イケダ ユウスケ   IKEDA Yusuke
  池田 雄介
   所属   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   助教(A)
発表年月日 2016/11/28
発表テーマ Large-scale loudspeaker array system for sound field reproduction using high-speed 1bit signal processing
会議名 5th ASA and ASJ Joint Meeting
学会区分 国際学会
発表形式 口頭(一般)
単独共同区分 共同
発表者・共同発表者 Yusei Yamanaka, Daiki Takeuchi, Dai Kuze, Yusuke Ikeda, and Yasuhiro Oikawa
概要 In this study, we proposed the large-scale loudspeaker array system with high-speed 1 bit signal. The system consists of a master and hub systems with sample rate of 4 MHz. The master system reads multi-channel 1 bit signal from SSD and transmits it to each hub system. Each hub system drives 32 loudspeakers by CMOS drivers. The master and each hub system are connected with a LAN cable to implement only hub system near the loudspeakers. It is easy to scale the size of system with flexibility thanks to the simplicity of the circuit and signal flow. We conducted preliminary experiments to control its sound directivity. In the future, we are planning to construct 1536-channel sound reproduction system with our proposed system.