BRPI0812756A8 - Sistema de redução intelegiente de gradiente de ruído - Google Patents

Sistema de redução intelegiente de gradiente de ruído

Info

Publication number
BRPI0812756A8
BRPI0812756A8 BRPI0812756A BRPI0812756A BRPI0812756A8 BR PI0812756 A8 BRPI0812756 A8 BR PI0812756A8 BR PI0812756 A BRPI0812756 A BR PI0812756A BR PI0812756 A BRPI0812756 A BR PI0812756A BR PI0812756 A8 BRPI0812756 A8 BR PI0812756A8
Authority
BR
Brazil
Prior art keywords
speech
gradient
activity
noise
reduction system
Prior art date
Application number
BRPI0812756A
Other languages
English (en)
Inventor
A Zurek Robert
A Clark Joel
Original Assignee
Motorola Inc
Motorola Solutions Inc
Motorola Mobility 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, Motorola Solutions Inc, Motorola Mobility Inc filed Critical Motorola Inc
Publication of BRPI0812756A2 publication Critical patent/BRPI0812756A2/pt
Publication of BRPI0812756A8 publication Critical patent/BRPI0812756A8/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
    • 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
    • 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
    • G10L25/84—Detection of presence or absence of voice signals for discriminating voice from noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Telephone Function (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

SISTEMA DE REDUÇÃO INTELIGENTE DE RUÍDO GRADIENTE. É provido um sistema inteligente de redução de ruído (100). O sistema pode incluir um microfone gradiente (110) para produzir um sinal de fala gradiente, uma unidade de correção (116) para desenfatizar um ganho de alta frequência transmitido pelo microfone gradiente, um Detector de Atividade de Voz (120) (VAD) para determinar porções da atividade de fala (701) e porções da atividade de ruído (702) no sinal de fala gradiente, uma unidade de Controle de Ganho Automático (130) (AGC) para adaptar um ganho de fala (740) do sinal de fala gradiente para minimizar as variações nos níveis de sinal de fala, e um controlador (140) para controlar o ganho de fala aplicado pelo AGC às porções da atividade de ruído para preservar uma relação de nível de fala/ruído entre atividade de fala e atividade de ruído no sinal de fala gradiente.
BRPI0812756A 2007-07-02 2008-06-27 Sistema de redução intelegiente de gradiente de ruído BRPI0812756A8 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/772,670 US20090010453A1 (en) 2007-07-02 2007-07-02 Intelligent gradient noise reduction system
PCT/US2008/068516 WO2009006270A1 (en) 2007-07-02 2008-06-27 Intelligent gradient noise reduction system

Publications (2)

Publication Number Publication Date
BRPI0812756A2 BRPI0812756A2 (pt) 2014-12-23
BRPI0812756A8 true BRPI0812756A8 (pt) 2015-12-01

Family

ID=39769318

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0812756A BRPI0812756A8 (pt) 2007-07-02 2008-06-27 Sistema de redução intelegiente de gradiente de ruído

Country Status (7)

Country Link
US (1) US20090010453A1 (pt)
EP (1) EP2174317A1 (pt)
KR (1) KR20100037062A (pt)
CN (1) CN101689373A (pt)
BR (1) BRPI0812756A8 (pt)
RU (1) RU2461081C2 (pt)
WO (1) WO2009006270A1 (pt)

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090150144A1 (en) * 2007-12-10 2009-06-11 Qnx Software Systems (Wavemakers), Inc. Robust voice detector for receive-side automatic gain control
US8229126B2 (en) * 2009-03-13 2012-07-24 Harris Corporation Noise error amplitude reduction
US8989399B2 (en) * 2009-04-14 2015-03-24 Lloyd Baggs Innovations, Llc Reflection cancelling boundary microphones and amplification systems incorporating reflection cancelling boundary microphones
GB0919672D0 (en) * 2009-11-10 2009-12-23 Skype Ltd Noise suppression
GB0919673D0 (en) * 2009-11-10 2009-12-23 Skype Ltd Gain control for an audio signal
CN102771162A (zh) * 2009-12-01 2012-11-07 诺基亚公司 提供用于有效扫描和会话建立的架构的方法和装置
TWI459828B (zh) * 2010-03-08 2014-11-01 Dolby Lab Licensing Corp 在多頻道音訊中決定語音相關頻道的音量降低比例的方法及系統
US8447595B2 (en) * 2010-06-03 2013-05-21 Apple Inc. Echo-related decisions on automatic gain control of uplink speech signal in a communications device
US8300845B2 (en) 2010-06-23 2012-10-30 Motorola Mobility Llc Electronic apparatus having microphones with controllable front-side gain and rear-side gain
US8638951B2 (en) 2010-07-15 2014-01-28 Motorola Mobility Llc Electronic apparatus for generating modified wideband audio signals based on two or more wideband microphone signals
US8433076B2 (en) 2010-07-26 2013-04-30 Motorola Mobility Llc Electronic apparatus for generating beamformed audio signals with steerable nulls
US8983833B2 (en) * 2011-01-24 2015-03-17 Continental Automotive Systems, Inc. Method and apparatus for masking wind noise
GB2491173A (en) * 2011-05-26 2012-11-28 Skype Setting gain applied to an audio signal based on direction of arrival (DOA) information
GB2493327B (en) 2011-07-05 2018-06-06 Skype Processing audio signals
US8743157B2 (en) 2011-07-14 2014-06-03 Motorola Mobility Llc Audio/visual electronic device having an integrated visual angular limitation device
US9537460B2 (en) * 2011-07-22 2017-01-03 Continental Automotive Systems, Inc. Apparatus and method for automatic gain control
GB2495131A (en) 2011-09-30 2013-04-03 Skype A mobile device includes a received-signal beamformer that adapts to motion of the mobile device
GB2495129B (en) 2011-09-30 2017-07-19 Skype Processing signals
GB2495278A (en) 2011-09-30 2013-04-10 Skype Processing received signals from a range of receiving angles to reduce interference
GB2495472B (en) 2011-09-30 2019-07-03 Skype Processing audio signals
GB2495130B (en) 2011-09-30 2018-10-24 Skype Processing audio signals
GB2495128B (en) 2011-09-30 2018-04-04 Skype Processing signals
GB2496660B (en) 2011-11-18 2014-06-04 Skype Processing audio signals
GB201120392D0 (en) 2011-11-25 2012-01-11 Skype Ltd Processing signals
GB2497343B (en) 2011-12-08 2014-11-26 Skype Processing audio signals
US9648421B2 (en) 2011-12-14 2017-05-09 Harris Corporation Systems and methods for matching gain levels of transducers
CN107978325B (zh) * 2012-03-23 2022-01-11 杜比实验室特许公司 语音通信方法和设备、操作抖动缓冲器的方法和设备
US20130329908A1 (en) * 2012-06-08 2013-12-12 Apple Inc. Adjusting audio beamforming settings based on system state
US20140278389A1 (en) * 2013-03-12 2014-09-18 Motorola Mobility Llc Method and Apparatus for Adjusting Trigger Parameters for Voice Recognition Processing Based on Noise Characteristics
US9438994B2 (en) 2013-01-23 2016-09-06 Lloyd Baggs Innovations, Llc Instrument amplification systems incorporating reflection cancelling boundary microphones and multiband compression
US9660336B2 (en) * 2013-02-07 2017-05-23 Kevan ANDERSON Systems, devices and methods for transmitting electrical signals through a faraday cage
GB201401689D0 (en) 2014-01-31 2014-03-19 Microsoft Corp Audio signal processing
US9520851B2 (en) * 2014-06-26 2016-12-13 Kirusa, Inc. Predictive automatic gain control in a media processing system
US9628910B2 (en) 2015-07-15 2017-04-18 Motorola Mobility Llc Method and apparatus for reducing acoustic feedback from a speaker to a microphone in a communication device
CN106373586B (zh) * 2015-07-24 2020-03-17 南宁富桂精密工业有限公司 噪声滤除电路
US9401158B1 (en) * 2015-09-14 2016-07-26 Knowles Electronics, Llc Microphone signal fusion
US11081124B2 (en) * 2016-12-30 2021-08-03 Harman Becker Automotive Systems Gmbh Acoustic echo canceling
WO2018217059A1 (en) * 2017-05-25 2018-11-29 Samsung Electronics Co., Ltd. Method and electronic device for managing loudness of audio signal
US10109292B1 (en) * 2017-06-03 2018-10-23 Apple Inc. Audio systems with active feedback acoustic echo cancellation
WO2019012587A1 (ja) * 2017-07-10 2019-01-17 ヤマハ株式会社 ゲイン調整装置、遠隔会話装置、ゲイン調整方法、およびゲイン調整プログラム
RU2721188C2 (ru) * 2017-12-14 2020-05-18 Общество с ограниченной ответственностью "Аби Продакшн" Улучшение контраста и снижение шума на изображениях, полученных с камер
JP7006431B2 (ja) * 2018-03-23 2022-01-24 株式会社Ｊｖｃケンウッド 受信機及びプログラム
JP7006432B2 (ja) * 2018-03-23 2022-01-24 株式会社Ｊｖｃケンウッド 受信機及びプログラム
US11475888B2 (en) * 2018-04-29 2022-10-18 Dsp Group Ltd. Speech pre-processing in a voice interactive intelligent personal assistant
CN109841223B (zh) * 2019-03-06 2020-11-24 深圳大学 一种音频信号处理方法、智能终端及存储介质
TWI822030B (zh) * 2022-05-05 2023-11-11 律芯科技股份有限公司 雜訊整型式數位自動增益控制系統

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5715597A (en) * 1980-07-02 1982-01-26 Nippon Gakki Seizo Kk Microphone device
US5471527A (en) * 1993-12-02 1995-11-28 Dsc Communications Corporation Voice enhancement system and method
US5473684A (en) * 1994-04-21 1995-12-05 At&T Corp. Noise-canceling differential microphone assembly
US5841385A (en) * 1996-09-12 1998-11-24 Advanced Micro Devices, Inc. System and method for performing combined digital/analog automatic gain control for improved clipping suppression
WO1998058448A1 (en) * 1997-06-16 1998-12-23 Telefonaktiebolaget Lm Ericsson Method and apparatus for low complexity noise reduction
US6453291B1 (en) * 1999-02-04 2002-09-17 Motorola, Inc. Apparatus and method for voice activity detection in a communication system
US6604071B1 (en) * 1999-02-09 2003-08-05 At&T Corp. Speech enhancement with gain limitations based on speech activity
GB2355607B (en) * 1999-10-20 2002-01-16 Motorola Israel Ltd Digital speech processing system
AU2003223359A1 (en) * 2002-03-27 2003-10-13 Aliphcom Nicrophone and voice activity detection (vad) configurations for use with communication systems
US7155385B2 (en) * 2002-05-16 2006-12-26 Comerica Bank, As Administrative Agent Automatic gain control for adjusting gain during non-speech portions
ATE485583T1 (de) * 2005-08-02 2010-11-15 Koninkl Philips Electronics Nv Verbesserung der sprachverständlichkeit in einer mobilen kommunikationsvorrichtung durch steuern der funktion eines vibrators in abhängigkeit von dem hintergrundgeräusch
US7864969B1 (en) * 2006-02-28 2011-01-04 National Semiconductor Corporation Adaptive amplifier circuitry for microphone array
US7456677B1 (en) * 2006-05-01 2008-11-25 National Semiconductor Corporation Fractional gain circuit with switched capacitors and smoothed gain transitions for buck voltage regulation

Also Published As

Publication number Publication date
CN101689373A (zh) 2010-03-31
BRPI0812756A2 (pt) 2014-12-23
US20090010453A1 (en) 2009-01-08
RU2010103218A (ru) 2011-08-10
KR20100037062A (ko) 2010-04-08
RU2461081C2 (ru) 2012-09-10
EP2174317A1 (en) 2010-04-14
WO2009006270A1 (en) 2009-01-08

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Legal Events

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

Owner name: MOTOROLA SOLUTIONS, INC. (US)

B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 6A E 7A ANUIDADES.

B25A Requested transfer of rights approved

Owner name: MOTOROLA MOBILITY, INC. (US)

B25E Requested change of name of applicant rejected

Owner name: MOTOROLA MOBILITY, INC. (US)

Free format text: INDEFERIDO O PEDIDO DE ALTERACAO DE NOME CONTIDO NA PETICAO 20130041675 DE 16/05/2013, DEVIDO A AUSENCIA DE GUIA DE RECOLHIMENTO RELATIVA AO SERVICO.

B25G Requested change of headquarter approved

Owner name: MOTOROLA MOBILITY, INC. (US)

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2343 DE 01-12-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.