EP0992978A4 - Noise reduction device and a noise reduction method - Google Patents

Noise reduction device and a noise reduction method

Info

Publication number
EP0992978A4
EP0992978A4 EP98957196A EP98957196A EP0992978A4 EP 0992978 A4 EP0992978 A4 EP 0992978A4 EP 98957196 A EP98957196 A EP 98957196A EP 98957196 A EP98957196 A EP 98957196A EP 0992978 A4 EP0992978 A4 EP 0992978A4
Authority
EP
European Patent Office
Prior art keywords
noise reduction
reduction device
reduction method
noise
reduction
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP98957196A
Other languages
German (de)
French (fr)
Other versions
EP0992978A1 (en
Inventor
Kazutaka Tomita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP0992978A1 publication Critical patent/EP0992978A1/en
Publication of EP0992978A4 publication Critical patent/EP0992978A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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
    • G10L21/0232—Processing in the frequency domain
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
EP98957196A 1998-03-30 1998-12-07 Noise reduction device and a noise reduction method Withdrawn EP0992978A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP8417498 1998-03-30
JP8417498 1998-03-30
PCT/JP1998/005512 WO1999050825A1 (en) 1998-03-30 1998-12-07 Noise reduction device and a noise reduction method

Publications (2)

Publication Number Publication Date
EP0992978A1 EP0992978A1 (en) 2000-04-12
EP0992978A4 true EP0992978A4 (en) 2002-01-16

Family

ID=13823136

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98957196A Withdrawn EP0992978A4 (en) 1998-03-30 1998-12-07 Noise reduction device and a noise reduction method

Country Status (6)

Country Link
EP (1) EP0992978A4 (en)
KR (1) KR100314332B1 (en)
CN (1) CN1258368A (en)
AU (1) AU721270B2 (en)
CA (1) CA2291826A1 (en)
WO (1) WO1999050825A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4162604B2 (en) 2004-01-08 2008-10-08 株式会社東芝 Noise suppression device and noise suppression method
JP4423300B2 (en) * 2004-10-28 2010-03-03 富士通株式会社 Noise suppressor
JP4873913B2 (en) * 2004-12-17 2012-02-08 学校法人早稲田大学 Sound source separation system, sound source separation method, and acoustic signal acquisition apparatus
GB2422237A (en) * 2004-12-21 2006-07-19 Fluency Voice Technology Ltd Dynamic coefficients determined from temporally adjacent speech frames
JP4958303B2 (en) * 2005-05-17 2012-06-20 ヤマハ株式会社 Noise suppression method and apparatus
KR100686382B1 (en) 2005-07-08 2007-02-22 엔에이치엔(주) Messenger Notification System and Method Using Synchronization Server
CN1822092B (en) * 2006-03-28 2010-05-26 北京中星微电子有限公司 Method and its device for elliminating background noise in speech input
CN101166232B (en) * 2006-10-19 2010-05-12 华晶科技股份有限公司 Method for eliminating motor sound and digital image picking apparatus
JP5483000B2 (en) * 2007-09-19 2014-05-07 日本電気株式会社 Noise suppression device, method and program thereof
US20120143604A1 (en) * 2010-12-07 2012-06-07 Rita Singh Method for Restoring Spectral Components in Denoised Speech Signals
JP6182895B2 (en) 2012-05-01 2017-08-23 株式会社リコー Processing apparatus, processing method, program, and processing system
JP6216546B2 (en) * 2013-06-18 2017-10-18 パイオニア株式会社 Noise reduction device, broadcast reception device, and noise reduction method
JP2015206874A (en) 2014-04-18 2015-11-19 富士通株式会社 Signal processing device, signal processing method, and program
JP6687453B2 (en) * 2016-04-12 2020-04-22 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ Stereo playback device
JP6668995B2 (en) * 2016-07-27 2020-03-18 富士通株式会社 Noise suppression device, noise suppression method, and computer program for noise suppression
CN108831500B (en) * 2018-05-29 2023-04-28 平安科技（深圳）有限公司 Speech enhancement method, device, computer equipment and storage medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995015550A1 (en) * 1993-11-30 1995-06-08 At & T Corp. Transmitted noise reduction in communications systems

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8801014D0 (en) * 1988-01-18 1988-02-17 British Telecomm Noise reduction
US5710862A (en) * 1993-06-30 1998-01-20 Motorola, Inc. Method and apparatus for reducing an undesirable characteristic of a spectral estimate of a noise signal between occurrences of voice signals
DE69420705T2 (en) * 1993-12-06 2000-07-06 Koninkl Philips Electronics Nv SYSTEM AND DEVICE FOR NOISE REDUCTION AND MOBILE RADIO
JP3437264B2 (en) * 1994-07-07 2003-08-18 パナソニック モバイルコミュニケーションズ株式会社 Noise suppression device
SE505156C2 (en) * 1995-01-30 1997-07-07 Ericsson Telefon Ab L M Procedure for noise suppression by spectral subtraction
JP3451146B2 (en) * 1995-02-17 2003-09-29 株式会社日立製作所 Denoising system and method using spectral subtraction
JP3484801B2 (en) * 1995-02-17 2004-01-06 ソニー株式会社 Method and apparatus for reducing noise of audio signal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995015550A1 (en) * 1993-11-30 1995-06-08 At & T Corp. Transmitted noise reduction in communications systems

Also Published As

Publication number Publication date
WO1999050825A1 (en) 1999-10-07
EP0992978A1 (en) 2000-04-12
CN1258368A (en) 2000-06-28
CA2291826A1 (en) 1999-10-07
AU1352599A (en) 1999-10-18
KR20000076037A (en) 2000-12-26
KR100314332B1 (en) 2001-11-16
AU721270B2 (en) 2000-06-29

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