Broadband active sound control system for air-conditioning duct noise
スポンサーリンク
概要
- 論文の詳細を見る
This paper describes an active sound control system using an FIR digital filter, which attenuate low-frequency noise in an air-conditioning duct system. This system is a monopole type with two identical microphones located on upstream and downstream sides at equal distance from the cancellation loudspeaker in the duct. The output signals of the two microphones are mixed 180゜out of phase with one another, and are fed to the input terminal of the digital filter. This reduces acoustic feedback in the system, offering high performance for duct noise caused by a centrifugal fan in a range of 70 Hz to 600Hz.
- 社団法人日本音響学会の論文
著者
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TAKAHASHI Minoru
Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
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KURIBAYASHI Takashi
Laboratory of Immunology, College of Environmental and Health Sciences, Azabu University
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Hamada H
Tokyo Denki Univ. Tokyo Jpn
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Kuribayashi T
Laboratory Of Immunology College Of Environmental And Health Sciences Azabu University
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Kuribayashi Takashi
Research Laboratory,Hitachi Plant Engineering & Construction Co.,Ltd.
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Asami Kinichiro
Research Laboratory,Hitachi Plant Engineering & Construction Co.,Ltd.
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Enokida Takashi
Tokyo Denki University
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Hamada Hareo
Tokyo Denki University
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Miura Tanetoshi
Tokyo Denki University
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Takahashi M
Hitachi Plant Engineering & Construction Co. Ltd. Chigba Jpn
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Takahashi Minoru
Research Laboratory For Nuclear Reactors Tokyo Institute Of Technology
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Asami Kinichiro
Research Laboratory Hitachi Plant Engineering & Construction Co. Ltd.
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