FI972852A - Menetelmä ja laite kohinan vaimentamiseksi viestintäjärjestelmässä - Google Patents

Menetelmä ja laite kohinan vaimentamiseksi viestintäjärjestelmässä Download PDF

Info

Publication number
FI972852A
FI972852A FI972852A FI972852A FI972852A FI 972852 A FI972852 A FI 972852A FI 972852 A FI972852 A FI 972852A FI 972852 A FI972852 A FI 972852A FI 972852 A FI972852 A FI 972852A
Authority
FI
Finland
Prior art keywords
communication system
noise compensation
compensation
noise
communication
Prior art date
Application number
FI972852A
Other languages
English (en)
Swedish (sv)
Other versions
FI972852A0 (fi
FI115582B (fi
Inventor
James P Ashley
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 FI972852A publication Critical patent/FI972852A/fi
Publication of FI972852A0 publication Critical patent/FI972852A0/fi
Application granted granted Critical
Publication of FI115582B publication Critical patent/FI115582B/fi

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B15/00Suppression or limitation of noise or interference
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00Speech 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
    • G10L21/02Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208Noise filtering

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)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
FI972852A 1995-11-13 1997-07-03 Menetelmä ja laite kohinan vaimentamiseksi viestintäjärjestelmässä FI115582B (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US55635895 1995-11-13
US08/556,358 US5659622A (en) 1995-11-13 1995-11-13 Method and apparatus for suppressing noise in a communication system
PCT/US1996/014270 WO1997018647A1 (en) 1995-11-13 1996-09-04 Method and apparatus for suppressing noise in a communication system
US9614270 1996-09-04

Publications (3)

Publication Number Publication Date
FI972852A true FI972852A (fi) 1997-07-03
FI972852A0 FI972852A0 (fi) 1997-07-03
FI115582B FI115582B (fi) 2005-05-31

Family

ID=24221022

Family Applications (1)

Application Number Title Priority Date Filing Date
FI972852A FI115582B (fi) 1995-11-13 1997-07-03 Menetelmä ja laite kohinan vaimentamiseksi viestintäjärjestelmässä

Country Status (17)

Country Link
US (1) US5659622A (fi)
JP (1) JP3842821B2 (fi)
KR (1) KR100286719B1 (fi)
CN (1) CN1075692C (fi)
AU (1) AU689403B2 (fi)
BR (1) BR9607249A (fi)
CA (1) CA2203917C (fi)
DE (1) DE19681070C2 (fi)
FI (1) FI115582B (fi)
FR (1) FR2741217B1 (fi)
GB (1) GB2313266B (fi)
HK (1) HK1005112A1 (fi)
HU (1) HU219255B (fi)
IL (1) IL119226A (fi)
RU (1) RU2169992C2 (fi)
SE (1) SE521679C2 (fi)
WO (1) WO1997018647A1 (fi)

Families Citing this family (86)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN184794B (fi) * 1993-09-14 2000-09-30 British Telecomm
SE505156C2 (sv) * 1995-01-30 1997-07-07 Ericsson Telefon Ab L M Förfarande för bullerundertryckning genom spektral subtraktion
FI100840B (fi) * 1995-12-12 1998-02-27 Nokia Mobile Phones Ltd Kohinanvaimennin ja menetelmä taustakohinan vaimentamiseksi kohinaises ta puheesta sekä matkaviestin
US5881091A (en) * 1996-02-05 1999-03-09 Hewlett-Packard Company Spread spectrum linearization for digitizing receivers
JPH09326844A (ja) * 1996-06-03 1997-12-16 Mitsubishi Electric Corp 騒音低減通話装置及び騒音低減通話方法
KR100250561B1 (ko) 1996-08-29 2000-04-01 니시무로 타이죠 잡음소거기 및 이 잡음소거기를 사용한 통신장치
US5937377A (en) * 1997-02-19 1999-08-10 Sony Corporation Method and apparatus for utilizing noise reducer to implement voice gain control and equalization
US6104993A (en) * 1997-02-26 2000-08-15 Motorola, Inc. Apparatus and method for rate determination in a communication system
JPH10247098A (ja) * 1997-03-04 1998-09-14 Mitsubishi Electric Corp 可変レート音声符号化方法、可変レート音声復号化方法
US5893056A (en) * 1997-04-17 1999-04-06 Northern Telecom Limited Methods and apparatus for generating noise signals from speech signals
FR2765715B1 (fr) * 1997-07-04 1999-09-17 Sextant Avionique Procede de recherche d'un modele de bruit dans des signaux sonores bruites
KR19990020369A (ko) * 1997-08-30 1999-03-25 윤종용 무선 사설교환시스템에서 노이즈 제거 방법
FR2768544B1 (fr) * 1997-09-18 1999-11-19 Matra Communication Procede de detection d'activite vocale
TW333610B (en) * 1997-10-16 1998-06-11 Winbond Electronics Corp The phonetic detecting apparatus and its detecting method
DE19747885B4 (de) * 1997-10-30 2009-04-23 Harman Becker Automotive Systems Gmbh Verfahren zur Reduktion von Störungen akustischer Signale mittels der adaptiven Filter-Methode der spektralen Subtraktion
US6070137A (en) * 1998-01-07 2000-05-30 Ericsson Inc. Integrated frequency-domain voice coding using an adaptive spectral enhancement filter
KR100510399B1 (ko) * 1998-02-17 2005-08-30 모토로라 인코포레이티드 고정 코드북내의 최적 벡터의 고속 결정 방법 및 장치
US6415253B1 (en) * 1998-02-20 2002-07-02 Meta-C Corporation Method and apparatus for enhancing noise-corrupted speech
US6073152A (en) * 1998-04-03 2000-06-06 Sarnoff Corporation Method and apparatus for filtering signals using a gamma delay line based estimation of power spectrum
US6088668A (en) * 1998-06-22 2000-07-11 D.S.P.C. Technologies Ltd. Noise suppressor having weighted gain smoothing
US6122610A (en) * 1998-09-23 2000-09-19 Verance Corporation Noise suppression for low bitrate speech coder
KR100281181B1 (ko) * 1998-10-16 2001-02-01 윤종용 약전계에서 코드 분할 다중 접속 시스템의 코덱 잡음 제거 방법
US6424938B1 (en) * 1998-11-23 2002-07-23 Telefonaktiebolaget L M Ericsson Complex signal activity detection for improved speech/noise classification of an audio signal
US6873837B1 (en) 1999-02-03 2005-03-29 Matsushita Electric Industrial Co., Ltd. Emergency reporting system and terminal apparatus therein
US6453291B1 (en) * 1999-02-04 2002-09-17 Motorola, Inc. Apparatus and method for voice activity detection in a communication system
US6618701B2 (en) 1999-04-19 2003-09-09 Motorola, Inc. Method and system for noise suppression using external voice activity detection
DE19920819C1 (de) * 1999-05-06 2000-10-26 Bosch Gmbh Robert Verfahren und Vorrichtung zur Schätzung von gedächtnisbehafteten Übertragungskanälen
GB9912577D0 (en) * 1999-05-28 1999-07-28 Mitel Corp Method of detecting silence in a packetized voice stream
US6633841B1 (en) * 1999-07-29 2003-10-14 Mindspeed Technologies, Inc. Voice activity detection speech coding to accommodate music signals
WO2001011604A1 (en) * 1999-08-10 2001-02-15 Telogy Networks, Inc. Background energy estimation
US6581032B1 (en) * 1999-09-22 2003-06-17 Conexant Systems, Inc. Bitstream protocol for transmission of encoded voice signals
US6366880B1 (en) * 1999-11-30 2002-04-02 Motorola, Inc. Method and apparatus for suppressing acoustic background noise in a communication system by equaliztion of pre-and post-comb-filtered subband spectral energies
JP2003517761A (ja) * 1999-12-03 2003-05-27 モトローラ・インコーポレイテッド 通信システムにおける音響バックグラウンドノイズを抑制するための方法と装置
US6963546B2 (en) * 2000-03-15 2005-11-08 Interdigital Technology Corp. Multi-user detection using an adaptive combination of joint detection and successive interface cancellation
JP2001318694A (ja) * 2000-05-10 2001-11-16 Toshiba Corp 信号処理装置、信号処理方法および記録媒体
JP2002032096A (ja) 2000-07-18 2002-01-31 Matsushita Electric Ind Co Ltd 雑音区間/音声区間判定装置
JP4533517B2 (ja) * 2000-08-31 2010-09-01 株式会社東芝 信号処理方法および信号処理装置
US7277554B2 (en) 2001-08-08 2007-10-02 Gn Resound North America Corporation Dynamic range compression using digital frequency warping
DE60215547T2 (de) * 2002-01-25 2007-08-02 Koninklijke Philips Electronics N.V. Verfahren und einheit zur subtraktion des quantisierungsrauschen von einem pcm-signal
US7299173B2 (en) * 2002-01-30 2007-11-20 Motorola Inc. Method and apparatus for speech detection using time-frequency variance
RU2206960C1 (ru) * 2002-06-24 2003-06-20 Общество с ограниченной ответственностью "Центр речевых технологий" Способ подавления шума в информационном сигнале и устройство для его осуществления
US7283956B2 (en) * 2002-09-18 2007-10-16 Motorola, Inc. Noise suppression
US7343283B2 (en) * 2002-10-23 2008-03-11 Motorola, Inc. Method and apparatus for coding a noise-suppressed audio signal
US7809150B2 (en) * 2003-05-27 2010-10-05 Starkey Laboratories, Inc. Method and apparatus to reduce entrainment-related artifacts for hearing assistance systems
JPWO2005124739A1 (ja) * 2004-06-18 2008-04-17 松下電器産業株式会社 雑音抑圧装置および雑音抑圧方法
EP1808965B1 (en) * 2004-11-02 2011-02-16 Panasonic Corporation Noise suppresser
KR20060091970A (ko) * 2005-02-16 2006-08-22 엘지전자 주식회사 이동통신단말기에서의 신호 대 잡음비 개선 방법 및 그 이동통신단말기
US20060184363A1 (en) * 2005-02-17 2006-08-17 Mccree Alan Noise suppression
WO2006097886A1 (en) * 2005-03-16 2006-09-21 Koninklijke Philips Electronics N.V. Noise power estimation
ATE523874T1 (de) * 2005-03-24 2011-09-15 Mindspeed Tech Inc Adaptive stimmenmodus-erweiterung für einen stimmenaktivitäts-detektor
US7596099B2 (en) * 2005-08-22 2009-09-29 Motorola, Inc. Method and apparatus for managing a communication link
JP4172530B2 (ja) 2005-09-02 2008-10-29 日本電気株式会社 雑音抑圧の方法及び装置並びにコンピュータプログラム
US8233636B2 (en) * 2005-09-02 2012-07-31 Nec Corporation Method, apparatus, and computer program for suppressing noise
US8116473B2 (en) * 2006-03-13 2012-02-14 Starkey Laboratories, Inc. Output phase modulation entrainment containment for digital filters
US7555075B2 (en) * 2006-04-07 2009-06-30 Freescale Semiconductor, Inc. Adjustable noise suppression system
KR100883652B1 (ko) * 2006-08-03 2009-02-18 삼성전자주식회사 음성 구간 검출 방법 및 장치, 및 이를 이용한 음성 인식시스템
US8060363B2 (en) * 2007-02-13 2011-11-15 Nokia Corporation Audio signal encoding
US7873114B2 (en) * 2007-03-29 2011-01-18 Motorola Mobility, Inc. Method and apparatus for quickly detecting a presence of abrupt noise and updating a noise estimate
US7809129B2 (en) * 2007-08-31 2010-10-05 Motorola, Inc. Acoustic echo cancellation based on noise environment
KR101394104B1 (ko) * 2007-12-07 2014-05-13 에이저 시스템즈 엘엘시 통화대기 음악의 최종 사용자 제어
PL2410521T3 (pl) * 2008-07-11 2018-04-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Koder sygnału audio, sposób generowania sygnału audio i program komputerowy
MY154452A (en) 2008-07-11 2015-06-15 Fraunhofer Ges Forschung An apparatus and a method for decoding an encoded audio signal
CN101770776B (zh) 2008-12-29 2011-06-08 华为技术有限公司 瞬态信号的编码方法和装置、解码方法和装置及处理系统
WO2011044848A1 (zh) * 2009-10-15 2011-04-21 华为技术有限公司 信号处理的方法、装置和系统
CN102044241B (zh) 2009-10-15 2012-04-04 华为技术有限公司 一种实现通信系统中背景噪声的跟踪的方法和装置
CN102667927B (zh) * 2009-10-19 2013-05-08 瑞典爱立信有限公司 语音活动检测的方法和背景估计器
US9729976B2 (en) * 2009-12-22 2017-08-08 Starkey Laboratories, Inc. Acoustic feedback event monitoring system for hearing assistance devices
US8917891B2 (en) 2010-04-13 2014-12-23 Starkey Laboratories, Inc. Methods and apparatus for allocating feedback cancellation resources for hearing assistance devices
US9654885B2 (en) 2010-04-13 2017-05-16 Starkey Laboratories, Inc. Methods and apparatus for allocating feedback cancellation resources for hearing assistance devices
CN102376303B (zh) * 2010-08-13 2014-03-12 国基电子(上海)有限公司 录音设备及利用该录音设备进行声音处理与录入的方法
DK3493205T3 (da) 2010-12-24 2021-04-19 Huawei Tech Co Ltd Fremgangsmåde og indretning til adaptiv detektion af stemmeaktivitet i et lydindgangssignal
MY164797A (en) 2011-02-14 2018-01-30 Fraunhofer Ges Zur Foederung Der Angewandten Forschung E V Apparatus and method for processing a decoded audio signal in a spectral domain
CA2903681C (en) * 2011-02-14 2017-03-28 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Audio codec using noise synthesis during inactive phases
AR085794A1 (es) 2011-02-14 2013-10-30 Fraunhofer Ges Forschung Prediccion lineal basada en esquema de codificacion utilizando conformacion de ruido de dominio espectral
EP2661745B1 (en) 2011-02-14 2015-04-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for error concealment in low-delay unified speech and audio coding (usac)
CN102959620B (zh) 2011-02-14 2015-05-13 弗兰霍菲尔运输应用研究公司 利用重迭变换的信息信号表示
BR112013020700B1 (pt) 2011-02-14 2021-07-13 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Codificação e decodificação de posições de pulso de faixas de um sinal de áudio
RU2573231C2 (ru) 2011-02-14 2016-01-20 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Устройство и способ для кодирования части аудиосигнала с использованием обнаружения неустановившегося состояния и результата качества
JP5480226B2 (ja) * 2011-11-29 2014-04-23 株式会社東芝 信号処理装置および信号処理方法
US8712769B2 (en) * 2011-12-19 2014-04-29 Continental Automotive Systems, Inc. Apparatus and method for noise removal by spectral smoothing
US8712076B2 (en) 2012-02-08 2014-04-29 Dolby Laboratories Licensing Corporation Post-processing including median filtering of noise suppression gains
US9173025B2 (en) 2012-02-08 2015-10-27 Dolby Laboratories Licensing Corporation Combined suppression of noise, echo, and out-of-location signals
US10141003B2 (en) * 2014-06-09 2018-11-27 Dolby Laboratories Licensing Corporation Noise level estimation
GB201617016D0 (en) * 2016-09-09 2016-11-23 Continental automotive systems inc Robust noise estimation for speech enhancement in variable noise conditions
US10681458B2 (en) 2018-06-11 2020-06-09 Cirrus Logic, Inc. Techniques for howling detection
KR102242457B1 (ko) * 2019-08-08 2021-04-19 주식회사 에스원 Uwb 모듈레이션을 통한 노이즈 추정방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1216224B (it) * 1986-03-28 1990-02-22 Giuliani Marcello Complesso pneumatico per la pulitura e l'allontanamento di polveri, fibrille e cascami vari dalle carde laniere e cotoniere dell'industria tessile
US4811404A (en) * 1987-10-01 1989-03-07 Motorola, Inc. Noise suppression system
US5267322A (en) * 1991-12-13 1993-11-30 Digital Sound Corporation Digital automatic gain control with lookahead, adaptive noise floor sensing, and decay boost initialization
US5495555A (en) * 1992-06-01 1996-02-27 Hughes Aircraft Company High quality low bit rate celp-based speech codec
US5475686A (en) * 1992-12-28 1995-12-12 Motorola, Inc. Method and apparatus for transferring data in a communication system
IT1270438B (it) * 1993-06-10 1997-05-05 Sip Procedimento e dispositivo per la determinazione del periodo del tono fondamentale e la classificazione del segnale vocale in codificatori numerici della voce
DE69428119T2 (de) * 1993-07-07 2002-03-21 Picturetel Corp., Peabody Verringerung des hintergrundrauschens zur sprachverbesserung

Also Published As

Publication number Publication date
IL119226A0 (en) 1996-12-05
CN1168204A (zh) 1997-12-17
AU1758497A (en) 1997-06-05
US5659622A (en) 1997-08-19
WO1997018647A1 (en) 1997-05-22
FR2741217B1 (fr) 2004-08-20
GB2313266B (en) 2000-01-26
KR19980701399A (ko) 1998-05-15
JP3842821B2 (ja) 2006-11-08
AU689403B2 (en) 1998-03-26
GB9713727D0 (en) 1997-09-03
BR9607249A (pt) 1997-12-30
FI972852A0 (fi) 1997-07-03
FI115582B (fi) 2005-05-31
RU2169992C2 (ru) 2001-06-27
DE19681070C2 (de) 2002-10-24
HK1005112A1 (en) 1998-12-24
GB2313266A (en) 1997-11-19
SE9701659D0 (sv) 1997-05-02
SE521679C2 (sv) 2003-11-25
HU219255B (en) 2001-03-28
CA2203917C (en) 2000-06-27
CN1075692C (zh) 2001-11-28
JPH10513030A (ja) 1998-12-08
KR100286719B1 (ko) 2001-04-16
SE9701659L (sv) 1997-09-12
FR2741217A1 (fr) 1997-05-16
HUP9800843A2 (hu) 1998-07-28
HUP9800843A3 (en) 1999-03-29
DE19681070T1 (de) 1998-02-26
CA2203917A1 (en) 1997-05-14
IL119226A (en) 2000-10-31

Similar Documents

Publication Publication Date Title
FI972852A0 (fi) Menetelmä ja laite kohinan vaimentamiseksi viestintäjärjestelmässä
FI964292A0 (fi) Menetelmä ja laite viestintäyksikön synnyttämän häiriön lieventämiseksi viestintäjärjestelmässä
FI963245A0 (fi) Menetelmä ja laite häiriöiden lieventämiseksi viestintäjärjestelmässä
FI961404A0 (fi) Menetelmä ja laite tilaajan tunnistamiseksi viestintäjärjestelmässä
FI965195A (fi) Menetelmä ja laite tietoliikenteen kanavanvaihdon suorittamiseksi viestintäjärjestelmässä
FI950210A (fi) Menetelmä ja järjestely puheen siirtämiseksi radiojärjestelmässä
FI952404A0 (fi) Menetelmä ja laite tehon estimoimiseksi viestintäjärjestelmässä
FI950159A0 (fi) Menetelmä ja laite matkaviestinjärjestelmän kanavien käyttämisetä varten
FI953692A0 (fi) Menetelmä ja laite viestinnän suorittamiseksi alueelisten kokonaisuuksien yli viestintäjärjestelmässä
FI981265A0 (fi) Menetelmä ja laitteisto linkin toteuttamiseksi langattomassa tietoliikennejärjestelmässä
FI970437A (fi) Menetelmä ja piirijärjestely vastaanotettujen signaalien käsittelemiseksi tiedonsiirtojärjestelmässä
FI962326A0 (fi) Menetelmä ja laite viestinnän koherentiksi vastaanottamiseksi hajaspektriviestintäjärjestelmässä
FI955063A0 (fi) Menetelmä ja laite useiden hajotuskoodien käyttämiseksi viestintäjärjestelmässä
FI952518A0 (fi) Menetelmä ja laite signaalin laadun hallitsemiseksi CDMA-soluverkkopuhelinjärjestelmässä
FI961143A (fi) Menetelmä ja piirijärjestely vastaanotettujen signaalien käsittelemiseksi tiedonsiirtojärjestelmässä
FI951051A0 (fi) Menetelmä ja laite tiedon välittämiseksi digitaalisessa radiojärjestelmässä
FI961838A (fi) Menetelmä ja laite pakettien kohdistamiseksi viestintäjärjestelmässä
FI973851A0 (fi) Menetelmä ja laite adaptiivisen reitityksen suoritMenetelmä ja laite adaptiivisen reitityksen suorittamiseksi satelliitteihin perustuvassa viestintäjätamiseksi satelliitteihin perustuvassa viestintäjärjestelmässä rjestelmässä
FI965091A (fi) Laskentamenetelmä ja -laite
FI950890A0 (fi) Menetelmä ja järjestely toiminnallisuuden nopeaa muuttamista varten tietoliikennejärjestelmässä
FI970596A (fi) Menetelmä ja järjestely tiedonsiirtoparametrien asettamiseksi tiedonsiirtojärjestelmässä
FI981091A0 (fi) Menetelmä ja laitteisto kaiun poistamiseksi digitaalisessa matkaviestinjärjestelmässä
FI973584A (fi) Menetelmä ja järjestelmä yhteyden aikaansaamiseksi telekommunikaatioverkossa
FI964800A0 (fi) Menetelmä ja järjestelmä kehysten ajalliseksi kohdistamiseksi viestintäjärjestelmässä
FI954620A (fi) Menetelmä ja laite äänenlaadun huononemisen lieventämiseksi viestintäjärjestelmässä

Legal Events

Date Code Title Description
FG Patent granted

Ref document number: 115582

Country of ref document: FI

PC Transfer of assignment of patent

Owner name: MOTOROLA MOBILITY, INC.

Free format text: MOTOROLA MOBILITY, INC.

MA Patent expired
PC Transfer of assignment of patent

Owner name: GOOGLE TECHNOLOGY HOLDINGS LLC