JPS6162100A (ja) * 1984-09-04 1986-03-29 日本電気株式会社 マルチパルス型符号化復号化装置
NL8500843A (nl) * 1985-03-22 1986-10-16 Koninkl Philips Electronics Nv Multipuls-excitatie lineair-predictieve spraakcoder.
JPH0634197B2 (ja) * 1985-12-04 1994-05-02 日本電気株式会社 音声符号化方法とその装置
US4868867A (en) * 1987-04-06 1989-09-19 Voicecraft Inc. Vector excitation speech or audio coder for transmission or storage
US4817157A (en) * 1988-01-07 1989-03-28 Motorola, Inc. Digital speech coder having improved vector excitation source
JPH0332228A (ja) * 1989-06-29 1991-02-12 Fujitsu Ltd ゲイン―シェイプ・ベクトル量子化方式

Also Published As

Publication number Publication date
CA2015274C (en) 1994-07-19
CA2015274A1 (en) 1990-10-28
EP0395076A2 (de) 1990-10-31
US5274741A (en) 1993-12-28
EP0395076B1 (de) 1995-03-08
DE69017498T2 (de) 1995-08-17
JPH02287399A (ja) 1990-11-27
EP0395076A3 (de) 1991-01-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee