CA2090205C - Speech coding system - Google Patents

Speech coding system

Info

Publication number
CA2090205C
CA2090205C CA002090205A CA2090205A CA2090205C CA 2090205 C CA2090205 C CA 2090205C CA 002090205 A CA002090205 A CA 002090205A CA 2090205 A CA2090205 A CA 2090205A CA 2090205 C CA2090205 C CA 2090205C
Authority
CA
Canada
Prior art keywords
speech
vector
adaptive
weighted
weighting
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
CA002090205A
Other languages
English (en)
French (fr)
Other versions
CA2090205A1 (en
Inventor
Masahiro Serizawa
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 CA2090205A1 publication Critical patent/CA2090205A1/en
Application granted granted Critical
Publication of CA2090205C publication Critical patent/CA2090205C/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

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)
CA002090205A 1992-02-24 1993-02-23 Speech coding system Expired - Fee Related CA2090205C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP03588192A JP3248215B2 (ja) 1992-02-24 1992-02-24 音声符号化装置
JP035881/1992 1992-02-24

Publications (2)

Publication Number Publication Date
CA2090205A1 CA2090205A1 (en) 1993-08-25
CA2090205C true CA2090205C (en) 1998-08-04

Family

ID=12454351

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002090205A Expired - Fee Related CA2090205C (en) 1992-02-24 1993-02-23 Speech coding system

Country Status (4)

Country Link
EP (1) EP0557940B1 (enrdf_load_stackoverflow)
JP (1) JP3248215B2 (enrdf_load_stackoverflow)
CA (1) CA2090205C (enrdf_load_stackoverflow)
DE (1) DE69329476T2 (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2591430B2 (ja) * 1993-06-30 1997-03-19 日本電気株式会社 ベクトル量子化装置
EP0949581B1 (en) 1995-05-10 2002-12-18 Nintendo Co., Limited Operating device with analog joystick
CA2205063C (en) 1995-10-09 2003-11-18 Satoshi Nishiumi Three-dimensional image processing system
JP3524247B2 (ja) 1995-10-09 2004-05-10 任天堂株式会社 ゲーム機およびそれを用いたゲーム機システム
JP3544268B2 (ja) 1995-10-09 2004-07-21 任天堂株式会社 三次元画像処理装置およびそれを用いた画像処理方法
US6267673B1 (en) 1996-09-20 2001-07-31 Nintendo Co., Ltd. Video game system with state of next world dependent upon manner of entry from previous world via a portal
US6190257B1 (en) 1995-11-22 2001-02-20 Nintendo Co., Ltd. Systems and method for providing security in a video game system
US6022274A (en) 1995-11-22 2000-02-08 Nintendo Co., Ltd. Video game system using memory module
TW419645B (en) * 1996-05-24 2001-01-21 Koninkl Philips Electronics Nv A method for coding Human speech and an apparatus for reproducing human speech so coded
US6241610B1 (en) 1996-09-20 2001-06-05 Nintendo Co., Ltd. Three-dimensional image processing system having dynamically changing character polygon number
US6139434A (en) 1996-09-24 2000-10-31 Nintendo Co., Ltd. Three-dimensional image processing apparatus with enhanced automatic and user point of view control
JP3655438B2 (ja) 1997-07-17 2005-06-02 任天堂株式会社 ビデオゲームシステム

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0342687B1 (en) * 1988-05-20 1995-04-12 Nec Corporation Coded speech communication system having code books for synthesizing small-amplitude components
US4975956A (en) * 1989-07-26 1990-12-04 Itt Corporation Low-bit-rate speech coder using LPC data reduction processing
US5208862A (en) * 1990-02-22 1993-05-04 Nec Corporation Speech coder
JPH05108096A (ja) * 1991-10-18 1993-04-30 Sanyo Electric Co Ltd ベクトル駆動型音声符号化装置

Also Published As

Publication number Publication date
JPH05232997A (ja) 1993-09-10
EP0557940A3 (enrdf_load_stackoverflow) 1994-03-23
DE69329476D1 (de) 2000-11-02
JP3248215B2 (ja) 2002-01-21
CA2090205A1 (en) 1993-08-25
EP0557940B1 (en) 2000-09-27
EP0557940A2 (en) 1993-09-01
DE69329476T2 (de) 2001-02-08

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