Yasumasa Koyama (小山恭正 Koyama Yasumasa) is a Japanese sound effects editor/designer who formerly worked at Sound Garden. He currently works at SOUNDS GOOD.
Koyama is well known for his sound design on the JoJo's Bizarre Adventure anime series by David Production.
Sound Effect Libraries he uses
Legend: BOLD indicates main library usage
- Sci Fi Sound Effects Library
- Action Cutz (Best Service, future sword fight - energy sword hit sequence layer (16) only.)
- Animation Collection (Dog Howls 2 Dog Howls AC047301 & 401 only)
- The Art of Foley
- Background Trax
- Cartoon Trax Volume 1
- Close Combat Designed Sound Effects Library
- Distorted Reality
- The Edge Edition Volume 1
- Explosions For The 21st Century Patricio Libenson's Signature
- Hero – Medieval Weapons Sound Effects Library
- Historical Firearms Sound Effects Library
- The General Series 6000 Sound Effects Library
- Guns Sound Effects Library
- Hanna-Barbera Sound Effects Library
- ITO Katsumi / Saun-michi Vol. 1 ~ Showa, Jidaigeki, World War ~
- Magic Sound Effects Library
- Medieval Weapons Sound Effects Library
- The Premiere Edition Volume 1
- The Premiere Edition Volume 2
- Powersurge 2 Sound Effects Library
- Series 1000 Sound Effects Library
- Series 2000 Sound Effects Library
- Series 4000 Hollywood Sound Effects Library
- Series 5000 Wheels Sound Effects Library
- Series 9000 Open & Close Sound Effects Library
- SFX Kit
- Sonopedia 3.0 Sound Effects Library
- Sony Pictures Sound Effects Library Volumes 6-10
- Sound Designer Toolkit 1
- Turner Entertainment Co. Sound Effects Library
- Warner Bros. Sound Effects Library