Yasumasa Koyama

Yasumasa Koyama (小山 恭正) is a Japanese sound designer credited for his work on David Production's animated adaptation of JoJo's Bizarre Adventure.

His work on the series began with Battle Tendency, in which he replaced Ijo Okuda, who previously worked on Phantom Blood. In addition to JoJo, he is known for working on other popular series such as, , and David Production's own adaptation of. His sound design is recognized for being distinctly powerful and aggressive.

He currently works freelance. In the past, he worked for the companies Soundgarden and SOUNDS GOOD.

Credits

 * JoJo's Bizarre Adventure: The Animation
 * Sound Design (Ep. 10-26, Re-Edited Vol. 1-3, OP1, OP2)
 * JoJo's Bizarre Adventure: Stardust Crusaders
 * Sound Design (Ep. 1-48, OP1, OP2)
 * JoJo's Bizarre Adventure: Diamond is Unbreakable
 * Sound Design (Ep. 1-39, OP3)
 * JoJo's Bizarre Adventure: Golden Wind
 * Sound Design (Ep. 1-39, OP2)
 * JoJo's Bizarre Adventure: Stone Ocean
 * Sound Design (Ep. 1-?)
 * Thus Spoke Kishibe Rohan (OVA)
 * Sound Design (Ep. 5, 2, 9, 16)

Anime

 * (2011) - Sound Designer
 * (2012) - Sound Designer
 * (2012) - Sound Designer
 * (2013) - Sound Designer
 * (2014) - Sound Designer
 * (2014) - Sound Designer
 * (2015) - Sound Designer
 * (2016) - Sound Designer
 * (2016) - Sound Designer
 * (2017) - Sound Designer
 * (2018) - Sound Designer
 * (2018) - Sound Designer
 * (2019) - Sound Designer
 * (2019) - Sound Designer
 * (2019) - Sound Designer
 * (2019) - Sound Designer
 * (2019) - Sound Designer
 * (2019) - Sound Designer
 * (2019) - Sound Designer
 * (2020) - Sound Designer
 * (2020) - Sound Designer
 * (2021) - Sound Designer
 * (2021) - Sound Designer
 * (2022) - Sound Designer

Film

 * (2014) - Sound Designer
 * (2015) - Sound Designer
 * (2017) - Sound Designer
 * (2017) - Sound Designer
 * (2018) - Sound Designer
 * (2019) - Sound Designer
 * (2020) - Sound Designer

Other

 * (2016) - Sound Designer

Gallery
diotimestopvideo.mp4 moodybluessound.mp4

Trivia

 * The White Album (story arc) is his favorite fight.
 * He has stated that he often takes inspiration from Yugo Kanno's music and tries to compliment it with his sound effects.