JPS61121616A - ベクトル量子化法によつて音声信号を符号化、復号化するための方法と装置 - Google Patents

ベクトル量子化法によつて音声信号を符号化、復号化するための方法と装置

Info

Publication number
JPS61121616A
JPS61121616A JP60250992A JP25099285A JPS61121616A JP S61121616 A JPS61121616 A JP S61121616A JP 60250992 A JP60250992 A JP 60250992A JP 25099285 A JP25099285 A JP 25099285A JP S61121616 A JPS61121616 A JP S61121616A
Authority
JP
Japan
Prior art keywords
vector
audio signal
residual
index
codebook
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
JP60250992A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0563000B2 (enExample
Inventor
マウリツイオ・コツペリ
ダニエレ・セレノ
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.)
TIM SpA
Original Assignee
CSELT Centro Studi e Laboratori Telecomunicazioni SpA
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 CSELT Centro Studi e Laboratori Telecomunicazioni SpA filed Critical CSELT Centro Studi e Laboratori Telecomunicazioni SpA
Publication of JPS61121616A publication Critical patent/JPS61121616A/ja
Publication of JPH0563000B2 publication Critical patent/JPH0563000B2/ja
Granted 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
    • G10L19/02—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 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
JP60250992A 1984-11-13 1985-11-11 ベクトル量子化法によつて音声信号を符号化、復号化するための方法と装置 Granted JPS61121616A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT68134-A/84 1984-11-13
IT68134/84A IT1180126B (it) 1984-11-13 1984-11-13 Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante tecniche di quantizzazione vettoriale

Publications (2)

Publication Number Publication Date
JPS61121616A true JPS61121616A (ja) 1986-06-09
JPH0563000B2 JPH0563000B2 (enExample) 1993-09-09

Family

ID=11308080

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60250992A Granted JPS61121616A (ja) 1984-11-13 1985-11-11 ベクトル量子化法によつて音声信号を符号化、復号化するための方法と装置

Country Status (6)

Country Link
US (1) US4791670A (enExample)
EP (1) EP0186763B1 (enExample)
JP (1) JPS61121616A (enExample)
CA (1) CA1241116A (enExample)
DE (2) DE186763T1 (enExample)
IT (1) IT1180126B (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63113600A (ja) * 1986-10-21 1988-05-18 クセルト　セントロ・ステユデイ・エ・ラボラトリ・テレコミニカチオーニ・エツセ・ピー・アー 音声信号の符号化及び復号化のための方法及び装置
JPH0341500A (ja) * 1989-06-07 1991-02-21 Internatl Business Mach Corp <Ibm> 低遅延低ビツトレート音声コーダ

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01238229A (ja) * 1988-03-17 1989-09-22 Sony Corp デイジタル信号処理装置
US5293449A (en) * 1990-11-23 1994-03-08 Comsat Corporation Analysis-by-synthesis 2,4 kbps linear predictive speech codec
JPH04264597A (ja) * 1991-02-20 1992-09-21 Fujitsu Ltd 音声符号化装置および音声復号装置
US5265190A (en) * 1991-05-31 1993-11-23 Motorola, Inc. CELP vocoder with efficient adaptive codebook search
US5255339A (en) * 1991-07-19 1993-10-19 Motorola, Inc. Low bit rate vocoder means and method
CA2078927C (en) * 1991-09-25 1997-01-28 Katsushi Seza Code-book driven vocoder device with voice source generator
FR2690551B1 (fr) * 1991-10-15 1994-06-03 Thomson Csf Procede de quantification d'un filtre predicteur pour vocodeur a tres faible debit.
US5357567A (en) * 1992-08-14 1994-10-18 Motorola, Inc. Method and apparatus for volume switched gain control
JP2746033B2 (ja) * 1992-12-24 1998-04-28 日本電気株式会社 音声復号化装置
JP3321976B2 (ja) * 1994-04-01 2002-09-09 富士通株式会社 信号処理装置および信号処理方法
JPH08179796A (ja) * 1994-12-21 1996-07-12 Sony Corp 音声符号化方法
GB2300548B (en) * 1995-05-02 2000-01-12 Motorola Ltd Method for a communications system
US5832131A (en) * 1995-05-03 1998-11-03 National Semiconductor Corporation Hashing-based vector quantization
FR2734389B1 (fr) * 1995-05-17 1997-07-18 Proust Stephane Procede d'adaptation du niveau de masquage du bruit dans un codeur de parole a analyse par synthese utilisant un filtre de ponderation perceptuelle a court terme
FR2741744B1 (fr) * 1995-11-23 1998-01-02 Thomson Csf Procede et dispositif d'evaluation de l'energie du signal de parole par sous bande pour vocodeur bas debits
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
US6356213B1 (en) * 2000-05-31 2002-03-12 Lucent Technologies Inc. System and method for prediction-based lossless encoding
US20070067166A1 (en) * 2003-09-17 2007-03-22 Xingde Pan Method and device of multi-resolution vector quantilization for audio encoding and decoding
EP4253088B1 (en) 2022-03-28 2025-07-02 Sumitomo Rubber Industries, Ltd. Motorcycle tire

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5193105A (enExample) * 1975-02-13 1976-08-16
JPS5651637A (en) * 1979-10-04 1981-05-09 Toray Eng Co Ltd Gear inspecting device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60116000A (ja) * 1983-11-28 1985-06-22 ケイディディ株式会社 音声符号化装置
US4670851A (en) * 1984-01-09 1987-06-02 Mitsubishi Denki Kabushiki Kaisha Vector quantizer
US4701954A (en) * 1984-03-16 1987-10-20 American Telephone And Telegraph Company, At&T Bell Laboratories Multipulse LPC speech processing arrangement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5193105A (enExample) * 1975-02-13 1976-08-16
JPS5651637A (en) * 1979-10-04 1981-05-09 Toray Eng Co Ltd Gear inspecting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63113600A (ja) * 1986-10-21 1988-05-18 クセルト　セントロ・ステユデイ・エ・ラボラトリ・テレコミニカチオーニ・エツセ・ピー・アー 音声信号の符号化及び復号化のための方法及び装置
JPH0341500A (ja) * 1989-06-07 1991-02-21 Internatl Business Mach Corp <Ibm> 低遅延低ビツトレート音声コーダ

Also Published As

Publication number Publication date
IT8468134A0 (it) 1984-11-13
EP0186763B1 (en) 1989-03-29
IT1180126B (it) 1987-09-23
IT8468134A1 (it) 1986-05-13
CA1241116A (en) 1988-08-23
US4791670A (en) 1988-12-13
JPH0563000B2 (enExample) 1993-09-09
EP0186763A1 (en) 1986-07-09
DE186763T1 (de) 1986-12-18
DE3569165D1 (en) 1989-05-03

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