Active sound field equalization

A. Omoto, H. Suzuki, A. Kakiuchi

    Research output: Contribution to journalConference articlepeer-review

    1 Citation (Scopus)


    The concept and the preliminary examination of active sound field equalization are presented. As well known, active control scheme is mostly used for suppressing the sound pressure at certain points. In our method, however, the sound pressure and the particle velocity are adopted as the control quantity. The acoustic intensities or the specific acoustic impedances at plural points are then modified to control the directional characteristics of the sound field in the enclosure. As a result, the intensity controller changes the direction of standing waves. On the other hands, the impedance controller shows the tendency to yield the propagating waves in desired direction. Both methods show potentials to equalize irregularities of the sound field due to the strong acoustic modes.

    Original languageEnglish
    Pages (from-to)1291-1296
    Number of pages6
    JournalProceedings - European Conference on Noise Control
    Publication statusPublished - 2008
    Event7th European Conference on Noise Control 2008, EURONOISE 2008 - Paris, France
    Duration: Jun 29 2008Jul 4 2008

    All Science Journal Classification (ASJC) codes

    • Acoustics and Ultrasonics
    • Public Health, Environmental and Occupational Health
    • Building and Construction
    • Mechanical Engineering
    • Industrial and Manufacturing Engineering
    • Automotive Engineering
    • Aerospace Engineering


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