About NISHIMURA RYOICHI
About 情報通信研究機構 耐災害ICT研究セ
About SAKAMOTO SHUICHI
About 東北大 電通研
About CHISAKI YOSHIFUMI
About CUI Zhenglie
About 東北大 電通研
About 電子情報通信学会技術研究報告
About fire protection system
About disaster countermeasure
About radio transmission
About optimum design
About loudspeaker
About communication disturbance
About distribution of information
About sound environment
About reverberation
About articulation(ratio)
About speech understanding
About acoustic echo
About long-path echo
About speech intelligibility
About loudspeaker
About reverberant environment
About information transfer
About disaster prevention administrative radio
About Natural disasters
About Urban problems,urban disaster prevention
About 防災行政無線
About 屋外
About 最適設計