BRPI0406937A - Método e aparelho para supressão de ruìdo dentro de um sistema de reconhecimento de fala distribuìdo - Google Patents

Método e aparelho para supressão de ruìdo dentro de um sistema de reconhecimento de fala distribuìdo

Info

Publication number
BRPI0406937A
BRPI0406937A BR0406937-4A BRPI0406937A BRPI0406937A BR PI0406937 A BRPI0406937 A BR PI0406937A BR PI0406937 A BRPI0406937 A BR PI0406937A BR PI0406937 A BRPI0406937 A BR PI0406937A
Authority
BR
Brazil
Prior art keywords
noise suppression
recognition system
noise
speech recognition
filter bank
Prior art date
Application number
BR0406937-4A
Other languages
English (en)
Inventor
Tenkasi V Ramabadran
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 BRPI0406937A publication Critical patent/BRPI0406937A/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
    • G10L15/28—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
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband 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
    • 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

Landscapes

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

Abstract

"MéTODO E APARELHO PARA SUPRESSãO DE RUìDO DENTRO DE UM SISTEMA DE RECONHECIMENTO DE FALA DISTRIBUìDO". é aqui fornecido um método e um aparelho para a supressão de ruido dentro de um sistema de reconhecimento de fala distribuído. Valores dos coeficientes cepstrais de Mel-freq³ência (MFCCs) são convertidos para saídas de banco de filtro (F~ 0~ a F~ 12~). As saídas do banco de filtro são então utilizadas por um supressor de ruído (303) para estimação de energia de canal, estimação de energia de ruído, etc. A supressão do ruído ocorre em F<39>~ 0~ a F<39>~ 12~ e as emissões do banco de filtro de ruído suprimido F<39><39>~ 0~ a F<39>~ 12~ São convertidas de volta para valores de MFCC.
BR0406937-4A 2003-01-23 2004-01-20 Método e aparelho para supressão de ruìdo dentro de um sistema de reconhecimento de fala distribuìdo BRPI0406937A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/349,840 US20040148160A1 (en) 2003-01-23 2003-01-23 Method and apparatus for noise suppression within a distributed speech recognition system
PCT/US2004/001282 WO2004068893A2 (en) 2003-01-23 2004-01-20 Method and apparatus for noise suppression within a distributed speech recognition system

Publications (1)

Publication Number Publication Date
BRPI0406937A true BRPI0406937A (pt) 2006-01-03

Family

ID=32735461

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0406937-4A BRPI0406937A (pt) 2003-01-23 2004-01-20 Método e aparelho para supressão de ruìdo dentro de um sistema de reconhecimento de fala distribuìdo

Country Status (3)

Country Link
US (1) US20040148160A1 (pt)
BR (1) BRPI0406937A (pt)
WO (1) WO2004068893A2 (pt)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
US7386443B1 (en) * 2004-01-09 2008-06-10 At&T Corp. System and method for mobile automatic speech recognition
DE102004001863A1 (de) * 2004-01-13 2005-08-11 Siemens Ag Verfahren und Vorrichtung zur Bearbeitung eines Sprachsignals
EP2555190B1 (en) * 2005-09-02 2014-07-02 NEC Corporation Method, apparatus and computer program for suppressing noise
CN1897109B (zh) * 2006-06-01 2010-05-12 电子科技大学 一种基于mfcc的单一音频信号识别方法
CN101030369B (zh) * 2007-03-30 2011-06-29 清华大学 基于子词隐含马尔可夫模型的嵌入式语音识别方法
WO2009079469A1 (en) 2007-12-14 2009-06-25 Promptu Systems Corporation Automatic service vehicle hailing and dispatch system and method
US8185389B2 (en) * 2008-12-16 2012-05-22 Microsoft Corporation Noise suppressor for robust speech recognition
KR101624652B1 (ko) * 2009-11-24 2016-05-26 삼성전자주식회사 잡음 환경의 입력신호로부터 잡음을 제거하는 방법 및 그 장치, 잡음 환경에서 음성 신호를 강화하는 방법 및 그 장치
US8942975B2 (en) * 2010-11-10 2015-01-27 Broadcom Corporation Noise suppression in a Mel-filtered spectral domain
US8983833B2 (en) * 2011-01-24 2015-03-17 Continental Automotive Systems, Inc. Method and apparatus for masking wind noise
US8583425B2 (en) * 2011-06-21 2013-11-12 Genband Us Llc Methods, systems, and computer readable media for fricatives and high frequencies detection
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
CN107633842B (zh) * 2017-06-12 2018-08-31 平安科技（深圳）有限公司 语音识别方法、装置、计算机设备及存储介质
CN108694951B (zh) * 2018-05-22 2020-05-22 华南理工大学 一种基于多流分层融合变换特征和长短时记忆网络的说话人辨识方法
CN117388835B (zh) * 2023-12-13 2024-03-08 湖南赛能环测科技有限公司 一种多拼融合的声雷达信号增强方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4811404A (en) * 1987-10-01 1989-03-07 Motorola, Inc. Noise suppression system
US5687243A (en) * 1995-09-29 1997-11-11 Motorola, Inc. Noise suppression apparatus and method
GB2355834A (en) * 1999-10-29 2001-05-02 Nokia Mobile Phones Ltd Speech recognition
US6633839B2 (en) * 2001-02-02 2003-10-14 Motorola, Inc. Method and apparatus for speech reconstruction in a distributed speech recognition system
US7062433B2 (en) * 2001-03-14 2006-06-13 Texas Instruments Incorporated Method of speech recognition with compensation for both channel distortion and background noise

Also Published As

Publication number Publication date
WO2004068893A2 (en) 2004-08-12
WO2004068893A3 (en) 2004-09-30
US20040148160A1 (en) 2004-07-29

Similar Documents

Publication Publication Date Title
BRPI0406937A (pt) Método e aparelho para supressão de ruìdo dentro de um sistema de reconhecimento de fala distribuìdo
EP2136316A3 (en) Form recognition apparatus, method, database generation apparatus, method, and storage medium
FR2898209B1 (fr) Procede de debruitage d&#39;un signal audio
NZ562182A (en) Method and apparatus for anti-sparseness filtering of a bandwidth extended speech prediction excitation signal
ATE541287T1 (de) Rechnerisch effizienter hintergrundrauschunterdrücker für die sprachcodierung und spracherkennung
AU2003235782A8 (en) System and method for speech recognition by multi-pass recognition generating refined context specific grammars
FI20100431A7 (fi) Järjestelmä ja menetelmä häiriönpoiston mahdollistamiseksi käyttäen häiriönvähennyskäsittelyä
FI20080428A7 (fi) Järjestelmä ja menetelmä mikrofonien välisten tasoerojen käyttämiseksi puheen ehostamiseksi
WO2008038082A3 (en) Prosody conversion
DE60318471D1 (de) Extraktion von wissen mittels eines objektbasierten semantischen netzes
AU2001294974A1 (en) Perceptual harmonic cepstral coefficients as the front-end for speech recognition
WO2007115088A3 (en) A system and method for applying dynamic contextual grammars and language models to improve automatic speech recognition accuracy
EP2070079A4 (en) METHOD AND APPARATUS FOR LOCATING SPEECH KEYWORDS AND VOICE RECOGNITION SYSTEM
DE60123747D1 (de) Spracherkennungsbasiertes Untertitelungssystem
DK1804652T3 (da) System til implementering af et fysiologisk system
EP4300824A3 (en) Apparatus and method for generating time-domain audio samples
GB2405008A (en) Method and apparatus for adding advanced instructions in an extensible processor architecture
NO20075732L (no) Flersensorisk taleforbedring ved bruk av sannsynligheten for ren tale
DE602006014096D1 (de) Sprachverarbeitungsverfahren und -einrichtung, Speichermedium und Sprachsystem
TW200630958A (en) Method and device of speech recognition and language-understanding analysis and nature-language dialogue system using the method
Qadri et al. Voice controlled wheelchair using dsk tms320c6711
DE602005009091D1 (de) Erzeugen einer Spracherkennungsgrammatik für alphanumerische Ausdrücke
TW200710822A (en) Tone contour transformation of speech
WO2006040727A3 (en) A system and a method of processing audio data to generate reverberation
DE502005008657D1 (de) Vorrichtung zur Befestigung eines Bauteils an Mantelrohre unterschiedlichen Durchmessers

Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]