ES2132189T3 - Aplicacion selectiva de tecnicas de codificacion de habla. - Google Patents

Aplicacion selectiva de tecnicas de codificacion de habla.

Info

Publication number
ES2132189T3
ES2132189T3 ES93305133T ES93305133T ES2132189T3 ES 2132189 T3 ES2132189 T3 ES 2132189T3 ES 93305133 T ES93305133 T ES 93305133T ES 93305133 T ES93305133 T ES 93305133T ES 2132189 T3 ES2132189 T3 ES 2132189T3
Authority
ES
Spain
Prior art keywords
discourse
speech
segments
speech information
coded
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
ES93305133T
Other languages
English (en)
Inventor
Willem Bastiaan Kleijn
Peter Kroon
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.)
AT&T Corp
Original Assignee
AT&T Corp
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 AT&T Corp filed Critical AT&T Corp
Application granted granted Critical
Publication of ES2132189T3 publication Critical patent/ES2132189T3/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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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
    • G10L19/097—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters using prototype waveform decomposition or prototype waveform interpolative [PWI] coders
    • 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
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

SE PRESENTA UN METODO DE CODIFICACION DE DISCURSO Y UN APARATO QUE APLICA SELECTIVAMENTE TECNICAS DE CODIFICACION DE DISCURSO A SEGMENTOS DE TIEMPO DE SEÑALES DE INFORMACION DE DISCURSO, TALES COMO POR EJEMPLO FORMAS DE ONDA DE CICLO DE PASO. UNA SEÑAL DE INFORMACION DE DISCURSO QUE COMPRENDE N SEGMENTOS DE SEÑAL SE CODIFICA CON UN PRIMER CODIFICADOR DE DISCURSO PARA PROPORCIONAR UNA PRIMERA REPRESENTACION CODIFICADA PARA CADA UNO DE LOS N SEGMENTOS DE SEÑAL. UNA SEGUNDA SEÑAL DE INFORMACION DE DISCURSO QUE REFLEJA LA INFORMACION DE DISCURSO NO CODIFICADA POR EL PRIMER CODIFICADOR ES DETERMINADA PARA CADA UNO DE UNO O MAS DE N SEGMENTOS DE SEÑAL. ADEMAS AL CODIFICAR LOS N PRIMEROS SEGMENTOS DE SEÑAL DE INFORMACION DE DISCURSO CON EL PRIMER CODIFICADOR DE DISCURSO, M DE LAS SEGUNDAS SEÑALES DE INFORMACION DE DISCURSO SON CODIFICADAS CON UN SEGUNDO CODIFICADOR DE DISCURSO, CUANDO 1 ES INFERIOR O IGUAL A M INFERIOR O IGUAL A N -1. LA COFICIACION SELECTIVA DE M DE LAS SEGUNDAS SEÑALES DE INFORMACION DE DISCURSO SE HACE EN RESPUESTA A CRITERIOS DE CODIFICACION. POR USO SELECTIVO DEL SEGUNDO CODIFICADOR DE DISCURSO, EL NUMERO DE BITIOS NECESARIOS PARA REPRESENTAR LA INFORMACION DE DISCURSO PUEDE SER REDUCIDO, O ALTERNATIVAMENTE, SE PUEDE OBTENER UNA MEJOR PRESTACION SIN REDUCIR EL NIVEL DE BITIO. EL PRIMER Y SEGUNDO CODIFICADOR DE DISCURSO PUEDEN SER CUALQUIERA DE LOS EXISTENTES.
ES93305133T 1992-07-10 1993-06-30 Aplicacion selectiva de tecnicas de codificacion de habla. Expired - Lifetime ES2132189T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/911,850 US5513297A (en) 1992-07-10 1992-07-10 Selective application of speech coding techniques to input signal segments

Publications (1)

Publication Number Publication Date
ES2132189T3 true ES2132189T3 (es) 1999-08-16

Family

ID=25430967

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93305133T Expired - Lifetime ES2132189T3 (es) 1992-07-10 1993-06-30 Aplicacion selectiva de tecnicas de codificacion de habla.

Country Status (5)

Country Link
US (1) US5513297A (es)
EP (1) EP0578436B1 (es)
JP (1) JP3266372B2 (es)
DE (1) DE69324732T2 (es)
ES (1) ES2132189T3 (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9408037D0 (en) * 1994-04-22 1994-06-15 Philips Electronics Uk Ltd Analogue signal coder
TW271524B (es) * 1994-08-05 1996-03-01 Qualcomm Inc
US5774846A (en) 1994-12-19 1998-06-30 Matsushita Electric Industrial Co., Ltd. Speech coding apparatus, linear prediction coefficient analyzing apparatus and noise reducing apparatus
US5751903A (en) * 1994-12-19 1998-05-12 Hughes Electronics Low rate multi-mode CELP codec that encodes line SPECTRAL frequencies utilizing an offset
JPH11513813A (ja) 1995-10-20 1999-11-24 アメリカ オンライン インコーポレイテッド 反復的な音の圧縮システム
US5839098A (en) 1996-12-19 1998-11-17 Lucent Technologies Inc. Speech coder methods and systems
DE19706516C1 (de) * 1997-02-19 1998-01-15 Fraunhofer Ges Forschung Verfahren und Vorricntungen zum Codieren von diskreten Signalen bzw. zum Decodieren von codierten diskreten Signalen
DE19729494C2 (de) 1997-07-10 1999-11-04 Grundig Ag Verfahren und Anordnung zur Codierung und/oder Decodierung von Sprachsignalen, insbesondere für digitale Diktiergeräte
US6044339A (en) * 1997-12-02 2000-03-28 Dspc Israel Ltd. Reduced real-time processing in stochastic celp encoding
US6230129B1 (en) * 1998-11-25 2001-05-08 Matsushita Electric Industrial Co., Ltd. Segment-based similarity method for low complexity speech recognizer
US20040098255A1 (en) * 2002-11-14 2004-05-20 France Telecom Generalized analysis-by-synthesis speech coding method, and coder implementing such method
US8712766B2 (en) * 2006-05-16 2014-04-29 Motorola Mobility Llc Method and system for coding an information signal using closed loop adaptive bit allocation
KR101390110B1 (ko) * 2007-02-22 2014-04-28 삼성전자주식회사 통신 시스템에서 신호 송수신 방법 및 장치
WO2008108081A1 (ja) * 2007-03-02 2008-09-12 Panasonic Corporation 適応音源ベクトル量子化装置および適応音源ベクトル量子化方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4876696A (en) * 1986-07-18 1989-10-24 Nec Corporation Transmission system for transmitting multifrequency signals or modem signals with speech signals
US5007093A (en) * 1987-04-03 1991-04-09 At&T Bell Laboratories Adaptive threshold voiced detector
NL8700985A (nl) * 1987-04-27 1988-11-16 Philips Nv Systeem voor sub-band codering van een digitaal audiosignaal.
US4910781A (en) * 1987-06-26 1990-03-20 At&T Bell Laboratories Code excited linear predictive vocoder using virtual searching
EP0342687B1 (en) * 1988-05-20 1995-04-12 Nec Corporation Coded speech communication system having code books for synthesizing small-amplitude components
EP0379587B1 (en) * 1988-06-08 1993-12-08 Fujitsu Limited Encoder/decoder apparatus
US4956871A (en) * 1988-09-30 1990-09-11 At&T Bell Laboratories Improving sub-band coding of speech at low bit rates by adding residual speech energy signals to sub-bands
CA2020084C (en) * 1989-06-29 1994-10-18 Kohei Iseda Voice coding/decoding system having selected coders and entropy coders
JPH0398318A (ja) * 1989-09-11 1991-04-23 Fujitsu Ltd 音声符号化方式
US5271089A (en) * 1990-11-02 1993-12-14 Nec Corporation Speech parameter encoding method capable of transmitting a spectrum parameter at a reduced number of bits
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
US5233660A (en) * 1991-09-10 1993-08-03 At&T Bell Laboratories Method and apparatus for low-delay celp speech coding and decoding

Also Published As

Publication number Publication date
US5513297A (en) 1996-04-30
EP0578436B1 (en) 1999-05-06
JP3266372B2 (ja) 2002-03-18
DE69324732D1 (de) 1999-06-10
EP0578436A1 (en) 1994-01-12
DE69324732T2 (de) 1999-10-07
JPH0683396A (ja) 1994-03-25

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