XPLMSetAudioPosition
XPLM_API FMOD_RESULT XPLMSetAudioPosition(
FMOD_CHANNEL* fmod_channel,
FMOD_VECTOR* position,
FMOD_VECTOR* velocity);
Move the given audio channel (i.e. a single sound) to a specific location in local co-ordinates. This will set the sound to 3D if it is not already.