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WO2009038136A1 - 雑音抑圧装置、その方法及びプログラム - Google Patents

雑音抑圧装置、その方法及びプログラム Download PDF

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Publication number
WO2009038136A1
WO2009038136A1 PCT/JP2008/066871 JP2008066871W WO2009038136A1 WO 2009038136 A1 WO2009038136 A1 WO 2009038136A1 JP 2008066871 W JP2008066871 W JP 2008066871W WO 2009038136 A1 WO2009038136 A1 WO 2009038136A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
noise suppression
frequency region
region signal
suppression device
Prior art date
Application number
PCT/JP2008/066871
Other languages
English (en)
French (fr)
Inventor
Osamu Shimada
Original Assignee
Nec Corporation
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 Nec Corporation filed Critical Nec Corporation
Priority to EP08831525.4A priority Critical patent/EP2192579A4/en
Priority to JP2009533182A priority patent/JP5483000B2/ja
Priority to US12/678,975 priority patent/US20100207689A1/en
Publication of WO2009038136A1 publication Critical patent/WO2009038136A1/ja

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
    • 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
    • G10L21/0232—Processing in the frequency domain

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Noise Elimination (AREA)

Abstract

本発明は、入力信号を定められた第一のフレーム毎に周波数領域信号に変換する変換手段と、第一のフレームと異なるように第二のフレームを生成するフレーム生成手段と、第二のフレームに含まれる第一のフレームの周波数領域信号から代表周波数領域信号を生成する代表周波数領域信号生成手段と、代表周波数領域信号に基づいて、第二のフレームの雑音抑圧の程度を求める雑音抑制程度算出手段とを有することを特徴とする雑音抑圧装置である。
PCT/JP2008/066871 2007-09-19 2008-09-18 雑音抑圧装置、その方法及びプログラム WO2009038136A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08831525.4A EP2192579A4 (en) 2007-09-19 2008-09-18 NOISE SUPPRESSION DEVICE, ITS METHOD AND PROGRAM
JP2009533182A JP5483000B2 (ja) 2007-09-19 2008-09-18 雑音抑圧装置、その方法及びプログラム
US12/678,975 US20100207689A1 (en) 2007-09-19 2008-09-18 Noise suppression device, its method, and program

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007243001 2007-09-19
JP2007-243001 2007-09-19

Publications (1)

Publication Number Publication Date
WO2009038136A1 true WO2009038136A1 (ja) 2009-03-26

Family

ID=40467946

Family Applications (1)

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PCT/JP2008/066871 WO2009038136A1 (ja) 2007-09-19 2008-09-18 雑音抑圧装置、その方法及びプログラム

Country Status (4)

Country Link
US (1) US20100207689A1 (ja)
EP (1) EP2192579A4 (ja)
JP (1) JP5483000B2 (ja)
WO (1) WO2009038136A1 (ja)

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JP2012118464A (ja) * 2010-12-03 2012-06-21 Nikon Corp 音声処理装置、撮像装置、音声処理方法、及び音声処理プログラム
WO2012098579A1 (ja) * 2011-01-19 2012-07-26 三菱電機株式会社 雑音抑圧装置
WO2013032025A1 (ja) * 2011-08-29 2013-03-07 日本電気株式会社 信号処理装置、信号処理方法、およびコンピュータ・プログラム
JPWO2011111091A1 (ja) * 2010-03-09 2013-06-27 三菱電機株式会社 雑音抑圧装置
JPWO2012070668A1 (ja) * 2010-11-25 2014-05-19 日本電気株式会社 信号処理装置、信号処理方法、及び信号処理プログラム
JP2016524186A (ja) * 2013-06-10 2016-08-12 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン 分配量子化及び符号化を使用したオーディオ信号包絡の分割によるオーディオ信号包絡符号化、処理及び復号化の装置と方法
US9953659B2 (en) 2013-06-10 2018-04-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for audio signal envelope encoding, processing, and decoding by modelling a cumulative sum representation employing distribution quantization and coding
JP2019020527A (ja) * 2017-07-13 2019-02-07 株式会社メガチップス 電子メロディ特定装置、プログラム、及び電子メロディ特定方法

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US20090025004A1 (en) * 2007-07-16 2009-01-22 Microsoft Corporation Scheduling by Growing and Shrinking Resource Allocation
US9069610B2 (en) * 2010-10-13 2015-06-30 Microsoft Technology Licensing, Llc Compute cluster with balanced resources
US10149047B2 (en) * 2014-06-18 2018-12-04 Cirrus Logic Inc. Multi-aural MMSE analysis techniques for clarifying audio signals
US10043531B1 (en) 2018-02-08 2018-08-07 Omnivision Technologies, Inc. Method and audio noise suppressor using MinMax follower to estimate noise
US10043530B1 (en) * 2018-02-08 2018-08-07 Omnivision Technologies, Inc. Method and audio noise suppressor using nonlinear gain smoothing for reduced musical artifacts
TWI783215B (zh) * 2020-03-05 2022-11-11 緯創資通股份有限公司 信號處理系統及其信號降噪的判定方法與信號補償方法

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JP2003337594A (ja) * 2002-03-14 2003-11-28 Internatl Business Mach Corp <Ibm> 音声認識装置、その音声認識方法及びプログラム
JP2005284016A (ja) * 2004-03-30 2005-10-13 Iwatsu Electric Co Ltd 音声信号の雑音推定方法およびそれを用いた雑音除去装置
JP2006084974A (ja) * 2004-09-17 2006-03-30 Nissan Motor Co Ltd 音声入力装置
JP2007110532A (ja) * 2005-10-14 2007-04-26 Sharp Corp 騒音キャンセルヘッドフォン、及びそのフィードバックループゲインばらつき調整方法

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JP2000330587A (ja) * 1999-05-21 2000-11-30 Nec Corp 音声認識方法および装置
JP2003337594A (ja) * 2002-03-14 2003-11-28 Internatl Business Mach Corp <Ibm> 音声認識装置、その音声認識方法及びプログラム
JP2005284016A (ja) * 2004-03-30 2005-10-13 Iwatsu Electric Co Ltd 音声信号の雑音推定方法およびそれを用いた雑音除去装置
JP2006084974A (ja) * 2004-09-17 2006-03-30 Nissan Motor Co Ltd 音声入力装置
JP2007110532A (ja) * 2005-10-14 2007-04-26 Sharp Corp 騒音キャンセルヘッドフォン、及びそのフィードバックループゲインばらつき調整方法

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8989403B2 (en) 2010-03-09 2015-03-24 Mitsubishi Electric Corporation Noise suppression device
JPWO2011111091A1 (ja) * 2010-03-09 2013-06-27 三菱電機株式会社 雑音抑圧装置
JPWO2012070668A1 (ja) * 2010-11-25 2014-05-19 日本電気株式会社 信号処理装置、信号処理方法、及び信号処理プログラム
US9792925B2 (en) 2010-11-25 2017-10-17 Nec Corporation Signal processing device, signal processing method and signal processing program
JP2012118464A (ja) * 2010-12-03 2012-06-21 Nikon Corp 音声処理装置、撮像装置、音声処理方法、及び音声処理プログラム
WO2012098579A1 (ja) * 2011-01-19 2012-07-26 三菱電機株式会社 雑音抑圧装置
JP5265056B2 (ja) * 2011-01-19 2013-08-14 三菱電機株式会社 雑音抑圧装置
WO2013032025A1 (ja) * 2011-08-29 2013-03-07 日本電気株式会社 信号処理装置、信号処理方法、およびコンピュータ・プログラム
US10734008B2 (en) 2013-06-10 2020-08-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for audio signal envelope encoding, processing, and decoding by modelling a cumulative sum representation employing distribution quantization and coding
US9953659B2 (en) 2013-06-10 2018-04-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for audio signal envelope encoding, processing, and decoding by modelling a cumulative sum representation employing distribution quantization and coding
US10115406B2 (en) 2013-06-10 2018-10-30 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V Apparatus and method for audio signal envelope encoding, processing, and decoding by splitting the audio signal envelope employing distribution quantization and coding
JP2016524186A (ja) * 2013-06-10 2016-08-12 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン 分配量子化及び符号化を使用したオーディオ信号包絡の分割によるオーディオ信号包絡符号化、処理及び復号化の装置と方法
JP2019020527A (ja) * 2017-07-13 2019-02-07 株式会社メガチップス 電子メロディ特定装置、プログラム、及び電子メロディ特定方法
JP7025144B2 (ja) 2017-07-13 2022-02-24 株式会社メガチップス 電子メロディ特定装置、プログラム、及び電子メロディ特定方法

Also Published As

Publication number Publication date
EP2192579A1 (en) 2010-06-02
JPWO2009038136A1 (ja) 2011-01-06
US20100207689A1 (en) 2010-08-19
EP2192579A4 (en) 2016-06-08
JP5483000B2 (ja) 2014-05-07

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