Yasuhiro Oikawa received his B.E., M.E., and Ph.D. degrees in Electrical Engineering from Waseda University in 1995, 1997, and 2001, respectively. He is a professor of the Department of Intermedia Art and Science, Waseda University. His main research interests are communication acoustics and digital signal processing of acoustic signals. He is a member of ASJ, ASA, IEICE, IEEE, ACM, IPSJ, VRSJ, and AIJ.