Shigeyuki Hirai is a Professor in the Faculty of Information Science and Engineering at Kyoto Sangyo University. Prior to his present affiliation, he was a system engineer at OGIS-RI Co., Ltd. and a researcher at KRI Inc. He received a Ph.D. degree in engineering from Osaka University in 2002. His research interests are HCI, Entertainment Computing, and Sound&Music Computing. For these twenty years, he has worked in interactive systems for everyday life, mainly research and development of smart houses with Japanese lifestyle. He is a member of ACM, IPSJ, IEICE, Human Interface Society, and The Society for Art and Science.