ES2039655T3 - Codificacion del habla. - Google Patents

Codificacion del habla.

Info

Publication number
ES2039655T3
ES2039655T3 ES198888312412T ES88312412T ES2039655T3 ES 2039655 T3 ES2039655 T3 ES 2039655T3 ES 198888312412 T ES198888312412 T ES 198888312412T ES 88312412 T ES88312412 T ES 88312412T ES 2039655 T3 ES2039655 T3 ES 2039655T3
Authority
ES
Spain
Prior art keywords
speech coding
towards
lpc filter
language
rivate
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 - Lifetime
Application number
ES198888312412T
Other languages
English (en)
Inventor
Martin Roger Lester Hodges
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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
Priority claimed from GB888800120A external-priority patent/GB8800120D0/en
Priority claimed from GB888801998A external-priority patent/GB8801998D0/en
Application filed by British Telecommunications PLC filed Critical British Telecommunications PLC
Application granted granted Critical
Publication of ES2039655T3 publication Critical patent/ES2039655T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

EL LENGUAJE DE ENTRADA SE PROCESA PARA DE RIVARSE EN UNOS PARAMETROS HACIA UN FILTRO LPC (2) Y OTROS HACIA UN EXCITADOR DE MULTIPLES PULSOS. ESTOS ULTIMOS SE COMPUTAN (10) ANTES DE TRANSMITIRSE JUNTO CON LOS PRIMEROS A UN DECODIFICADOR EN EL CUAL SE GENERA UNA EXCITACION QUE INDUCE AL FILTRO LPC A PRODUCIR EL LENGUAJE SINTETIZADO. ANTES DEL COMPUTO, LAS AMPLITUDES DEL PULSO SE MULTIPLICAN POR UNOS FACTORES (FI) LOS CUALES DEPENDEN SOLO DE SU POSICION EN LA SECUENCIA DE LA CUAL SE DERIVAN LOS PULSOS.
ES198888312412T 1988-01-05 1988-12-29 Codificacion del habla. Expired - Lifetime ES2039655T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888800120A GB8800120D0 (en) 1988-01-05 1988-01-05 Speech coding
GB888801998A GB8801998D0 (en) 1988-01-29 1988-01-29 Speech coding

Publications (1)

Publication Number Publication Date
ES2039655T3 true ES2039655T3 (es) 1993-10-01

Family

ID=26293268

Family Applications (1)

Application Number Title Priority Date Filing Date
ES198888312412T Expired - Lifetime ES2039655T3 (es) 1988-01-05 1988-12-29 Codificacion del habla.

Country Status (11)

Country Link
US (1) US5058165A (es)
EP (1) EP0324283B1 (es)
JP (1) JP2992045B2 (es)
AU (1) AU608944B2 (es)
CA (1) CA1334690C (es)
DE (2) DE3879664D1 (es)
DK (1) DK172908B1 (es)
ES (1) ES2039655T3 (es)
HK (1) HK130196A (es)
NO (1) NO301097B1 (es)
WO (1) WO1989006418A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2729244B1 (fr) * 1995-01-06 1997-03-28 Matra Communication Procede de codage de parole a analyse par synthese

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE32580E (en) * 1981-12-01 1988-01-19 American Telephone And Telegraph Company, At&T Bell Laboratories Digital speech coder
US4724535A (en) * 1984-04-17 1988-02-09 Nec Corporation Low bit-rate pattern coding with recursive orthogonal decision of parameters
JPS61134000A (ja) * 1984-12-05 1986-06-21 株式会社日立製作所 音声分析合成方式
CA1252568A (en) * 1984-12-24 1989-04-11 Kazunori Ozawa Low bit-rate pattern encoding and decoding capable of reducing an information transmission rate
NL8500843A (nl) * 1985-03-22 1986-10-16 Koninkl Philips Electronics Nv Multipuls-excitatie lineair-predictieve spraakcoder.
US4944013A (en) * 1985-04-03 1990-07-24 British Telecommunications Public Limited Company Multi-pulse speech coder
JPH0650439B2 (ja) * 1986-07-17 1994-06-29 日本電気株式会社 マルチパルス駆動形音声符号化器
GB8621932D0 (en) * 1986-09-11 1986-10-15 British Telecomm Speech coding

Also Published As

Publication number Publication date
NO893532L (no) 1989-09-04
DK425689A (da) 1989-08-29
DK172908B1 (da) 1999-09-27
DE3879664T4 (de) 1993-10-07
NO893532D0 (no) 1989-09-04
JP2992045B2 (ja) 1999-12-20
EP0324283A1 (en) 1989-07-19
US5058165A (en) 1991-10-15
NO301097B1 (no) 1997-09-08
DK425689D0 (da) 1989-08-29
AU2921989A (en) 1989-08-01
EP0324283B1 (en) 1993-03-24
AU608944B2 (en) 1991-04-18
JPH02502857A (ja) 1990-09-06
DE3879664T2 (de) 1993-07-01
DE3879664D1 (de) 1993-04-29
WO1989006418A1 (en) 1989-07-13
CA1334690C (en) 1995-03-07
HK130196A (en) 1996-07-26

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