BR0208584A - Método para formação de parâmetros de reconhecimento de fala - Google Patents

Método para formação de parâmetros de reconhecimento de fala

Info

Publication number
BR0208584A
BR0208584A BR0208584-4A BR0208584A BR0208584A BR 0208584 A BR0208584 A BR 0208584A BR 0208584 A BR0208584 A BR 0208584A BR 0208584 A BR0208584 A BR 0208584A
Authority
BR
Brazil
Prior art keywords
speech recognition
low frequency
recognition parameters
speech
noise reduction
Prior art date
Application number
BR0208584-4A
Other languages
English (en)
Other versions
BRPI0208584B1 (pt
Inventor
Dusan Macho
Yan Ming Cheng
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of BR0208584A publication Critical patent/BR0208584A/pt
Publication of BRPI0208584B1 publication Critical patent/BRPI0208584B1/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
    • G10L15/00—Speech recognition
    • G10L15/02—Feature extraction for speech recognition; Selection of recognition unit
    • 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
    • G10L15/00—Speech recognition
    • G10L15/28—Constructional details of speech recognition systems
    • G10L15/30—Distributed recognition, e.g. in client-server systems, for mobile phones or network applications
    • 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
    • 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
    • G10L25/18—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 spectral information of each sub-band

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Computational Linguistics (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)
  • Analogue/Digital Conversion (AREA)
  • Telephone Function (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

,"MéTODO PARA FORMAçãO DE PARâMETROS DE RECONHECIMENTO DE FALA". Uma extremidade frontal de caracterização de amostra de voz adequado para utilização em um contexto de reconhecimento de fala distribuída. Uma amostra de voz digitalizada (31) é subdividida entre uma via de baixa freq³ência (32) e uma via de alta freq³ência (33). Ambas as vias são utilizadas para determinar o conteúdo espectral adequado para utilização quando da determinação dos parâmetros de reconhecimento de fala (como os coeficientes espectrais) que caracterizam a amostra de fala para fins de reconhecimento. A via de baixa freq³ência (32) tem uma capacidade de redução de ruído completa. Em uma versão, os resultados desta redução de ruído são utilizadas pela via de alta freq³ência (33) para auxiliar na retirada do ruído sem exigir o mesmo nível de capacidade de recursos que o utilizado pela via de baixa freq³ência (32).
BRPI0208584A 2002-01-30 2002-12-18 método para formação de parâmetros de reconhecimento de fala BRPI0208584B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/061,048 US6678656B2 (en) 2002-01-30 2002-01-30 Noise reduced speech recognition parameters
PCT/US2002/040530 WO2003065351A1 (en) 2002-01-30 2002-12-18 Method for formation of speech recognition parameters

Publications (2)

Publication Number Publication Date
BR0208584A true BR0208584A (pt) 2004-12-28
BRPI0208584B1 BRPI0208584B1 (pt) 2017-01-24

Family

ID=27610131

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0208584A BRPI0208584B1 (pt) 2002-01-30 2002-12-18 método para formação de parâmetros de reconhecimento de fala

Country Status (5)

Country Link
US (1) US6678656B2 (pt)
CN (1) CN1308910C (pt)
BR (1) BRPI0208584B1 (pt)
GB (1) GB2390466B (pt)
WO (1) WO2003065351A1 (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG97885A1 (en) * 2000-05-05 2003-08-20 Univ Nanyang Noise canceler system with adaptive cross-talk filters
KR100366057B1 (ko) * 2000-06-26 2002-12-27 한국과학기술원 인간 청각 모델을 이용한 효율적인 음성인식 장치
JP2003216183A (ja) * 2002-01-25 2003-07-30 Sony Corp 情報検索方法及び装置
US7089178B2 (en) * 2002-04-30 2006-08-08 Qualcomm Inc. Multistream network feature processing for a distributed speech recognition system
JP4497911B2 (ja) * 2003-12-16 2010-07-07 キヤノン株式会社 信号検出装置および方法、ならびにプログラム
US8112247B2 (en) 2006-03-24 2012-02-07 International Business Machines Corporation Resource adaptive spectrum estimation of streaming data
CN101303854B (zh) * 2007-05-10 2011-11-16 摩托罗拉移动公司 用于提供识别的语音输出的方法
JP2014145838A (ja) * 2013-01-28 2014-08-14 Honda Motor Co Ltd 音響処理装置及び音響処理方法
CN103390403B (zh) * 2013-06-19 2015-11-25 北京百度网讯科技有限公司 Mfcc特征的提取方法及装置
CN106885971B (zh) * 2017-03-06 2020-07-03 西安电子科技大学 一种用于电缆故障检测定点仪的智能背景降噪方法
US11170799B2 (en) * 2019-02-13 2021-11-09 Harman International Industries, Incorporated Nonlinear noise reduction system
KR20220114365A (ko) * 2021-02-08 2022-08-17 라인플러스 주식회사 풀 밴드 신호의 노이즈 제거 방법 및 장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630305A (en) * 1985-07-01 1986-12-16 Motorola, Inc. Automatic gain selector for a noise suppression system
JP3189401B2 (ja) * 1992-07-29 2001-07-16 ソニー株式会社 音声データ符号化方法及び音声データ符号化装置
US5583961A (en) * 1993-03-25 1996-12-10 British Telecommunications Public Limited Company Speaker recognition using spectral coefficients normalized with respect to unequal frequency bands
US6216103B1 (en) * 1997-10-20 2001-04-10 Sony Corporation Method for implementing a speech recognition system to determine speech endpoints during conditions with background noise
US6513004B1 (en) * 1999-11-24 2003-01-28 Matsushita Electric Industrial Co., Ltd. Optimized local feature extraction for automatic speech recognition

Also Published As

Publication number Publication date
GB2390466B (en) 2005-07-20
GB0323166D0 (en) 2003-11-05
US6678656B2 (en) 2004-01-13
BRPI0208584B1 (pt) 2017-01-24
CN1500260A (zh) 2004-05-26
US20030144834A1 (en) 2003-07-31
CN1308910C (zh) 2007-04-04
WO2003065351A1 (en) 2003-08-07
GB2390466A (en) 2004-01-07

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Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved

Owner name: MOTOROLA SOLUTIONS, INC. (US)

B25A Requested transfer of rights approved

Owner name: MOTOROLA MOBILITY, INC. (US)

B25G Requested change of headquarter approved

Owner name: MOTOROLA MOBILITY, INC. (US)

B25E Requested change of name of applicant rejected

Owner name: MOTOROLA MOBILITY, INC. (US)

Free format text: INDEFERIDA A ALTERACAO DE NOME SOLICITADA ATRAVES DA PETICAO NO 020130025966-RJ, DE 28/03/2013, UMA VEZ QUE NAO FOI PAGA A RESPECTIVA TAXA DE RETRIBUICAO.

B25D Requested change of name of applicant approved

Owner name: MOTOROLA MOBILITY LLC (US)

B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B25A Requested transfer of rights approved

Owner name: GOOGLE TECHNOLOGY HOLDINGS LLC (US)

B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 24/01/2017, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 18A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2610 DE 12-01-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.