Sound field equalization by active acoustic impedance control

Junji Hagio, Akihiro Kakiuchi, Akira Omoto

    研究成果: 書籍/レポート タイプへの寄稿会議への寄与

    1 被引用数 (Scopus)

    抄録

    This study examined sound field equalization by using active control. The specific acoustic impedance, the ratio of sound pressure and particle velocities is adopted as a target of control. Providing the impedance in the aimed direction is controlled to be the characteristic impedance of the medium, the propagating plane wave in any particular direction would be expected. In addition, the directional characteristic of the sound propagation can also be controlled by adjusting the weight of ratios of pressure and velocity in three orthogonal directions. The results of numerical simulations using impulse response measured in a small enclosure indicate the potential efficiency of the proposed method and the propagating plane wave could be observed. Furthermore, the results of subjective experiments indicate that the proposed method may alter the perceived direction of incoming sound by controlling the sound field nearby the human listening position.

    本文言語英語
    ホスト出版物のタイトル40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011
    ページ2603-2608
    ページ数6
    出版ステータス出版済み - 12月 1 2011
    イベント40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011 - Osaka, 日本
    継続期間: 9月 4 20119月 7 2011

    出版物シリーズ

    名前40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011
    3

    その他

    その他40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011
    国/地域日本
    CityOsaka
    Period9/4/119/7/11

    !!!All Science Journal Classification (ASJC) codes

    • 音響学および超音波学

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