JPH05507796A - 音声の低スループット符号化の方法と装置 - Google Patents

音声の低スループット符号化の方法と装置

Info

Publication number
JPH05507796A
JPH05507796A JP91508756A JP50875691A JPH05507796A JP H05507796 A JPH05507796 A JP H05507796A JP 91508756 A JP91508756 A JP 91508756A JP 50875691 A JP50875691 A JP 50875691A JP H05507796 A JPH05507796 A JP H05507796A
Authority
JP
Japan
Prior art keywords
frame
encoding
pitch
frames
signal
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.)
Pending
Application number
JP91508756A
Other languages
English (en)
Japanese (ja)
Inventor
ムイ，ブノワ
ロラン，ピエール・アンドレ
Original Assignee
トムソン―セエスエフ
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 トムソン―セエスエフ filed Critical トムソン―セエスエフ
Publication of JPH05507796A publication Critical patent/JPH05507796A/ja
Pending 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • G10L19/07—Line spectrum pair [LSP] 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)
JP91508756A 1990-04-27 1991-04-19 音声の低スループット符号化の方法と装置 Pending JPH05507796A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9005400 1990-04-27
FR9005400A FR2661541A1 (fr) 1990-04-27 1990-04-27 Procede et dispositif de codage bas debit de la parole.
PCT/FR1991/000329 WO1991017541A1 (fr) 1990-04-27 1991-04-19 Procede et dispositif de codage bas debit de la parole

Publications (1)

Publication Number Publication Date
JPH05507796A true JPH05507796A (ja) 1993-11-04

Family

ID=9396170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP91508756A Pending JPH05507796A (ja) 1990-04-27 1991-04-19 音声の低スループット符号化の方法と装置

Country Status (5)

Country Link
EP (1) EP0454552A3 (de)
JP (1) JPH05507796A (de)
CA (1) CA2079884A1 (de)
FR (1) FR2661541A1 (de)
WO (1) WO1991017541A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2684225A1 (fr) * 1991-11-22 1993-05-28 Thomson Csf Procede de quantification de l'energie du signal de parole dans un vocodeur a tres faible debit.
US5495555A (en) * 1992-06-01 1996-02-27 Hughes Aircraft Company High quality low bit rate celp-based speech codec

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1203906A (en) * 1982-10-21 1986-04-29 Tetsu Taguchi Variable frame length vocoder
US4852179A (en) * 1987-10-05 1989-07-25 Motorola, Inc. Variable frame rate, fixed bit rate vocoding method
FR2654542B1 (fr) * 1989-11-14 1992-01-17 Thomson Csf Procede et dispositif de codage de filtres predicteurs de vocodeurs tres bas debit.

Also Published As

Publication number Publication date
CA2079884A1 (fr) 1991-10-28
FR2661541A1 (fr) 1991-10-31
EP0454552A3 (en) 1992-01-02
EP0454552A2 (de) 1991-10-30
WO1991017541A1 (fr) 1991-11-14

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