WO2008123315A1 - 信号処理装置 - Google Patents

信号処理装置 Download PDF

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Publication number
WO2008123315A1
WO2008123315A1 PCT/JP2008/055757 JP2008055757W WO2008123315A1 WO 2008123315 A1 WO2008123315 A1 WO 2008123315A1 JP 2008055757 W JP2008055757 W JP 2008055757W WO 2008123315 A1 WO2008123315 A1 WO 2008123315A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
noise
processing unit
isolated
unit
Prior art date
Application number
PCT/JP2008/055757
Other languages
English (en)
French (fr)
Inventor
Hiroshi Saruwatari
Yoshimitsu Mori
Eiji Baba
Original Assignee
National University Corporation NARA Institute of Science and Technology
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 National University Corporation NARA Institute of Science and Technology filed Critical National University Corporation NARA Institute of Science and Technology
Priority to CN2008800106920A priority Critical patent/CN101653015B/zh
Priority to US12/593,928 priority patent/US8488806B2/en
Priority to KR1020097019745A priority patent/KR101452537B1/ko
Publication of WO2008123315A1 publication Critical patent/WO2008123315A1/ja

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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
    • G10L21/0272—Voice signal separating
    • G10L21/028—Voice signal separating using properties of sound source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Quality & Reliability (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Noise Elimination (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

　本発明は、複数の原信号が混合された混合信号から、対象となる原信号を良好に復元することができる信号処理装置を提供することを目的とする。分離信号生成部２０は、周波数領域に変換された１フレーム分の混合信号から、互いに独立した複数の分離信号を生成する。マスク処理部３０は、第１および第２分離信号に基づいて、周波数ビン毎に第１分離信号の雑音状況を判断する。またマスク処理部３０は、雑音状況の判断結果に基づいて求められた第１雑音成分を第１分離信号から除去する。雑音量計測部４０は、第１分離信号の雑音量を計測する。雑音信号選択部５０は、雑音量計測部４０によって計測された雑音量に基づいて、周波数便毎に雑音信号を選択する。雑音除去処理部６０は、周波数ビン毎に、マスク処理部３０より入力された雑音除去信号から第２雑音成分を除去する。雑音除去処理部６０は、第２雑音成分が除去された雑音除去信号を目的信号として出力する。
PCT/JP2008/055757 2007-03-30 2008-03-26 信号処理装置 WO2008123315A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2008800106920A CN101653015B (zh) 2007-03-30 2008-03-26 信号处理装置
US12/593,928 US8488806B2 (en) 2007-03-30 2008-03-26 Signal processing apparatus
KR1020097019745A KR101452537B1 (ko) 2007-03-30 2008-03-26 신호처리장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007092067A JP4950733B2 (ja) 2007-03-30 2007-03-30 信号処理装置
JP2007-092067 2007-03-30

Publications (1)

Publication Number Publication Date
WO2008123315A1 true WO2008123315A1 (ja) 2008-10-16

Family

ID=39830803

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/055757 WO2008123315A1 (ja) 2007-03-30 2008-03-26 信号処理装置

Country Status (5)

Country Link
US (1) US8488806B2 (ja)
JP (1) JP4950733B2 (ja)
KR (1) KR101452537B1 (ja)
CN (1) CN101653015B (ja)
WO (1) WO2008123315A1 (ja)

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JP5233772B2 (ja) * 2009-03-18 2013-07-10 ヤマハ株式会社 信号処理装置およびプログラム
JP5375400B2 (ja) * 2009-07-22 2013-12-25 ソニー株式会社 音声処理装置、音声処理方法およびプログラム
TWI412023B (zh) * 2010-12-14 2013-10-11 Univ Nat Chiao Tung 可消除噪音且增進語音品質之麥克風陣列架構及其方法
JP5621637B2 (ja) * 2011-02-04 2014-11-12 ヤマハ株式会社 音響処理装置
JP2012234150A (ja) * 2011-04-18 2012-11-29 Sony Corp 音信号処理装置、および音信号処理方法、並びにプログラム
JP5687605B2 (ja) * 2011-11-14 2015-03-18 国立大学法人 奈良先端科学技術大学院大学 音声強調装置、音声強調方法、及び音声強調プログラム
US10473628B2 (en) * 2012-06-29 2019-11-12 Speech Technology & Applied Research Corporation Signal source separation partially based on non-sensor information
US10540992B2 (en) 2012-06-29 2020-01-21 Richard S. Goldhor Deflation and decomposition of data signals using reference signals
US10067093B2 (en) 2013-07-01 2018-09-04 Richard S. Goldhor Decomposing data signals into independent additive terms using reference signals
US9460732B2 (en) * 2013-02-13 2016-10-04 Analog Devices, Inc. Signal source separation
US10475440B2 (en) * 2013-02-14 2019-11-12 Sony Corporation Voice segment detection for extraction of sound source
KR20150032390A (ko) * 2013-09-16 2015-03-26 삼성전자주식회사 음성 명료도 향상을 위한 음성 신호 처리 장치 및 방법
US9420368B2 (en) 2013-09-24 2016-08-16 Analog Devices, Inc. Time-frequency directional processing of audio signals
EP3113508B1 (en) * 2014-02-28 2020-11-11 Nippon Telegraph and Telephone Corporation Signal-processing device, method, and program
US10024884B2 (en) * 2014-05-22 2018-07-17 Tektronix, Inc. Dynamic mask testing
KR101651506B1 (ko) 2016-04-29 2016-08-26 주식회사 엘이디파워 전해 캐패시터 레스 전원 공급장치를 구비한 디밍형 led 조명장치
KR101651508B1 (ko) 2016-04-29 2016-09-05 주식회사 엘이디파워 전해 캐패시터 레스 전원 공급장치를 구비한 디밍형 led 조명장치
EP3324406A1 (en) * 2016-11-17 2018-05-23 Fraunhofer Gesellschaft zur Förderung der Angewand Apparatus and method for decomposing an audio signal using a variable threshold
JP6809936B2 (ja) * 2017-02-28 2021-01-06 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 雑音抽出装置およびマイクロホン装置

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JP2007033825A (ja) * 2005-07-26 2007-02-08 Kobe Steel Ltd 音源分離装置，音源分離プログラム及び音源分離方法

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Also Published As

Publication number Publication date
US8488806B2 (en) 2013-07-16
JP4950733B2 (ja) 2012-06-13
KR20100014518A (ko) 2010-02-10
JP2008252587A (ja) 2008-10-16
CN101653015B (zh) 2012-11-28
US20100128897A1 (en) 2010-05-27
KR101452537B1 (ko) 2014-10-22
CN101653015A (zh) 2010-02-17

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