ES2112807A1 - Codigo algebraico cifrado con amplitudes de impulso seleccionados por señal para la codificacion rapida de voz. - Google Patents

Codigo algebraico cifrado con amplitudes de impulso seleccionados por señal para la codificacion rapida de voz.

Info

Publication number
ES2112807A1
ES2112807A1 ES09650025A ES9650025A ES2112807A1 ES 2112807 A1 ES2112807 A1 ES 2112807A1 ES 09650025 A ES09650025 A ES 09650025A ES 9650025 A ES9650025 A ES 9650025A ES 2112807 A1 ES2112807 A1 ES 2112807A1
Authority
ES
Spain
Prior art keywords
amplitude
zero
combinations
codebook
pulse
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.)
Granted
Application number
ES09650025A
Other languages
English (en)
Other versions
ES2112807B1 (es
Inventor
Jean-Pierre Adoul
Claude Laflamme
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.)
Universite de Sherbrooke
Original Assignee
Universite de Sherbrooke
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27010408&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2112807(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Universite de Sherbrooke filed Critical Universite de Sherbrooke
Publication of ES2112807A1 publication Critical patent/ES2112807A1/es
Application granted granted Critical
Publication of ES2112807B1 publication Critical patent/ES2112807B1/es
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
    • G10L13/00—Speech synthesis; Text to speech systems
    • 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
    • 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
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0004—Design or structure of the codebook
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0007—Codebook element generation
    • G10L2019/0008—Algebraic codebooks
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0011—Long term prediction filters, i.e. pitch estimation
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0013—Codebook search algorithms
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/06—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being correlation coefficients

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

SE ANALIZA UN CODIGO CIFRADO A FIN DE CODIFICAR UNA SEÑAL DE SONIDO. ESTE CODIGO CIFRADO COMPRENDE UN CONJUNTO DE COMBINACIONES DE AMPLITUD/POSICION DE IMPULSOS, CADA UNA DE LAS CUALES DEFINE L POSICIONES DIFERENTES Y COMPRENDE TANTO IMPULSOS DE AMPLITUD CERO COMO IMPULSOS DE AMPLITUD NO CERO ASIGNADOS A RESPECTIVAS POSICIONES P=1,2...L DE LA COMBINACION, DONDE CADA IMPULSO DE AMPLITUD NO CERO ADOPTA POR LO MENOS UNA DE Q AMPLITUDES POSIBLES. PARA REDUCIR LA COMPLEJIDAD DEL ANALISIS, SE PRESELECCIONA UN SUBCONJUNTO DE COMBINACIONES DE AMPLITUD/POSICION DE IMPULSOS DEL CODIGO CIFRADO EN RELACION A LA SEÑAL DE SONIDO, Y SOLO SE ANALIZA ESTE SUBCONJUNTO DE COMBINACIONES. LA PRESELECCION DEL SUBCONJUNTO DE COMBINACIONES CONSISTE EN PREESTABLECER EN RELACION CON LA SEÑAL DE SONIDO, UNA FUNCION SP ENTRE LAS RESPECTIVAS POSICIONES P=1,2...L Y LAS Q AMPLITUDES POSIBLES, LIMITANDOSE EL ANALISIS A LAS COMBINACIONES DEL CODIGO CIFRADO QUE TENGAN IMPULSOS DE AMPLITUD NO CERO QUE RESPETEN LA FUNCION PREESTABLECIDA. LA FUNCION PUEDE SER PREESTABLECIDA PREASIGNANDO UNA DE Q AMPLITUDES POSIBLES A CADA POSICION P, SIENDO LA FUNCION PREESTABLECIDA RESPETADA CUANDO CADA UNO DE LOS IMPULSOS DE AMPLITUD NO CERO DE UNA COMBINACION TIENE UNA AMPLITUD IGUAL A LA AMPLITUD SP PREASIGNADA A LA POSICION P DE ESTE IMPULSO.
ES09650025A 1995-02-06 1996-08-15 Codigo algebraico cifrado con amplitudes de impulso seleccionados por señal para la codificacion rapida de voz. Expired - Fee Related ES2112807B1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US38396895A 1995-02-06 1995-02-06
US08/508,801 US5754976A (en) 1990-02-23 1995-07-28 Algebraic codebook with signal-selected pulse amplitude/position combinations for fast coding of speech

Publications (2)

Publication Number Publication Date
ES2112807A1 true ES2112807A1 (es) 1998-04-01
ES2112807B1 ES2112807B1 (es) 1999-04-16

Family

ID=27010408

Family Applications (1)

Application Number Title Priority Date Filing Date
ES09650025A Expired - Fee Related ES2112807B1 (es) 1995-02-06 1996-08-15 Codigo algebraico cifrado con amplitudes de impulso seleccionados por señal para la codificacion rapida de voz.

Country Status (26)

Country Link
US (1) US5754976A (es)
EP (2) EP0808496B1 (es)
JP (2) JP3430175B2 (es)
KR (2) KR100388751B1 (es)
CN (2) CN1198262C (es)
AR (1) AR000871A1 (es)
AT (2) ATE230888T1 (es)
AU (1) AU708392C (es)
BR (1) BR9607026A (es)
CA (1) CA2210765C (es)
DE (1) DE19604273C5 (es)
DK (2) DK1225568T3 (es)
ES (1) ES2112807B1 (es)
FI (2) FI117994B (es)
FR (1) FR2730336B1 (es)
GB (1) GB2297671B (es)
HK (2) HK1002492A1 (es)
IN (1) IN187453B (es)
IT (1) IT1305724B1 (es)
MX (1) MX9705997A (es)
MY (2) MY130529A (es)
NO (1) NO318595B1 (es)
PT (1) PT1225568E (es)
RU (1) RU2142166C1 (es)
SE (1) SE520553C2 (es)
WO (1) WO1996024925A1 (es)

Families Citing this family (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE508788C2 (sv) * 1995-04-12 1998-11-02 Ericsson Telefon Ab L M Förfarande att bestämma positionerna inom en talram för excitationspulser
US5822724A (en) * 1995-06-14 1998-10-13 Nahumi; Dror Optimized pulse location in codebook searching techniques for speech processing
US6393391B1 (en) * 1998-04-15 2002-05-21 Nec Corporation Speech coder for high quality at low bit rates
TW317051B (es) * 1996-02-15 1997-10-01 Philips Electronics Nv
JP3523649B2 (ja) * 1997-03-12 2004-04-26 三菱電機株式会社 音声符号化装置、音声復号装置及び音声符号化復号装置、及び、音声符号化方法、音声復号方法及び音声符号化復号方法
FI114248B (fi) * 1997-03-14 2004-09-15 Nokia Corp Menetelmä ja laite audiokoodaukseen ja audiodekoodaukseen
CN100583242C (zh) * 1997-12-24 2010-01-20 三菱电机株式会社 声音译码方法和声音译码装置
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
US5963897A (en) * 1998-02-27 1999-10-05 Lernout & Hauspie Speech Products N.V. Apparatus and method for hybrid excited linear prediction speech encoding
FI113571B (fi) 1998-03-09 2004-05-14 Nokia Corp Puheenkoodaus
JP3180762B2 (ja) * 1998-05-11 2001-06-25 日本電気株式会社 音声符号化装置及び音声復号化装置
US6714907B2 (en) * 1998-08-24 2004-03-30 Mindspeed Technologies, Inc. Codebook structure and search for speech coding
DE69931641T2 (de) * 1998-09-11 2006-10-05 Motorola, Inc., Schaumburg Verfahren zur Kodierung von Informationssignalen
SE521225C2 (sv) * 1998-09-16 2003-10-14 Ericsson Telefon Ab L M Förfarande och anordning för CELP-kodning/avkodning
CA2252170A1 (en) * 1998-10-27 2000-04-27 Bruno Bessette A method and device for high quality coding of wideband speech and audio signals
JP4173940B2 (ja) * 1999-03-05 2008-10-29 松下電器産業株式会社 音声符号化装置及び音声符号化方法
US6295520B1 (en) 1999-03-15 2001-09-25 Tritech Microelectronics Ltd. Multi-pulse synthesis simplification in analysis-by-synthesis coders
JP2001075600A (ja) * 1999-09-07 2001-03-23 Mitsubishi Electric Corp 音声符号化装置および音声復号化装置
US7272553B1 (en) * 1999-09-08 2007-09-18 8X8, Inc. Varying pulse amplitude multi-pulse analysis speech processor and method
JP4005359B2 (ja) 1999-09-14 2007-11-07 富士通株式会社 音声符号化及び音声復号化装置
CA2290037A1 (en) 1999-11-18 2001-05-18 Voiceage Corporation Gain-smoothing amplifier device and method in codecs for wideband speech and audio signals
KR100576024B1 (ko) * 2000-04-12 2006-05-02 삼성전자주식회사 에이켈프 음성 압축기의 코드북 검색 장치 및 방법
US6728669B1 (en) * 2000-08-07 2004-04-27 Lucent Technologies Inc. Relative pulse position in celp vocoding
US7363219B2 (en) * 2000-09-22 2008-04-22 Texas Instruments Incorporated Hybrid speech coding and system
CA2327041A1 (en) * 2000-11-22 2002-05-22 Voiceage Corporation A method for indexing pulse positions and signs in algebraic codebooks for efficient coding of wideband signals
KR100438175B1 (ko) * 2001-10-23 2004-07-01 엘지전자 주식회사 코드북 검색방법
US7236928B2 (en) * 2001-12-19 2007-06-26 Ntt Docomo, Inc. Joint optimization of speech excitation and filter parameters
US7206740B2 (en) * 2002-01-04 2007-04-17 Broadcom Corporation Efficient excitation quantization in noise feedback coding with general noise shaping
JP2003255976A (ja) * 2002-02-28 2003-09-10 Nec Corp 音声素片データベースの圧縮伸張を行なう音声合成装置及び方法
CA2388439A1 (en) * 2002-05-31 2003-11-30 Voiceage Corporation A method and device for efficient frame erasure concealment in linear predictive based speech codecs
CA2392640A1 (en) * 2002-07-05 2004-01-05 Voiceage Corporation A method and device for efficient in-based dim-and-burst signaling and half-rate max operation in variable bit-rate wideband speech coding for cdma wireless systems
US7054807B2 (en) * 2002-11-08 2006-05-30 Motorola, Inc. Optimizing encoder for efficiently determining analysis-by-synthesis codebook-related parameters
KR100503414B1 (ko) * 2002-11-14 2005-07-22 한국전자통신연구원 고정 코드북의 집중 검색 방법 및 장치
US7698132B2 (en) * 2002-12-17 2010-04-13 Qualcomm Incorporated Sub-sampled excitation waveform codebooks
US7249014B2 (en) * 2003-03-13 2007-07-24 Intel Corporation Apparatus, methods and articles incorporating a fast algebraic codebook search technique
WO2004090870A1 (ja) * 2003-04-04 2004-10-21 Kabushiki Kaisha Toshiba 広帯域音声を符号化または復号化するための方法及び装置
EP1513137A1 (en) * 2003-08-22 2005-03-09 MicronasNIT LCC, Novi Sad Institute of Information Technologies Speech processing system and method with multi-pulse excitation
CN100416652C (zh) * 2005-10-31 2008-09-03 连展科技(天津)有限公司 增强的amr编码器快速固定码本搜索方法
JP5159318B2 (ja) * 2005-12-09 2013-03-06 パナソニック株式会社 固定符号帳探索装置および固定符号帳探索方法
US8255207B2 (en) * 2005-12-28 2012-08-28 Voiceage Corporation Method and device for efficient frame erasure concealment in speech codecs
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
US20080120098A1 (en) * 2006-11-21 2008-05-22 Nokia Corporation Complexity Adjustment for a Signal Encoder
US8688437B2 (en) 2006-12-26 2014-04-01 Huawei Technologies Co., Ltd. Packet loss concealment for speech coding
CN101286321B (zh) * 2006-12-26 2013-01-09 华为技术有限公司 双脉冲激励的线性测编码
ES2817906T3 (es) 2007-04-29 2021-04-08 Huawei Tech Co Ltd Método de codificación de impulsos de las señales de excitación
CN100530357C (zh) * 2007-07-11 2009-08-19 华为技术有限公司 固定码书搜索方法及搜索器
CN101842833B (zh) * 2007-09-11 2012-07-18 沃伊斯亚吉公司 语音和音频编码中快速代数码本搜索的方法和设备
CN100578619C (zh) * 2007-11-05 2010-01-06 华为技术有限公司 编码方法和编码器
US8150689B2 (en) * 2007-12-21 2012-04-03 Nvoq Incorporated Distributed dictation/transcription system
US7889103B2 (en) * 2008-03-13 2011-02-15 Motorola Mobility, Inc. Method and apparatus for low complexity combinatorial coding of signals
PL2242045T3 (pl) * 2009-04-16 2013-02-28 Univ Mons Sposób kodowania i syntezy mowy
CN101931414B (zh) * 2009-06-19 2013-04-24 华为技术有限公司 脉冲编码方法及装置、脉冲解码方法及装置
US8280729B2 (en) * 2010-01-22 2012-10-02 Research In Motion Limited System and method for encoding and decoding pulse indices
CN102299760B (zh) 2010-06-24 2014-03-12 华为技术有限公司 脉冲编解码方法及脉冲编解码器
CN102623012B (zh) * 2011-01-26 2014-08-20 华为技术有限公司 矢量联合编解码方法及编解码器
US8880404B2 (en) * 2011-02-07 2014-11-04 Qualcomm Incorporated Devices for adaptively encoding and decoding a watermarked signal
US9767822B2 (en) 2011-02-07 2017-09-19 Qualcomm Incorporated Devices for encoding and decoding a watermarked signal
US9767823B2 (en) 2011-02-07 2017-09-19 Qualcomm Incorporated Devices for encoding and detecting a watermarked signal
US9263053B2 (en) 2012-04-04 2016-02-16 Google Technology Holdings LLC Method and apparatus for generating a candidate code-vector to code an informational signal
US9070356B2 (en) 2012-04-04 2015-06-30 Google Technology Holdings LLC Method and apparatus for generating a candidate code-vector to code an informational signal
CN103456309B (zh) * 2012-05-31 2016-04-20 展讯通信（上海）有限公司 语音编码器及其代数码表搜索方法和装置
US9728200B2 (en) * 2013-01-29 2017-08-08 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for adaptive formant sharpening in linear prediction coding
US20140334564A1 (en) * 2013-05-09 2014-11-13 Samsung Electronics Co., Ltd Method and system for providing low-complexity hybrid precoding in wireless communication systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991013432A1 (en) * 1990-02-23 1991-09-05 Universite De Sherbrooke Dynamic codebook for efficient speech coding based on algebraic codes
EP0514912A2 (en) * 1991-05-22 1992-11-25 Nippon Telegraph And Telephone Corporation Speech coding and decoding methods
EP0532225A2 (en) * 1991-09-10 1993-03-17 AT&T Corp. Method and apparatus for speech coding and decoding

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4401855A (en) * 1980-11-28 1983-08-30 The Regents Of The University Of California Apparatus for the linear predictive coding of human speech
CA1164569A (en) * 1981-03-17 1984-03-27 Katsunobu Fushikida System for extraction of pole/zero parameter values
EP0107659A4 (en) * 1982-04-29 1985-02-18 Massachusetts Inst Technology VOICE ENCODER AND SYNTHESIZER.
US4625286A (en) * 1982-05-03 1986-11-25 Texas Instruments Incorporated Time encoding of LPC roots
US4520499A (en) * 1982-06-25 1985-05-28 Milton Bradley Company Combination speech synthesis and recognition apparatus
JPS5922165A (ja) * 1982-07-28 1984-02-04 Nippon Telegr & Teleph Corp <Ntt> アドレス制御回路
EP0111612B1 (fr) * 1982-11-26 1987-06-24 International Business Machines Corporation Procédé et dispositif de codage d'un signal vocal
US4764963A (en) * 1983-04-12 1988-08-16 American Telephone And Telegraph Company, At&T Bell Laboratories Speech pattern compression arrangement utilizing speech event identification
US4667340A (en) * 1983-04-13 1987-05-19 Texas Instruments Incorporated Voice messaging system with pitch-congruent baseband coding
US4669120A (en) * 1983-07-08 1987-05-26 Nec Corporation Low bit-rate speech coding with decision of a location of each exciting pulse of a train concurrently with optimum amplitudes of pulses
DE3335358A1 (de) * 1983-09-29 1985-04-11 Siemens AG, 1000 Berlin und 8000 München Verfahren zur bestimmung von sprachspektren fuer die automatische spracherkennung und sprachcodierung
US4799261A (en) * 1983-11-03 1989-01-17 Texas Instruments Incorporated Low data rate speech encoding employing syllable duration patterns
CA1236922A (en) * 1983-11-30 1988-05-17 Paul Mermelstein Method and apparatus for coding digital signals
CA1223365A (en) * 1984-02-02 1987-06-23 Shigeru Ono Method and apparatus for speech coding
CA1226946A (en) * 1984-04-17 1987-09-15 Shigeru Ono Low bit-rate pattern coding with recursive orthogonal decision of parameters
US4680797A (en) * 1984-06-26 1987-07-14 The United States Of America As Represented By The Secretary Of The Air Force Secure digital speech communication
US4742550A (en) * 1984-09-17 1988-05-03 Motorola, Inc. 4800 BPS interoperable relp system
CA1252568A (en) * 1984-12-24 1989-04-11 Kazunori Ozawa Low bit-rate pattern encoding and decoding capable of reducing an information transmission rate
US4858115A (en) * 1985-07-31 1989-08-15 Unisys Corporation Loop control mechanism for scientific processor
IT1184023B (it) * 1985-12-17 1987-10-22 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante analisi a sottobande e quantizzazione vettorariale con allocazione dinamica dei bit di codifica
US4720861A (en) * 1985-12-24 1988-01-19 Itt Defense Communications A Division Of Itt Corporation Digital speech coding circuit
US4797926A (en) * 1986-09-11 1989-01-10 American Telephone And Telegraph Company, At&T Bell Laboratories Digital speech vocoder
US4771465A (en) * 1986-09-11 1988-09-13 American Telephone And Telegraph Company, At&T Bell Laboratories Digital speech sinusoidal vocoder with transmission of only subset of harmonics
US4873723A (en) * 1986-09-18 1989-10-10 Nec Corporation Method and apparatus for multi-pulse speech coding
US4797925A (en) * 1986-09-26 1989-01-10 Bell Communications Research, Inc. Method for coding speech at low bit rates
IT1195350B (it) * 1986-10-21 1988-10-12 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante estrazione di para metri e tecniche di quantizzazione vettoriale
US4868867A (en) * 1987-04-06 1989-09-19 Voicecraft Inc. Vector excitation speech or audio coder for transmission or storage
CA1337217C (en) * 1987-08-28 1995-10-03 Daniel Kenneth Freeman Speech coding
US4815134A (en) * 1987-09-08 1989-03-21 Texas Instruments Incorporated Very low rate speech encoder and decoder
IL84902A (en) * 1987-12-21 1991-12-15 D S P Group Israel Ltd Digital autocorrelation system for detecting speech in noisy audio signal
US4817157A (en) * 1988-01-07 1989-03-28 Motorola, Inc. Digital speech coder having improved vector excitation source
DE68922134T2 (de) * 1988-05-20 1995-11-30 Nec Corp Überträgungssystem für codierte Sprache mit Codebüchern zur Synthetisierung von Komponenten mit niedriger Amplitude.
US5008965A (en) * 1988-07-11 1991-04-23 Kinetic Concepts, Inc. Fluidized bead bed
IT1232084B (it) * 1989-05-03 1992-01-23 Cselt Centro Studi Lab Telecom Sistema di codifica per segnali audio a banda allargata
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
US5097508A (en) * 1989-08-31 1992-03-17 Codex Corporation Digital speech coder having improved long term lag parameter determination
US5307441A (en) * 1989-11-29 1994-04-26 Comsat Corporation Wear-toll quality 4.8 kbps speech codec
US5144671A (en) * 1990-03-15 1992-09-01 Gte Laboratories Incorporated Method for reducing the search complexity in analysis-by-synthesis coding
US5293449A (en) * 1990-11-23 1994-03-08 Comsat Corporation Analysis-by-synthesis 2,4 kbps linear predictive speech codec
JP3089769B2 (ja) * 1991-12-03 2000-09-18 日本電気株式会社 音声符号化装置
US5457783A (en) * 1992-08-07 1995-10-10 Pacific Communication Sciences, Inc. Adaptive speech coder having code excited linear prediction
DE4315313C2 (de) * 1993-05-07 2001-11-08 Bosch Gmbh Robert Vektorcodierverfahren insbesondere für Sprachsignale

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991013432A1 (en) * 1990-02-23 1991-09-05 Universite De Sherbrooke Dynamic codebook for efficient speech coding based on algebraic codes
EP0514912A2 (en) * 1991-05-22 1992-11-25 Nippon Telegraph And Telephone Corporation Speech coding and decoding methods
EP0532225A2 (en) * 1991-09-10 1993-03-17 AT&T Corp. Method and apparatus for speech coding and decoding

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING, Vol. 1, n‘ 3, Julio 1993, New York, pßginas 315-325, XP000388575 M. ELSHAFEI AHMED; M.I. AL-SUWAIYEL: "Fast methods for code search in celp" *

Also Published As

Publication number Publication date
EP0808496A1 (en) 1997-11-26
JP3430175B2 (ja) 2003-07-28
EP1225568B1 (en) 2003-08-27
NO973472L (no) 1997-10-06
HK1055007A1 (en) 2003-12-19
EP0808496B1 (en) 2003-01-08
SE520553C2 (sv) 2003-07-22
US5754976A (en) 1998-05-19
ATE248423T1 (de) 2003-09-15
KR100393910B1 (ko) 2003-08-02
AU708392C (en) 2003-01-09
CN1220178C (zh) 2005-09-21
DK1225568T3 (da) 2003-11-24
FR2730336B1 (fr) 1997-08-14
PT1225568E (pt) 2004-01-30
MY119038A (en) 2005-03-31
FI118396B (fi) 2007-10-31
EP1225568A1 (en) 2002-07-24
CN1181150A (zh) 1998-05-06
CN1410970A (zh) 2003-04-16
DK0808496T3 (da) 2003-04-22
IN187453B (es) 2002-04-27
ITUD960012A1 (it) 1997-08-02
FI20020320A (fi) 2002-02-18
DE19604273C5 (de) 2004-05-27
NO973472D0 (no) 1997-07-28
JPH10513571A (ja) 1998-12-22
JP4187556B2 (ja) 2008-11-26
BR9607026A (pt) 1997-11-04
GB2297671A (en) 1996-08-07
MY130529A (en) 2007-06-29
DE19604273C2 (de) 2000-06-29
ATE230888T1 (de) 2003-01-15
AR000871A1 (es) 1997-08-06
CA2210765C (en) 2001-08-21
FI117994B (fi) 2007-05-15
JP2003308100A (ja) 2003-10-31
FR2730336A1 (fr) 1996-08-09
KR19980701975A (ko) 1998-06-25
CA2210765A1 (en) 1996-08-15
IT1305724B1 (it) 2001-05-15
FI973241A (fi) 1997-10-06
NO318595B1 (no) 2005-04-18
ES2112807B1 (es) 1999-04-16
GB9602391D0 (en) 1996-04-03
GB2297671B (en) 2000-01-19
ITUD960012A0 (it) 1996-02-02
AU4479696A (en) 1996-08-27
SE9600437D0 (sv) 1996-02-06
WO1996024925A1 (en) 1996-08-15
FI973241A0 (fi) 1997-08-06
DE19604273A1 (de) 1996-08-29
HK1002492A1 (en) 1998-08-28
AU708392B2 (en) 1999-08-05
CN1198262C (zh) 2005-04-20
MX9705997A (es) 1997-11-29
KR100388751B1 (ko) 2003-11-28
RU2142166C1 (ru) 1999-11-27

Similar Documents

Publication Publication Date Title
ES2112807A1 (es) Codigo algebraico cifrado con amplitudes de impulso seleccionados por señal para la codificacion rapida de voz.
CA2186433A1 (en) Speech coding apparatus having amplitude information set to correspond with position information
GB2299001B (en) Digital encoding of sound signals
CA2115610A1 (en) Stereo Voice Transmission Apparatus, Echo Canceler, and Voice Input/Output Apparatus to Which This Echo Canceler is Applied
CA2202825A1 (en) Speech coder
CA2174223A1 (en) Signal-Analysis Device with at Least One Tensioned String and a Receiver
CA2231925A1 (en) Speech coding method
CA2175264A1 (en) Improved codebook searching techniques
DE59009152D1 (de) Verfahren zur Fernsteuerung eines Hörhilfegerätes.
CA2102080A1 (en) Time Shifting for Generalized Analysis-by-Synthesis Coding
DE69421595T2 (de) Spracherkennung unter Anwendung von Biosignalen
CA2239672A1 (en) Speech coder for high quality at low bit rates
CA2618002A1 (en) Algebraic codebook with signal-selected pulse amplitudes for fast coding of speech
CA2232977A1 (en) Speech signal coder
EP0388636A3 (de) Trefferkontrolle für die Lithotripsie
ZA96852B (en) Algebraic codebook with signal-selected pulse amplitudes for fast coding of speech
JPS6454499A (en) Pulse searching for multi-pulse voice encoding
TW338867B (en) Echo elimination method and equipment by the audition effect

Legal Events

Date Code Title Description
EC2A Search report published

Date of ref document: 19980401

Kind code of ref document: A1

Effective date: 19980401

FD2A Announcement of lapse in spain

Effective date: 20160526