BR0312973A - Método para estimativa dinâmica rápida do ruìdo de fundo - Google Patents

Método para estimativa dinâmica rápida do ruìdo de fundo

Info

Publication number
BR0312973A
BR0312973A BR0312973-0A BR0312973A BR0312973A BR 0312973 A BR0312973 A BR 0312973A BR 0312973 A BR0312973 A BR 0312973A BR 0312973 A BR0312973 A BR 0312973A
Authority
BR
Brazil
Prior art keywords
voice
background noise
estimate
periodicity
periodicity indicator
Prior art date
Application number
BR0312973-0A
Other languages
English (en)
Inventor
Ali Behboodian
Pratik Desai
Chin Pan Wong
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 BR0312973A publication Critical patent/BR0312973A/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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • 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
    • G10L19/012—Comfort noise or silence coding
    • 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
    • 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
    • G10L2021/02168—Noise filtering characterised by the method used for estimating noise the estimation exclusively taking place during speech pauses

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Mathematical Physics (AREA)
  • Data Mining & Analysis (AREA)
  • Quality & Reliability (AREA)
  • Telephone Function (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)
  • Noise Elimination (AREA)

Abstract

"MéTODO PARA ESTIMATIVA DINâMICA RáPIDA DO RUìDO DE FUNDO". A invenção fornece um método e sistema para estimar dinamicamente o ruído de fundo. O sistema inclui um dispositivo de comunicação portátil, um codificador de voz (vocoder) e um detector ativado por voz. Com base em informação recebida pelo dispositivo de comunicação portátil, o codificador de voz determina parâmetros relacionados à informação de entrada, que inclui um modo de voz indicativo da periodicidade da informação de entrada. O detector ativado por voz então compara o modo de voz a um limite para determinar se uma estimativa de ruído de fundo deve ser atualizada. O método inclui as etapas de: receber um indicador de periodicidade e um nível de ruído de conforto atual para um quadro de voz de entrada; comparar o indicador de periodicidade com um limite predeterminado se o atual nível de ruído de conforto é igual a um nível anterior de ruído de conforto; e manter a estimativa de ruído de fundo se o indicador de periodicidade exceder o limite predeterminado e revisar a estimativa de ruído de fundo se o indicador de periodicidade não exceder o limite predeterminado.
BR0312973-0A 2002-07-26 2003-07-24 Método para estimativa dinâmica rápida do ruìdo de fundo BR0312973A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39857702P 2002-07-26 2002-07-26
PCT/US2003/023112 WO2004012097A1 (en) 2002-07-26 2003-07-24 Method for fast dynamic estimation of background noise

Publications (1)

Publication Number Publication Date
BR0312973A true BR0312973A (pt) 2005-08-09

Family

ID=31188420

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0312973-0A BR0312973A (pt) 2002-07-26 2003-07-24 Método para estimativa dinâmica rápida do ruìdo de fundo

Country Status (8)

Country Link
US (1) US7246059B2 (pt)
JP (1) JP2005534257A (pt)
KR (1) KR100848798B1 (pt)
CN (1) CN100504840C (pt)
AU (1) AU2003256724A1 (pt)
BR (1) BR0312973A (pt)
GB (1) GB2407241B (pt)
WO (1) WO2004012097A1 (pt)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7536298B2 (en) * 2004-03-15 2009-05-19 Intel Corporation Method of comfort noise generation for speech communication
US7123714B2 (en) * 2004-08-25 2006-10-17 Motorola, Inc. Speakerphone having improved outbound audio quality
KR100884425B1 (ko) 2004-08-25 2009-02-19 모토로라 인코포레이티드 외부 오디오 품질이 개선된 스피커폰을 제공하는 방법 및 전화
US7609981B2 (en) * 2005-09-07 2009-10-27 Alcatel-Lucent Usa Inc. Deliberate signal degradation for optimizing receiver control loops
US20070291693A1 (en) * 2006-06-14 2007-12-20 Motorola, Inc. Selective control of audio quality on a mobile station
US20080109217A1 (en) * 2006-11-08 2008-05-08 Nokia Corporation Method, Apparatus and Computer Program Product for Controlling Voicing in Processed Speech
US8656415B2 (en) * 2007-10-02 2014-02-18 Conexant Systems, Inc. Method and system for removal of clicks and noise in a redirected audio stream
CN101453532B (zh) * 2007-11-30 2013-03-20 博通集成电路（上海）有限公司 用于扬声器开关中的声音处理装置
CN101625860B (zh) * 2008-07-10 2012-07-04 新奥特（北京）视频技术有限公司 语音端点检测中的背景噪声自适应调整方法
PT2491559E (pt) * 2009-10-19 2015-05-07 Ericsson Telefon Ab L M Método e estimador de fundo para a detecção de actividade de voz
US8438023B1 (en) * 2011-09-30 2013-05-07 Google Inc. Warning a user when voice input to a device is likely to fail because of background or other noise
CN110265058B (zh) * 2013-12-19 2023-01-17 瑞典爱立信有限公司 估计音频信号中的背景噪声
US10283138B2 (en) 2016-10-03 2019-05-07 Google Llc Noise mitigation for a voice interface device
US10242696B2 (en) * 2016-10-11 2019-03-26 Cirrus Logic, Inc. Detection of acoustic impulse events in voice applications
US10475471B2 (en) * 2016-10-11 2019-11-12 Cirrus Logic, Inc. Detection of acoustic impulse events in voice applications using a neural network
US11024302B2 (en) * 2017-03-14 2021-06-01 Texas Instruments Incorporated Quality feedback on user-recorded keywords for automatic speech recognition systems
CN108270495B (zh) * 2018-01-29 2020-12-11 国家无线电监测中心乌鲁木齐监测站 一种背景噪声的提取方法及提取系统

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015088A (en) 1975-10-31 1977-03-29 Bell Telephone Laboratories, Incorporated Real-time speech analyzer
ATE43467T1 (de) * 1985-09-03 1989-06-15 Motorola Inc Radiotelephon mit freisprechbetrieb.
IL84948A0 (en) * 1987-12-25 1988-06-30 D S P Group Israel Ltd Noise reduction system
JPH0415088A (ja) * 1990-05-09 1992-01-20 Brother Ind Ltd ミシンの作動速度制御装置
US5537509A (en) * 1990-12-06 1996-07-16 Hughes Electronics Comfort noise generation for digital communication systems
US5410632A (en) * 1991-12-23 1995-04-25 Motorola, Inc. Variable hangover time in a voice activity detector
US5357567A (en) * 1992-08-14 1994-10-18 Motorola, Inc. Method and apparatus for volume switched gain control
US5504473A (en) 1993-07-22 1996-04-02 Digital Security Controls Ltd. Method of analyzing signal quality
US5485522A (en) * 1993-09-29 1996-01-16 Ericsson Ge Mobile Communications, Inc. System for adaptively reducing noise in speech signals
PL174216B1 (pl) * 1993-11-30 1998-06-30 At And T Corp Sposób redukcji w czasie rzeczywistym szumu transmisji mowy
JP3264822B2 (ja) * 1995-04-05 2002-03-11 三菱電機株式会社 移動体通信機器
US5677960A (en) * 1995-05-11 1997-10-14 Victor Company Of Japan, Ltd. On-vehicle sound control apparatus
GB9513419D0 (en) 1995-06-30 1995-09-06 Philips Electronics Uk Ltd Audio signal reproduction apparatus
US5949888A (en) * 1995-09-15 1999-09-07 Hughes Electronics Corporaton Comfort noise generator for echo cancelers
US5742694A (en) * 1996-07-12 1998-04-21 Eatwell; Graham P. Noise reduction filter
US6223154B1 (en) * 1998-07-31 2001-04-24 Motorola, Inc. Using vocoded parameters in a staggered average to provide speakerphone operation based on enhanced speech activity thresholds
US6556967B1 (en) * 1999-03-12 2003-04-29 The United States Of America As Represented By The National Security Agency Voice activity detector
US6766020B1 (en) * 2001-02-23 2004-07-20 3Com Corporation System and method for comfort noise generation
US7171357B2 (en) * 2001-03-21 2007-01-30 Avaya Technology Corp. Voice-activity detection using energy ratios and periodicity

Also Published As

Publication number Publication date
KR20050029241A (ko) 2005-03-24
KR100848798B1 (ko) 2008-07-28
AU2003256724A1 (en) 2004-02-16
CN1685336A (zh) 2005-10-19
GB2407241B (en) 2006-07-05
CN100504840C (zh) 2009-06-24
JP2005534257A (ja) 2005-11-10
GB2407241A (en) 2005-04-20
US20040137846A1 (en) 2004-07-15
WO2004012097A1 (en) 2004-02-05
GB0502504D0 (en) 2005-03-16
US7246059B2 (en) 2007-07-17

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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 0020130027071-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)

B25A Requested transfer of rights approved

Owner name: GOOGLE TECHNOLOGY HOLDINGS LLC (US)

B15K Others concerning applications: alteration of classification

Free format text: A CLASSIFICACAO ANTERIOR ERA: G06F 17/00

Ipc: H04B 7/26 (2006.01)

Ipc: H04B 7/26 (2006.01)

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B12B Appeal against refusal [chapter 12.2 patent gazette]