EP0333425A3 - Sprachcodierung - Google Patents

Sprachcodierung Download PDF

Info

Publication number
EP0333425A3
EP0333425A3 EP89302481A EP89302481A EP0333425A3 EP 0333425 A3 EP0333425 A3 EP 0333425A3 EP 89302481 A EP89302481 A EP 89302481A EP 89302481 A EP89302481 A EP 89302481A EP 0333425 A3 EP0333425 A3 EP 0333425A3
Authority
EP
European Patent Office
Prior art keywords
sequence
lpc
output
telecommunications link
vector quantizer
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.)
Ceased
Application number
EP89302481A
Other languages
English (en)
French (fr)
Other versions
EP0333425A2 (de
Inventor
Barry G. Dept. of Electronic & Elect. Eng. Evans
Ahmet M. Dept. of Electronic & Elect. Eng. Kondoz
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.)
University of Surrey
Original Assignee
University of Surrey
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 University of Surrey filed Critical University of Surrey
Publication of EP0333425A2 publication Critical patent/EP0333425A2/de
Publication of EP0333425A3 publication Critical patent/EP0333425A3/de
Ceased 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (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)
  • Spectroscopy & Molecular Physics (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
EP89302481A 1988-03-16 1989-03-14 Sprachcodierung Ceased EP0333425A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8806185A GB8806185D0 (en) 1988-03-16 1988-03-16 Speech coding
GB8806185 1988-03-16

Publications (2)

Publication Number Publication Date
EP0333425A2 EP0333425A2 (de) 1989-09-20
EP0333425A3 true EP0333425A3 (de) 1990-02-07

Family

ID=10633500

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89302481A Ceased EP0333425A3 (de) 1988-03-16 1989-03-14 Sprachcodierung

Country Status (2)

Country Link
EP (1) EP0333425A3 (de)
GB (1) GB8806185D0 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3254687B2 (ja) * 1991-02-26 2002-02-12 日本電気株式会社 音声符号化方式
ES2042410B1 (es) * 1992-04-15 1997-01-01 Control Sys S A Metodo de codificacion y codificador de voz para equipos y sistemas de comunicacion.
GB9512284D0 (en) * 1995-06-16 1995-08-16 Nokia Mobile Phones Ltd Speech Synthesiser

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125423A1 (de) * 1983-04-13 1984-11-21 Texas Instruments Incorporated Vocoder unter Anwendung von Grundfrequenzermittlung auf gefiltertem LPC-Differenzsignal beruhend

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125423A1 (de) * 1983-04-13 1984-11-21 Texas Instruments Incorporated Vocoder unter Anwendung von Grundfrequenzermittlung auf gefiltertem LPC-Differenzsignal beruhend

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ELECTRONICS LETTERS, vol. 23, no. 24, 19th November 1987, pages 1286-1288, Hitchin, GB; A. KONDOZ et al.: "Vector-quantised transform coder for speech coding at 9.6kbit/s and below" *
PROCEEDINGS ICASSP 87, INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, Dallas, Texas, 6th-9th April 1987, vol. 3, pages 1637-1640, IEEE, New York, US; R.C. ROSE et al.: "Quality comparison of low complexity 4800 bps self excited and code excited vocoders" *

Also Published As

Publication number Publication date
EP0333425A2 (de) 1989-09-20
GB8806185D0 (en) 1988-04-13

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