SG43128A1 - Code excitation linear predictive (celp) encoder and decoder - Google Patents

Code excitation linear predictive (celp) encoder and decoder

Info

Publication number
SG43128A1
SG43128A1 SG1996004078A SG1996004078A SG43128A1 SG 43128 A1 SG43128 A1 SG 43128A1 SG 1996004078 A SG1996004078 A SG 1996004078A SG 1996004078 A SG1996004078 A SG 1996004078A SG 43128 A1 SG43128 A1 SG 43128A1
Authority
SG
Singapore
Prior art keywords
celp
decoder
encoder
linear predictive
excitation linear
Prior art date
Application number
SG1996004078A
Other languages
English (en)
Inventor
Kenichiro Hosoda
Hiromi Aoyagi
Hiroshi Katsuragawa
Yoshihiro Ariyama
Original Assignee
Oki Electric Ind Co Ltd
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 Oki Electric Ind Co Ltd filed Critical Oki Electric Ind Co Ltd
Priority to EP93913500A priority Critical patent/EP0654909A4/fr
Priority to SG1996004078A priority patent/SG43128A1/en
Priority to US08/379,653 priority patent/US5727122A/en
Priority to PCT/JP1993/000776 priority patent/WO1994029965A1/fr
Priority claimed from PCT/JP1993/000776 external-priority patent/WO1994029965A1/fr
Priority to NO950490A priority patent/NO950490L/no
Publication of SG43128A1 publication Critical patent/SG43128A1/en

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
    • 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
    • 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
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders

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)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
SG1996004078A 1993-06-10 1993-06-10 Code excitation linear predictive (celp) encoder and decoder SG43128A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP93913500A EP0654909A4 (fr) 1993-06-10 1993-06-10 Codeur-decodeur predictif lineaire a excitation par codes.
SG1996004078A SG43128A1 (en) 1993-06-10 1993-06-10 Code excitation linear predictive (celp) encoder and decoder
US08/379,653 US5727122A (en) 1993-06-10 1993-06-10 Code excitation linear predictive (CELP) encoder and decoder and code excitation linear predictive coding method
PCT/JP1993/000776 WO1994029965A1 (fr) 1993-06-10 1993-06-10 Codeur-decodeur predictif lineaire a excitation par codes
NO950490A NO950490L (no) 1993-06-10 1995-02-09 Kode-eksiterende, lineært forutsigbar (CELP) koder og dekoder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SG1996004078A SG43128A1 (en) 1993-06-10 1993-06-10 Code excitation linear predictive (celp) encoder and decoder
PCT/JP1993/000776 WO1994029965A1 (fr) 1993-06-10 1993-06-10 Codeur-decodeur predictif lineaire a excitation par codes

Publications (1)

Publication Number Publication Date
SG43128A1 true SG43128A1 (en) 1997-10-17

Family

ID=20429278

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996004078A SG43128A1 (en) 1993-06-10 1993-06-10 Code excitation linear predictive (celp) encoder and decoder

Country Status (3)

Country Link
US (1) US5727122A (fr)
EP (1) EP0654909A4 (fr)
SG (1) SG43128A1 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3328080B2 (ja) * 1994-11-22 2002-09-24 沖電気工業株式会社 コード励振線形予測復号器
JP3522012B2 (ja) * 1995-08-23 2004-04-26 沖電気工業株式会社 コード励振線形予測符号化装置
US5664054A (en) * 1995-09-29 1997-09-02 Rockwell International Corporation Spike code-excited linear prediction
JP3481027B2 (ja) * 1995-12-18 2003-12-22 沖電気工業株式会社 音声符号化装置
GB2312360B (en) * 1996-04-12 2001-01-24 Olympus Optical Co Voice signal coding apparatus
JP3878254B2 (ja) * 1996-06-21 2007-02-07 株式会社リコー 音声圧縮符号化方法および音声圧縮符号化装置
KR100339168B1 (ko) 1996-11-07 2002-06-03 모리시타 요이찌 음원 벡터 생성 장치, 음성 부호화 장치 및 음성 복호화장치
US7024355B2 (en) * 1997-01-27 2006-04-04 Nec Corporation Speech coder/decoder
JPH10247098A (ja) * 1997-03-04 1998-09-14 Mitsubishi Electric Corp 可変レート音声符号化方法、可変レート音声復号化方法
US6161086A (en) * 1997-07-29 2000-12-12 Texas Instruments Incorporated Low-complexity speech coding with backward and inverse filtered target matching and a tree structured mutitap adaptive codebook search
US6058359A (en) * 1998-03-04 2000-05-02 Telefonaktiebolaget L M Ericsson Speech coding including soft adaptability feature
CA2636684C (fr) 1997-12-24 2009-08-18 Mitsubishi Denki Kabushiki Kaisha Methode de codage et le decodage de la parole et appareils connexes
US6385576B2 (en) * 1997-12-24 2002-05-07 Kabushiki Kaisha Toshiba Speech encoding/decoding method using reduced subframe pulse positions having density related to pitch
US6151414A (en) * 1998-01-30 2000-11-21 Lucent Technologies Inc. Method for signal encoding and feature extraction
US7072832B1 (en) * 1998-08-24 2006-07-04 Mindspeed Technologies, Inc. System for speech encoding having an adaptive encoding arrangement
US6449313B1 (en) * 1999-04-28 2002-09-10 Lucent Technologies Inc. Shaped fixed codebook search for celp speech coding
US6959274B1 (en) 1999-09-22 2005-10-25 Mindspeed Technologies, Inc. Fixed rate speech compression system and method
EP1279167B1 (fr) * 2000-04-24 2007-05-30 QUALCOMM Incorporated Procede et appareil pour quantifier de maniere predictive la trame voisee de la parole
US6879952B2 (en) * 2000-04-26 2005-04-12 Microsoft Corporation Sound source separation using convolutional mixing and a priori sound source knowledge
AU2002224116A1 (en) * 2000-11-27 2002-06-03 Matsushita Electric Industrial Co., Ltd. Method, device and program for coding and decoding acoustic parameter, and method, device and program for coding and decoding sound
WO2011048810A1 (fr) * 2009-10-20 2011-04-28 パナソニック株式会社 Dispositif de quantification vectorielle et procédé de quantification vectorielle

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4910781A (en) * 1987-06-26 1990-03-20 At&T Bell Laboratories Code excited linear predictive vocoder using virtual searching
IL94119A (en) * 1989-06-23 1996-06-18 Motorola Inc Digital speech coder
CA2019801C (fr) * 1989-06-28 1994-05-31 Tomohiko Taniguchi Systeme et appareil de codage de paroles
JP2940005B2 (ja) * 1989-07-20 1999-08-25 日本電気株式会社 音声符号化装置
JP3010654B2 (ja) * 1989-11-29 2000-02-21 ソニー株式会社 圧縮符号化装置及び方法
JP2796408B2 (ja) * 1990-06-18 1998-09-10 シャープ株式会社 音声情報圧縮装置
JPH0451199A (ja) * 1990-06-18 1992-02-19 Fujitsu Ltd 音声符号化・復号化方式
CA2051304C (fr) * 1990-09-18 1996-03-05 Tomohiko Taniguchi Systeme de codage et de decodage de paroles
US5293449A (en) * 1990-11-23 1994-03-08 Comsat Corporation Analysis-by-synthesis 2,4 kbps linear predictive speech codec
IT1241358B (it) * 1990-12-20 1994-01-10 Sip Sistema di codifica del segnale vocale con sottocodice annidato
US5371853A (en) * 1991-10-28 1994-12-06 University Of Maryland At College Park Method and system for CELP speech coding and codebook for use therewith
JP2968109B2 (ja) * 1991-12-11 1999-10-25 沖電気工業株式会社 コード励振線形予測符号化器及び復号化器
JP2774003B2 (ja) * 1991-12-24 1998-07-09 沖電気工業株式会社 コード励振線形予測符号化装置

Also Published As

Publication number Publication date
US5727122A (en) 1998-03-10
EP0654909A1 (fr) 1995-05-24
EP0654909A4 (fr) 1997-09-10

Similar Documents

Publication Publication Date Title
SG43128A1 (en) Code excitation linear predictive (celp) encoder and decoder
KR970000843B1 (en) Optical code reader
EP0573216A3 (en) Celp vocoder
DE69232904D1 (de) Sprachkodierer/-dekodierer und Kodierungs-/Dekodierungsverfahren
EP0409239A3 (en) Speech coding/decoding method
AU1336995A (en) Adaptive speech coder having code excited linear prediction with multiple codebook searches
SG47561A1 (en) Spiral magnetic linear translating mechanism
DE69515461D1 (de) Simplifiziertes strichkodedekodierverfahren
AU1508297A (en) Bar code decoding system
ZA926061B (en) Speech synthesis using perceptual linear prediction parameters
DE69401409D1 (de) Linearmotor
DE69408478D1 (de) Lineare digital-analoge interaktive armbanduhr
GB2283876B (en) Encoding and decoding code sequences and frames
AU3175489A (en) Linear predictive speech analysis-synthesis apparatus
DE69420200D1 (de) CELP Koder-Dekoder
DE69432037D1 (de) 4B6B-Kodierung
DE69305761D1 (de) Koder-Dekoder
GB2306033B (en) Bar code decoding with speed compensation
GB2280288B (en) Code sequence detection
FI932664A7 (fi) Puheendekoodausmenetelmä ja puheendekoodain
EP0614075A3 (fr) Méthode de codage de parole utilisant la quantisation codée Trellis pour codage LPC.
FI930493A7 (fi) Menetelmä koodatun puheen lähettämiseksi ja vastaanottamiseksi
AU5095193A (en) Adaptive speech coder having code excited linear prediction
FR2686473B1 (fr) Codeur multicomposantes x-paquets et decodeur correspondant.
GB2304260B (en) Apparatus for encoding and decoding for run length limited code data