Mapping/Entities/misc sound
From UFO:AI
To add an ambient sound right click on the view grid: misc/misc_sound.
Keys
- noise: sound file name relative to sound/
- volume: Relative volume - value between 0.0 and 1.0
- attenuation: The attenuation value (0.0 is audible over the whole map, 3.0 is only audible when the sound source is very close to the camera.