JP2004080464A5 - - Google Patents

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Publication number
JP2004080464A5
JP2004080464A5 JP2002238831A JP2002238831A JP2004080464A5 JP 2004080464 A5 JP2004080464 A5 JP 2004080464A5 JP 2002238831 A JP2002238831 A JP 2002238831A JP 2002238831 A JP2002238831 A JP 2002238831A JP 2004080464 A5 JP2004080464 A5 JP 2004080464A5
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JP
Japan
Prior art keywords
computing units
voice
signal
wind noise
signals
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JP2002238831A
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English (en)
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JP4196162B2 (ja
JP2004080464A (ja
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Priority claimed from JP2002238831A external-priority patent/JP4196162B2/ja
Priority to JP2002238831A priority Critical patent/JP4196162B2/ja
Priority to PCT/JP2003/010453 priority patent/WO2004019654A1/ja
Priority to CNB038197359A priority patent/CN100525509C/zh
Priority to KR1020057002809A priority patent/KR100976003B1/ko
Priority to US10/525,112 priority patent/US7174023B2/en
Publication of JP2004080464A publication Critical patent/JP2004080464A/ja
Publication of JP2004080464A5 publication Critical patent/JP2004080464A5/ja
Publication of JP4196162B2 publication Critical patent/JP4196162B2/ja
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Expired - Fee Related legal-status Critical Current

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Description

【0016】
この請求項3に記載の自動風音低減回路によれば、N個の音声チャンネルの音声信号のうちの任意の音声信号間の差分音声信号から実際の風音信号のレベルに応じたレベル検波信号を得て、このレベル検波信号に基づいて、第1の利得制御手段における利得が制御するようにされる。
【0090】
また、前述した実施の形態においては、演算器26、29、演算器27、31、演算器28、30の前段において、各音声チャンネルの音声信号の帯域制限を行うようにしたが、これに限るものではなく、演算器29、30、31の出力信号について帯域制限するようにしてもよい。
JP2002238831A 2002-08-20 2002-08-20 自動風音低減回路および自動風音低減方法 Expired - Fee Related JP4196162B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2002238831A JP4196162B2 (ja) 2002-08-20 2002-08-20 自動風音低減回路および自動風音低減方法
US10/525,112 US7174023B2 (en) 2002-08-20 2003-08-19 Automatic wind noise reduction circuit and automatic wind noise reduction method
CNB038197359A CN100525509C (zh) 2002-08-20 2003-08-19 自动风噪声减小电路及其方法
KR1020057002809A KR100976003B1 (ko) 2002-08-20 2003-08-19 자동 풍음 저감 회로 및 자동 풍음 저감 방법
PCT/JP2003/010453 WO2004019654A1 (ja) 2002-08-20 2003-08-19 自動風音低減回路および自動風音低減方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002238831A JP4196162B2 (ja) 2002-08-20 2002-08-20 自動風音低減回路および自動風音低減方法

Publications (3)

Publication Number Publication Date
JP2004080464A JP2004080464A (ja) 2004-03-11
JP2004080464A5 true JP2004080464A5 (ja) 2005-03-17
JP4196162B2 JP4196162B2 (ja) 2008-12-17

Family

ID=31943847

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002238831A Expired - Fee Related JP4196162B2 (ja) 2002-08-20 2002-08-20 自動風音低減回路および自動風音低減方法

Country Status (5)

Country Link
US (1) US7174023B2 (ja)
JP (1) JP4196162B2 (ja)
KR (1) KR100976003B1 (ja)
CN (1) CN100525509C (ja)
WO (1) WO2004019654A1 (ja)

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JP4367484B2 (ja) * 2006-12-25 2009-11-18 ソニー株式会社 音声信号処理装置、音声信号処理方法及び撮像装置
JP5219499B2 (ja) * 2007-08-01 2013-06-26 三洋電機株式会社 風雑音低減装置
US8428275B2 (en) 2007-06-22 2013-04-23 Sanyo Electric Co., Ltd. Wind noise reduction device
CN101569209B (zh) * 2007-10-04 2013-08-21 松下电器产业株式会社 噪声抽取装置和方法、麦克风装置、集成电路以及摄像机
US8892432B2 (en) * 2007-10-19 2014-11-18 Nec Corporation Signal processing system, apparatus and method used on the system, and program thereof
WO2009078105A1 (ja) * 2007-12-19 2009-06-25 Fujitsu Limited 雑音抑圧装置、雑音抑圧制御装置、雑音抑圧方法及び雑音抑圧プログラム
US8914282B2 (en) 2008-09-30 2014-12-16 Alon Konchitsky Wind noise reduction
US20100082339A1 (en) * 2008-09-30 2010-04-01 Alon Konchitsky Wind Noise Reduction
US8433564B2 (en) * 2009-07-02 2013-04-30 Alon Konchitsky Method for wind noise reduction
JP5594133B2 (ja) * 2010-12-28 2014-09-24 ソニー株式会社 音声信号処理装置、音声信号処理方法及びプログラム
US9357307B2 (en) 2011-02-10 2016-05-31 Dolby Laboratories Licensing Corporation Multi-channel wind noise suppression system and method
US20120275614A1 (en) * 2011-04-28 2012-11-01 Sony Corporation Noise cancellation unit
JP5919647B2 (ja) 2011-05-11 2016-05-18 富士通株式会社 風雑音抑圧装置、半導体集積回路及び風雑音抑圧方法
GB2492162B (en) * 2011-06-24 2018-11-21 Audio Analytic Ltd Audio signal processing systems
WO2013091021A1 (en) 2011-12-22 2013-06-27 Wolfson Dynamic Hearing Pty Ltd Method and apparatus for wind noise detection
US9721584B2 (en) 2014-07-14 2017-08-01 Intel IP Corporation Wind noise reduction for audio reception
EP2996352B1 (en) * 2014-09-15 2019-04-17 Nxp B.V. Audio system and method using a loudspeaker output signal for wind noise reduction
CN104599674A (zh) * 2014-12-30 2015-05-06 西安乾易企业管理咨询有限公司 一种摄像中定向录音的系统及方法
CN107452395B (zh) * 2017-08-23 2021-06-18 深圳创维-Rgb电子有限公司 一种语音信号回声消除装置及电视机
CN109104672B (zh) * 2018-08-27 2020-11-24 上海咔滨船舶装备有限公司 声音降噪电路及话筒

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JP3279612B2 (ja) * 1991-12-06 2002-04-30 ソニー株式会社 雑音低減装置
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JP3186411B2 (ja) 1994-03-29 2001-07-11 ソニー株式会社 収音装置
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