FI103221B1 - Puheen koodaus - Google Patents

Puheen koodaus

Info

Publication number
FI103221B1
FI103221B1 FI892049A FI892049A FI103221B1 FI 103221 B1 FI103221 B1 FI 103221B1 FI 892049 A FI892049 A FI 892049A FI 892049 A FI892049 A FI 892049A FI 103221 B1 FI103221 B1 FI 103221B1
Authority
FI
Finland
Prior art keywords
coding
numbers
Prior art date
Application number
FI892049A
Other languages
English (en)
Swedish (sv)
Other versions
FI892049A0 (fi
FI103221B (fi
FI892049A (fi
Inventor
Daniel Kenneth Freeman
Ivan Boyd
Original Assignee
British Telecomm
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 GB878720389A external-priority patent/GB8720389D0/en
Priority claimed from GB878721667A external-priority patent/GB8721667D0/en
Application filed by British Telecomm filed Critical British Telecomm
Publication of FI892049A0 publication Critical patent/FI892049A0/fi
Publication of FI892049A publication Critical patent/FI892049A/fi
Application granted granted Critical
Publication of FI103221B publication Critical patent/FI103221B/fi
Publication of FI103221B1 publication Critical patent/FI103221B1/fi

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
    • G10L19/107—Sparse pulse excitation, e.g. by using algebraic codebook

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (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)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
FI892049A 1987-08-28 1989-04-28 Puheen koodaus FI103221B1 (fi)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB878720389A GB8720389D0 (en) 1987-08-28 1987-08-28 Speech coding
GB878721667A GB8721667D0 (en) 1987-09-15 1987-09-15 Speech coding
PCT/GB1988/000708 WO1989002147A1 (en) 1987-08-28 1988-08-26 Speech coding

Publications (4)

Publication Number Publication Date
FI892049A0 FI892049A0 (fi) 1989-04-28
FI892049A FI892049A (fi) 1989-04-28
FI103221B FI103221B (fi) 1999-05-14
FI103221B1 true FI103221B1 (fi) 1999-05-14

Family

ID=26292660

Family Applications (1)

Application Number Title Priority Date Filing Date
FI892049A FI103221B1 (fi) 1987-08-28 1989-04-28 Puheen koodaus

Country Status (10)

Country Link
US (1) US4991214A (fi)
EP (1) EP0307122B1 (fi)
JP (1) JP2957588B2 (fi)
CA (1) CA1337217C (fi)
DE (1) DE3870114D1 (fi)
DK (1) DK172571B1 (fi)
FI (1) FI103221B1 (fi)
HK (1) HK128896A (fi)
NO (1) NO301356B1 (fi)
WO (1) WO1989002147A1 (fi)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2632758B1 (fr) * 1988-06-13 1991-06-07 Matra Communication Procede de codage et codeur de parole a prediction lineaire
US5261027A (en) * 1989-06-28 1993-11-09 Fujitsu Limited Code excited linear prediction speech coding system
NL8902347A (nl) * 1989-09-20 1991-04-16 Nederland Ptt Werkwijze voor het coderen van een binnen een zeker tijdsinterval voorkomend analoog signaal, waarbij dat analoge signaal wordt geconverteerd in besturingscodes die bruikbaar zijn voor het samenstellen van een met dat analoge signaal overeenkomend synthetisch signaal.
US5754976A (en) * 1990-02-23 1998-05-19 Universite De Sherbrooke Algebraic codebook with signal-selected pulse amplitude/position combinations for fast coding of speech
US5701392A (en) * 1990-02-23 1997-12-23 Universite De Sherbrooke Depth-first algebraic-codebook search for fast coding of speech
EP0500961B1 (en) * 1990-09-14 1998-04-29 Fujitsu Limited Voice coding system
CA2051304C (en) * 1990-09-18 1996-03-05 Tomohiko Taniguchi Speech coding and decoding system
US5061924B1 (en) * 1991-01-25 1996-04-30 American Telephone & Telegraph Efficient vector codebook
US5195137A (en) * 1991-01-28 1993-03-16 At&T Bell Laboratories Method of and apparatus for generating auxiliary information for expediting sparse codebook search
US5182773A (en) * 1991-03-22 1993-01-26 International Business Machines Corporation Speaker-independent label coding apparatus
FI98104C (fi) * 1991-05-20 1997-04-10 Nokia Mobile Phones Ltd Menetelmä herätevektorin generoimiseksi ja digitaalinen puhekooderi
BR9206143A (pt) * 1991-06-11 1995-01-03 Qualcomm Inc Processos de compressão de final vocal e para codificação de taxa variável de quadros de entrada, aparelho para comprimir im sinal acústico em dados de taxa variável, codificador de prognóstico exitado por córdigo de taxa variável (CELP) e descodificador para descodificar quadros codificados
US5253811A (en) * 1991-11-08 1993-10-19 Kohler Co. Sheet flow spout
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.
EP0577488B9 (en) * 1992-06-29 2007-10-03 Nippon Telegraph And Telephone Corporation Speech coding method and apparatus for the same
TW271524B (fi) 1994-08-05 1996-03-01 Qualcomm Inc
US5742734A (en) * 1994-08-10 1998-04-21 Qualcomm Incorporated Encoding rate selection in a variable rate vocoder
US5727125A (en) * 1994-12-05 1998-03-10 Motorola, Inc. Method and apparatus for synthesis of speech excitation waveforms
US5602959A (en) * 1994-12-05 1997-02-11 Motorola, Inc. Method and apparatus for characterization and reconstruction of speech excitation waveforms
FR2729244B1 (fr) * 1995-01-06 1997-03-28 Matra Communication Procede de codage de parole a analyse par synthese
FR2729247A1 (fr) * 1995-01-06 1996-07-12 Matra Communication Procede de codage de parole a analyse par synthese
FR2729246A1 (fr) * 1995-01-06 1996-07-12 Matra Communication Procede de codage de parole a analyse par synthese
SE506379C3 (sv) * 1995-03-22 1998-01-19 Ericsson Telefon Ab L M Lpc-talkodare med kombinerad excitation
US5864797A (en) * 1995-05-30 1999-01-26 Sanyo Electric Co., Ltd. Pitch-synchronous speech coding by applying multiple analysis to select and align a plurality of types of code vectors
US5822724A (en) * 1995-06-14 1998-10-13 Nahumi; Dror Optimized pulse location in codebook searching techniques for speech processing
JP3196595B2 (ja) * 1995-09-27 2001-08-06 日本電気株式会社 音声符号化装置
JP3284874B2 (ja) 1996-03-29 2002-05-20 松下電器産業株式会社 音声符号化装置
US5751901A (en) * 1996-07-31 1998-05-12 Qualcomm Incorporated Method for searching an excitation codebook in a code excited linear prediction (CELP) coder
JP3372908B2 (ja) * 1999-09-17 2003-02-04 エヌイーシーマイクロシステム株式会社 マルチパルス探索処理方法と音声符号化装置
US6879955B2 (en) * 2001-06-29 2005-04-12 Microsoft Corporation Signal modification based on continuous time warping for low bit rate CELP coding
FI118704B (fi) 2003-10-07 2008-02-15 Nokia Corp Menetelmä ja laite lähdekoodauksen tekemiseksi
JP3981399B1 (ja) * 2006-03-10 2007-09-26 松下電器産業株式会社 固定符号帳探索装置および固定符号帳探索方法
DK2432599T3 (en) 2009-05-23 2019-01-21 Scott Anthony Wozny HARD DRIVE DISTRICT SYSTEM

Family Cites Families (7)

* 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
JPS60225200A (ja) * 1984-04-23 1985-11-09 日本電気株式会社 音声符号化器
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
FR2579356B1 (fr) * 1985-03-22 1987-05-07 Cit Alcatel Procede de codage a faible debit de la parole a signal multi-impulsionnel d'excitation
NL8500843A (nl) * 1985-03-22 1986-10-16 Koninkl Philips Electronics Nv Multipuls-excitatie lineair-predictieve spraakcoder.
GB8621932D0 (en) * 1986-09-11 1986-10-15 British Telecomm Speech coding

Also Published As

Publication number Publication date
JPH02501166A (ja) 1990-04-19
DK206189D0 (da) 1989-04-27
US4991214A (en) 1991-02-05
NO891724D0 (no) 1989-04-26
FI892049A0 (fi) 1989-04-28
DK172571B1 (da) 1999-01-25
FI103221B (fi) 1999-05-14
NO891724L (no) 1989-04-26
HK128896A (en) 1996-07-26
CA1337217C (en) 1995-10-03
DE3870114D1 (de) 1992-05-21
DK206189A (da) 1989-04-27
NO301356B1 (no) 1997-10-13
EP0307122B1 (en) 1992-04-15
WO1989002147A1 (en) 1989-03-09
FI892049A (fi) 1989-04-28
EP0307122A1 (en) 1989-03-15
JP2957588B2 (ja) 1999-10-04

Similar Documents

Publication Publication Date Title
FI103221B1 (fi) Puheen koodaus
JPS6471896A (en) Manufacture of alkyloligoglycoside
JPS6471895A (en) Manufacture of alkyloligoglycoside
FI86538C (fi) Foerfarande foer framstaellning av klordioxid
JPS6471897A (en) Manufacture of alkyloligoglycoside
FI88774C (fi) Foerfarande foer oxidering av en katalysator-baeraryta
JPS6450830A (en) Manufacture of polyfluorobutene
DK119590A (da) Renin-inhiberende paptider
JPS6450842A (en) Manufacture of alkylpentenoate
DE3854792D1 (de) Plasmareaktor
FI88716C (fi) Foerfarande foer framstaellning av farmakologiskt vaerdefullt pyrrolidinderivat
FI88628B (fi) Avtappningsventil i anordningar foer behandling av avfallspapper
GB2217729B (en) Obtenation of scualane
GB8726472D0 (en) Application of chemicals
GB8604830D0 (en) Applications of tetrathiafulvalenes
JPS6468338A (en) Manufacture of bisphenol-bisacrylate
JPS6429333A (en) Manufacture of alpha-fluoroketones
TR22560A (tr) Sulfonilguanidinopirimidin tuerevleri
KR890003365U (ko) 패용 표찰
DK629387D0 (da) Fremgangsmaade
DK504688D0 (da) Appetitundertrykkende tandplejemiddel
GB8601724D0 (en) Application of tetracyano-quinodimethanes
KR880021636U (ko) 샤아프펜슬의 유니트블럭부재
NO175450C (no) Koding av data
FI88924B (fi) Foerfarande foer framstaellning av nytt diosminderivat

Legal Events

Date Code Title Description
FG Patent granted

Owner name: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

MA Patent expired