An online collection of Japanese audio materials, featuring a wide range of categories including system sounds, electronic sounds, control sounds, noise, robot sounds, and background sound effects. The number of files may not be extensive, but it's still worth browsing through to see what's available. The website provides audio materials that can be used for commercial purposes, without the need to credit the source, and can be modified and processed as needed. No registration is required and the files can be downloaded directly.