DE3670712D1 - Verfahren zur sprachcodierung mit niedriger bitrate unter verwendung eines mehrimpulsanregungssignals. - Google Patents

Verfahren zur sprachcodierung mit niedriger bitrate unter verwendung eines mehrimpulsanregungssignals.

Info

Publication number
DE3670712D1
DE3670712D1 DE8686103770T DE3670712T DE3670712D1 DE 3670712 D1 DE3670712 D1 DE 3670712D1 DE 8686103770 T DE8686103770 T DE 8686103770T DE 3670712 T DE3670712 T DE 3670712T DE 3670712 D1 DE3670712 D1 DE 3670712D1
Authority
DE
Germany
Prior art keywords
bit rate
excitation signal
coding method
low bit
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.)
Expired - Fee Related
Application number
DE8686103770T
Other languages
English (en)
Inventor
Jean-Paul Lefevre
Olivier Passien
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
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 Alcatel CIT SA filed Critical Alcatel CIT SA
Application granted granted Critical
Publication of DE3670712D1 publication Critical patent/DE3670712D1/de
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
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation

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)
DE8686103770T 1985-03-22 1986-03-20 Verfahren zur sprachcodierung mit niedriger bitrate unter verwendung eines mehrimpulsanregungssignals. Expired - Fee Related DE3670712D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8504304A FR2579356B1 (fr) 1985-03-22 1985-03-22 Procede de codage a faible debit de la parole a signal multi-impulsionnel d'excitation

Publications (1)

Publication Number Publication Date
DE3670712D1 true DE3670712D1 (de) 1990-05-31

Family

ID=9317484

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686103770T Expired - Fee Related DE3670712D1 (de) 1985-03-22 1986-03-20 Verfahren zur sprachcodierung mit niedriger bitrate unter verwendung eines mehrimpulsanregungssignals.

Country Status (6)

Country Link
US (1) US4847905A (de)
EP (1) EP0195441B1 (de)
CA (1) CA1241117A (de)
DE (1) DE3670712D1 (de)
DK (1) DK126986A (de)
FR (1) FR2579356B1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE35057E (en) * 1987-08-28 1995-10-10 British Telecommunications Public Limited Company Speech coding using sparse vector codebook and cyclic shift techniques
CA1337217C (en) * 1987-08-28 1995-10-03 Daniel Kenneth Freeman Speech coding
SE463691B (sv) * 1989-05-11 1991-01-07 Ericsson Telefon Ab L M Foerfarande att utplacera excitationspulser foer en lineaerprediktiv kodare (lpc) som arbetar enligt multipulsprincipen
JP2940005B2 (ja) * 1989-07-20 1999-08-25 日本電気株式会社 音声符号化装置
US5673364A (en) * 1993-12-01 1997-09-30 The Dsp Group Ltd. System and method for compression and decompression of audio signals
AU696092B2 (en) * 1995-01-12 1998-09-03 Digital Voice Systems, Inc. Estimation of excitation parameters
US6012025A (en) * 1998-01-28 2000-01-04 Nokia Mobile Phones Limited Audio coding method and apparatus using backward adaptive prediction
US5963897A (en) * 1998-02-27 1999-10-05 Lernout & Hauspie Speech Products N.V. Apparatus and method for hybrid excited linear prediction speech encoding
WO2000016501A1 (en) * 1998-09-11 2000-03-23 Motorola Inc. Method and apparatus for coding an information signal
EP2009623A1 (de) * 2007-06-27 2008-12-31 Nokia Siemens Networks Oy Sprachkodierung
US8036886B2 (en) * 2006-12-22 2011-10-11 Digital Voice Systems, Inc. Estimation of pulsed speech model parameters
US11270714B2 (en) 2020-01-08 2022-03-08 Digital Voice Systems, Inc. Speech coding using time-varying interpolation
GB2596821A (en) 2020-07-07 2022-01-12 Validsoft Ltd Computer-generated speech detection
US11990144B2 (en) 2021-07-28 2024-05-21 Digital Voice Systems, Inc. Reducing perceived effects of non-voice data in digital speech

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133976A (en) * 1978-04-07 1979-01-09 Bell Telephone Laboratories, Incorporated Predictive speech signal coding with reduced noise effects
US4472832A (en) * 1981-12-01 1984-09-18 At&T Bell Laboratories Digital speech coder
US4720861A (en) * 1985-12-24 1988-01-19 Itt Defense Communications A Division Of Itt Corporation Digital speech coding circuit

Also Published As

Publication number Publication date
EP0195441B1 (de) 1990-04-25
FR2579356A1 (fr) 1986-09-26
CA1241117A (fr) 1988-08-23
DK126986D0 (da) 1986-03-19
DK126986A (da) 1986-09-23
US4847905A (en) 1989-07-11
EP0195441A1 (de) 1986-09-24
FR2579356B1 (fr) 1987-05-07

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Legal Events

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