オサカ ナオトシ   OSAKA Naotoshi
  小坂 直敏
   所属   東京電機大学  未来科学部 情報メディア学科
   東京電機大学大学院  先端科学技術研究科 情報通信メディア工学専攻
   東京電機大学大学院  未来科学研究科 情報メディア学専攻
   職種   教授
言語種別 英語
発行・発表の年月 2019/10
形態種別 国際会議論文
査読 査読有り
標題 Modeling of Direct-Sound Transfer Functions in Local Area by Sparse Equivalent Sources
執筆形態 共著
掲載誌名 Proc. 2019 IEEE 8th Global Conference on Consumer Electronics
掲載区分国外
出版社・発行元 IEEE
巻・号・頁 pp.773-777
総ページ数 5
著者・共著者 Izumi Tsunokuni, Kakeru Kurokawa, Yusuke Ikeda and Naotoshi Osaka
概要 For many acoustic technologies, the measurement of room impulse responses is important. To improve measurement accuracy and cost, various measurement methods have been proposed. For sound field control or analysis, impulse responses should be measured at multiple points by using a microphone. However, repeated measuring impulse responses by moving a microphone to each measurement point requires significant time and effort. A massive microphone array can help measure multiple impulse responses simultaneously. However, in most cases, sound reflections by the microphone array should not be ignored. In this paper, we propose an estimation method of the transfer functions of direct sound from a single loudspeaker to a local region. The transfer functions are modeled via the superposition of sparse point sources, which are selected based on the measurement of the transfer function at a few points.