A miniaturized adaptive microphone array under directional constraint utilizing aggregated microphones

Mitsuharu Matsumoto, Shuji Hashimoto

    研究成果: Article

    20 引用 (Scopus)

    抜粋

    This paper introduces a miniaturized microphone array using the Directionally Constrained Minimization of Power (DCMP) method, which utilizes the transfer functions of microphones located at the same place, namely aggregated microphones. The phased microphone array realizes a noise reduction and direction of arrival (DOA) estimation system according to differences in the arrival time, phase shift, and/or the level of the sound wave for each microphone. Hence it is difficult to miniaturize the microphone array. The objective of our research is to miniaturize the system size using aggregated microphones. In this paper, we first show that the phased microphone array system and the proposed aggregated microphone system can be described within the same framework. We then apply a microphone array under directional constraint to the aggregated microphones and compare the proposed method with the microphone array. We show the directional pattern of the aggregated microphones. We also show the experimental results regarding DOA estimation.

    元の言語English
    ページ(範囲)352-359
    ページ数8
    ジャーナルJournal of the Acoustical Society of America
    119
    発行部数1
    DOI
    出版物ステータスPublished - 2006 1

    ASJC Scopus subject areas

    • Acoustics and Ultrasonics

    フィンガープリント A miniaturized adaptive microphone array under directional constraint utilizing aggregated microphones' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用