BR9806232A - Equalização cega dos efeitos de um canal de transmissão sobre um sinal de fala numérico - Google Patents

Equalização cega dos efeitos de um canal de transmissão sobre um sinal de fala numérico

Info

Publication number
BR9806232A
BR9806232A BR9806232A BR9806232A BR9806232A BR 9806232 A BR9806232 A BR 9806232A BR 9806232 A BR9806232 A BR 9806232A BR 9806232 A BR9806232 A BR 9806232A BR 9806232 A BR9806232 A BR 9806232A
Authority
BR
Brazil
Prior art keywords
effects
transmission channel
speech signal
blind equalization
numeric
Prior art date
Application number
BR9806232A
Other languages
English (en)
Inventor
Laurent Mauuary
Jean Monne
Original Assignee
France Telecom
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 France Telecom filed Critical France Telecom
Publication of BR9806232A publication Critical patent/BR9806232A/pt

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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure
    • H04L25/0307—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure using blind adaptation
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain
    • 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
    • G10L25/24—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 the cepstrum

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Radio Relay Systems (AREA)

Abstract

ALA NUMéRICO"<D>. A invenção refere-se a um processo e a um dispositivo de equalização cega dos efeim (1000) em vetores cepstrais ({C~ n~(i)}). Cada um dos vetores cepstrais é submetido a um filtragem adaptativa (1002), a partir de um cepstre de referes cepstrais equalizados ({<sym>(i)}) representatdentificação automática da fala.
BR9806232A 1997-07-22 1998-07-20 Equalização cega dos efeitos de um canal de transmissão sobre um sinal de fala numérico BR9806232A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9709273A FR2766604B1 (fr) 1997-07-22 1997-07-22 Procede et dispositif d'egalisation aveugle des effets d'un canal de transmission sur un signal de parole numerique
PCT/FR1998/001588 WO1999005831A1 (fr) 1997-07-22 1998-07-20 Procede et dispositif d'egalisation aveugle des effets d'un canal de transmission sur un signal de parole numerique

Publications (1)

Publication Number Publication Date
BR9806232A true BR9806232A (pt) 2000-03-21

Family

ID=9509462

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9806232A BR9806232A (pt) 1997-07-22 1998-07-20 Equalização cega dos efeitos de um canal de transmissão sobre um sinal de fala numérico

Country Status (12)

Country Link
US (1) US6157909A (pt)
EP (1) EP0932964B1 (pt)
JP (1) JP2001501327A (pt)
CN (1) CN1130057C (pt)
AU (1) AU751333B2 (pt)
BR (1) BR9806232A (pt)
CA (1) CA2266654C (pt)
DE (1) DE69838474T2 (pt)
ES (1) ES2294817T3 (pt)
FR (1) FR2766604B1 (pt)
HK (1) HK1021099A1 (pt)
WO (1) WO1999005831A1 (pt)

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Publication number Priority date Publication date Assignee Title
US6442221B1 (en) * 1998-09-22 2002-08-27 Zenith Electronics Corporation Ghost eliminating equalizer
US6292776B1 (en) * 1999-03-12 2001-09-18 Lucent Technologies Inc. Hierarchial subband linear predictive cepstral features for HMM-based speech recognition
US7725307B2 (en) 1999-11-12 2010-05-25 Phoenix Solutions, Inc. Query engine for processing voice based queries including semantic decoding
US7392185B2 (en) 1999-11-12 2008-06-24 Phoenix Solutions, Inc. Speech based learning/training system using semantic decoding
US7050977B1 (en) 1999-11-12 2006-05-23 Phoenix Solutions, Inc. Speech-enabled server for internet website and method
US9076448B2 (en) * 1999-11-12 2015-07-07 Nuance Communications, Inc. Distributed real time speech recognition system
US20020026253A1 (en) * 2000-06-02 2002-02-28 Rajan Jebu Jacob Speech processing apparatus
US7072833B2 (en) * 2000-06-02 2006-07-04 Canon Kabushiki Kaisha Speech processing system
US7010483B2 (en) * 2000-06-02 2006-03-07 Canon Kabushiki Kaisha Speech processing system
US7035790B2 (en) * 2000-06-02 2006-04-25 Canon Kabushiki Kaisha Speech processing system
US7532943B2 (en) * 2001-08-21 2009-05-12 Microsoft Corporation System and methods for providing automatic classification of media entities according to sonic properties
US7035873B2 (en) 2001-08-20 2006-04-25 Microsoft Corporation System and methods for providing adaptive media property classification
FR2819357B1 (fr) * 2001-01-09 2016-02-12 Thomson Csf Procede et recepteur autodidacte pour determiner les parametres spatio-temporels d'un canal de propagation
BRPI0101198B1 (pt) * 2001-03-02 2015-09-01 Unicamp Processo concorrente para desconvolução autodidata de sinais digitais
US7319954B2 (en) * 2001-03-14 2008-01-15 International Business Machines Corporation Multi-channel codebook dependent compensation
FR2822999B1 (fr) * 2001-03-28 2003-07-04 France Telecom Procede et dispositif de correction centralisee du timbre de la parole sur un reseau de communications telephoniques
US7941313B2 (en) * 2001-05-17 2011-05-10 Qualcomm Incorporated System and method for transmitting speech activity information ahead of speech features in a distributed voice recognition system
US7203643B2 (en) * 2001-06-14 2007-04-10 Qualcomm Incorporated Method and apparatus for transmitting speech activity in distributed voice recognition systems
US7035797B2 (en) * 2001-12-14 2006-04-25 Nokia Corporation Data-driven filtering of cepstral time trajectories for robust speech recognition
FR2848715B1 (fr) * 2002-12-11 2005-02-18 France Telecom Procede et systeme de correction multi-references des deformations spectrales de la voix introduites par un reseau de communication
US7027979B2 (en) * 2003-01-14 2006-04-11 Motorola, Inc. Method and apparatus for speech reconstruction within a distributed speech recognition system
JP2005249816A (ja) 2004-03-01 2005-09-15 Internatl Business Mach Corp <Ibm> 信号強調装置、方法及びプログラム、並びに音声認識装置、方法及びプログラム
WO2006106272A2 (fr) * 2005-04-07 2006-10-12 France Telecom Procede de synchronisation entre une operation de traitement de reconnaissance vocale et une action de declenchement du dit traitement
US9293130B2 (en) * 2008-05-02 2016-03-22 Nuance Communications, Inc. Method and system for robust pattern matching in continuous speech for spotting a keyword of interest using orthogonal matching pursuit
US20090287489A1 (en) * 2008-05-15 2009-11-19 Palm, Inc. Speech processing for plurality of users
US10149047B2 (en) * 2014-06-18 2018-12-04 Cirrus Logic Inc. Multi-aural MMSE analysis techniques for clarifying audio signals
KR102443637B1 (ko) * 2017-10-23 2022-09-16 삼성전자주식회사 네트워크 연결 정보에 기반하여 잡음 제어 파라미터를 결정하는 전자 장치 및 그의 동작 방법
CN110907933B (zh) * 2019-11-26 2022-12-27 西安空间无线电技术研究所 一种基于分布式的综合孔径相关处理***及方法
CN112233688B (zh) * 2020-09-24 2022-03-11 北京声智科技有限公司 音频降噪方法、装置、设备及介质

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5097509A (en) * 1990-03-28 1992-03-17 Northern Telecom Limited Rejection method for speech recognition
FR2722631B1 (fr) * 1994-07-13 1996-09-20 France Telecom Etablissement P Procede et systeme de filtrage adaptatif par egalisation aveugle d'un signal telephonique numerique et leurs applications
US5598505A (en) * 1994-09-30 1997-01-28 Apple Computer, Inc. Cepstral correction vector quantizer for speech recognition
US5812972A (en) * 1994-12-30 1998-09-22 Lucent Technologies Inc. Adaptive decision directed speech recognition bias equalization method and apparatus
US5806022A (en) * 1995-12-20 1998-09-08 At&T Corp. Method and system for performing speech recognition

Also Published As

Publication number Publication date
HK1021099A1 (en) 2000-05-26
DE69838474D1 (de) 2007-11-08
CN1130057C (zh) 2003-12-03
CN1234935A (zh) 1999-11-10
CA2266654C (fr) 2007-09-25
EP0932964B1 (fr) 2007-09-26
FR2766604A1 (fr) 1999-01-29
WO1999005831A1 (fr) 1999-02-04
EP0932964A1 (fr) 1999-08-04
DE69838474T2 (de) 2008-06-26
US6157909A (en) 2000-12-05
ES2294817T3 (es) 2008-04-01
FR2766604B1 (fr) 1999-10-01
AU751333B2 (en) 2002-08-15
CA2266654A1 (fr) 1999-02-04
AU8813398A (en) 1999-02-16
JP2001501327A (ja) 2001-01-30

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B15K Others concerning applications: alteration of classification

Free format text: ALTERADA A CLASSIFICACAO DE H04L 25/03 - G10L 3/02 PARA INT.CL.2010.01 G10L 21/02 - G10L 15/20 -H04L 25/03

Ipc: G10L 21/02 (2010.01), G10L 15/20 (2010.01), H04L 2

B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PEDIDO DE ACORDO COM BASE NO ART. 8OCOMBINADO COM O ART. 13O DA LPI.

B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL.