EP0545386A3 - Method for speech coding and voice-coder - Google Patents

Method for speech coding and voice-coder Download PDF

Info

Publication number
EP0545386A3
EP0545386A3 EP19920120573 EP92120573A EP0545386A3 EP 0545386 A3 EP0545386 A3 EP 0545386A3 EP 19920120573 EP19920120573 EP 19920120573 EP 92120573 A EP92120573 A EP 92120573A EP 0545386 A3 EP0545386 A3 EP 0545386A3
Authority
EP
European Patent Office
Prior art keywords
coder
voice
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.)
Granted
Application number
EP19920120573
Other versions
EP0545386B1 (en
EP0545386A2 (en
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
NEC Corp
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 NEC Corp filed Critical NEC Corp
Publication of EP0545386A2 publication Critical patent/EP0545386A2/en
Publication of EP0545386A3 publication Critical patent/EP0545386A3/en
Application granted granted Critical
Publication of EP0545386B1 publication Critical patent/EP0545386B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
EP92120573A 1991-12-03 1992-12-02 Method for speech coding and voice-coder Expired - Lifetime EP0545386B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP03319314A JP3089769B2 (en) 1991-12-03 1991-12-03 Audio coding device
JP319314/91 1991-12-03

Publications (3)

Publication Number Publication Date
EP0545386A2 EP0545386A2 (en) 1993-06-09
EP0545386A3 true EP0545386A3 (en) 1993-08-18
EP0545386B1 EP0545386B1 (en) 1999-04-07

Family

ID=18108816

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92120573A Expired - Lifetime EP0545386B1 (en) 1991-12-03 1992-12-02 Method for speech coding and voice-coder

Country Status (4)

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

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 (en) * 1993-02-09 1998-09-21 日本電気株式会社 Voice parameter coding method
DE4315315A1 (en) * 1993-05-07 1994-11-10 Ant Nachrichtentech Method for vector quantization, especially of speech signals
JP2591430B2 (en) * 1993-06-30 1997-03-19 日本電気株式会社 Vector quantizer
JPH08263099A (en) * 1995-03-23 1996-10-11 Toshiba Corp Encoder
JP3616432B2 (en) * 1995-07-27 2005-02-02 日本電気株式会社 Speech encoding device
WO1998004046A2 (en) * 1996-07-17 1998-01-29 Universite De Sherbrooke Enhanced encoding of dtmf and other signalling tones
CN1167048C (en) * 1998-06-09 2004-09-15 松下电器产业株式会社 Speech coding apparatus and speech decoding apparatus
JP3541680B2 (en) 1998-06-15 2004-07-14 日本電気株式会社 Audio music signal encoding device and decoding device
DE19845888A1 (en) 1998-10-06 2000-05-11 Bosch Gmbh Robert Method for coding or decoding speech signal samples as well as encoders or decoders
CA2252170A1 (en) 1998-10-27 2000-04-27 Bruno Bessette A method and device for high quality coding of wideband speech and audio signals
US8306007B2 (en) * 2008-01-16 2012-11-06 Panasonic Corporation Vector quantizer, vector inverse quantizer, and methods therefor
KR101290997B1 (en) 2012-03-26 2013-07-30 세종대학교산학협력단 A codebook-based speech enhancement method using adaptive codevector and apparatus thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0443548A2 (en) * 1990-02-22 1991-08-28 Nec Corporation Speech coder
EP0477960A2 (en) * 1990-09-26 1992-04-01 Nec Corporation Linear prediction speech coding with high-frequency preemphasis

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0443548A2 (en) * 1990-02-22 1991-08-28 Nec Corporation Speech coder
EP0477960A2 (en) * 1990-09-26 1992-04-01 Nec Corporation Linear prediction speech coding with high-frequency preemphasis

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS vol. 37, no. 4, November 1991, NEW YORK US pages 772 - 782 SUNWOO , PARK 'Real time implementation of the VSELP on a 16-bit DSP chip' *
INTERNATIONAL CONFERENCE ON ACOUSTICS SPEECH AND SIGNAL PROCESSING vol. 1, 23 May 1989, GLASGOW SCOTLAND U.K. pages 65 - 68 JAYANT, CHEN 'Speech coding with time varying bit allocations to excitation and LPC parameters' *
INTERNATIONAL CONFERENCE ON ACOUSTICS SPEECH AND SIGNAL PROCESSING vol. 1, 3 April 1990, ALBUQUERQUE NEW MEXICO USA pages 461 - 464 GERSON, JASIUK 'Vector sum excited linear prediction speech coding at 8Kbps' *
NEC RESEARCH AND DEVELOPMENT vol. 32, no. 4, October 1991, TOKYO JAPAN pages 549 - 555 UNNO ET AL 'Learned codebook excited linear predictive speech codec for digital cellular system' *

Also Published As

Publication number Publication date
JPH05216500A (en) 1993-08-27
EP0545386B1 (en) 1999-04-07
DE69228858T2 (en) 1999-08-19
DE69228858D1 (en) 1999-05-12
CA2084338C (en) 1997-03-04
EP0545386A2 (en) 1993-06-09
JP3089769B2 (en) 2000-09-18
CA2084338A1 (en) 1993-06-04

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