406 適応フィードバック ANC による離散周波数音の消音

書誌事項

タイトル別名
  • Sound Attenuation of Discrete Tone Using Adaptive Feedback Active Noise Control

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抄録

The attenuation characteristics of a slit resonator that has the adaptive feedback ANC system for leakage noise at a ventilation aperture of the package is investigated. The discrete tones that are radiate from an AC axial fan are controlled by DSP using Filtered-X LMS algorithm. The attenuation level at each discrete tone in using the circular slit resonator is between 4dB and 14dB. Also, the attenuation level between 6dB and 15dB is observed in the ellipse slit resonator. The proposed system, which consists of a slit resonator with control speakers and the adaptive feedback ANC, enable us to reduce discrete tones effectively.

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詳細情報 詳細情報について

  • CRID
    1571135652168160384
  • NII論文ID
    110002483285
  • NII書誌ID
    AA11901770
  • ISSN
    13480235
  • 本文言語コード
    ja
  • データソース種別
    • CiNii Articles

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