Hideaki Utsumi (内海 秀明, Utsumi Hideaki), also known as Tono2097, is a Japanese video game sound designer, audio engineer, composer, YouTuber, and musician, and is currently an instructor at HAL Osaka, a vocational school in Osaka, Japan.

[2][3] He is best known for sound design for the Resident Evil video game series,[4][5][6][7] and his YouTube channel.

Utsumi is also one half of the musical duo mT with Tanaka Hit, playing both the keyboard and the band's own creation, the MIDI stick, created from arcade-game controllers.

[8] He is married to former Capcom colleague Saori Maeda, who co-composed the soundtrack of Resident Evil 3: Nemesis with Masami Ueda.

[12] Utsumi also had a black lory named Kuromi, who died of unknown causes on September 15, 2021.