*Yutaka Uno¹, Ryo Ishii², Shibata Daisaku¹, Kai Ishikawa³, Kunihiko Sadamasa³, Shibuya Kei¹, Masanori Tsujikawa¹, Atsuhiro Nakagawa⁴, Masafumi Oyamada¹, Masahiro Kubo¹, Yukio Katori² (1. NEC Corporation, Biometrics Research Laboratories, 2. Tohoku University Hospital, Department of Otolaryngology-Head and Neck Surgery, 3. NEC Corporation, Data Science Laboratory, 4. Tohoku University Hospital, Experience Design and Alliance Section)