DE69228858D1 - Speech coding method and speech encoder - Google Patents

Speech coding method and speech encoder

Info

Publication number
DE69228858D1
DE69228858D1 DE69228858T DE69228858T DE69228858D1 DE 69228858 D1 DE69228858 D1 DE 69228858D1 DE 69228858 T DE69228858 T DE 69228858T DE 69228858 T DE69228858 T DE 69228858T DE 69228858 D1 DE69228858 D1 DE 69228858D1
Authority
DE
Germany
Prior art keywords
speech
coding method
encoder
speech coding
speech encoder
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
DE69228858T
Other languages
German (de)
Other versions
DE69228858T2 (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 DE69228858D1 publication Critical patent/DE69228858D1/en
Application granted granted Critical
Publication of DE69228858T2 publication Critical patent/DE69228858T2/en
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)
DE69228858T 1991-12-03 1992-12-02 Speech coding method and speech encoder Expired - Fee Related DE69228858T2 (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
DE69228858D1 true DE69228858D1 (en) 1999-05-12
DE69228858T2 DE69228858T2 (en) 1999-08-19

Family

ID=18108816

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69228858T Expired - Fee Related DE69228858T2 (en) 1991-12-03 1992-12-02 Speech coding method and speech encoder

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
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 (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
CA2300077C (en) * 1998-06-09 2007-09-04 Matsushita Electric Industrial Co., Ltd. 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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0443548B1 (en) * 1990-02-22 2003-07-23 Nec Corporation Speech coder
JP2626223B2 (en) * 1990-09-26 1997-07-02 日本電気株式会社 Audio coding device

Also Published As

Publication number Publication date
CA2084338C (en) 1997-03-04
JPH05216500A (en) 1993-08-27
EP0545386B1 (en) 1999-04-07
CA2084338A1 (en) 1993-06-04
EP0545386A2 (en) 1993-06-09
JP3089769B2 (en) 2000-09-18
DE69228858T2 (en) 1999-08-19
EP0545386A3 (en) 1993-08-18

Similar Documents

Publication Publication Date Title
DE69229620D1 (en) Speech coding and decoding system
DE69232904D1 (en) Speech coder / decoder and coding / decoding method
DE69228641D1 (en) ENCODER AND DECODER
DE69023402D1 (en) Speech coding and decoding methods.
DE69330234D1 (en) Highly efficient device for coding and / or decoding
DE69324960D1 (en) Coding and decoding
DE69032551D1 (en) Speech coding device
EP0514912A3 (en) Speech coding and decoding methods
DE69225941D1 (en) Image encoding and / or decoding
DE69332180D1 (en) Interframe coding system and method
DE69828725D1 (en) Device for speech coding and decoding
DE69324213D1 (en) Speech coders and speech coding methods
DE69005010D1 (en) Device for speech coding and decoding.
DE69229695D1 (en) Image coding system and image coding method
DE69228858D1 (en) Speech coding method and speech encoder
DE69712566D1 (en) Image coding method and image encoder
DE69423072D1 (en) ENCODER AND METHOD FOR ENCODING
DE69207650D1 (en) Tail and method of making the same
DE69425179D1 (en) Coding device and method
DE69121411D1 (en) METHOD AND DEVICE FOR CODING ANALOG SIGNALS
DE69420183D1 (en) Method and device for speech coding and speech decoding and speech processing
DE68925516D1 (en) Effective coding process and associated decoding process
DE69720855D1 (en) Device for coding and decoding speech
DE69125424D1 (en) Device for variable length coding and device for variable length decoding
DE69125315D1 (en) Coding method and coding device

Legal Events

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