Underwater Boat Motor Starting and Idling

This underwater recording captures the sounds of a boat motor starting, idling, and shutting off. The audio begins with the initial cranking of the engine, followed by the gradual increase in RPM as the motor starts. Once running, the motor hums at an idle speed, creating a low-frequency rumble that reverberates through the water. The recording ends with the motor shutting down, leaving behind a fading echo of its mechanical activity. This sound can be used to create immersive scenes involving boats in underwater environments.