Defined in carb/audio/IAudioPlayback.h

constexpr PlaybackModeFlags carb::audio::fPlaybackModeStopOnSimulation = 0x00004000

flag to indicate that a voice should be immediately stopped if it ever gets unassigned from its bus and put on the simulation path.

This will also fail calls to playSound() if the voice is immediately put on the simulation path. The default behavior is that voices will be able to go into simulation mode.