It's a null audio device for when the freeaudio or other driver fails to start.
If anyone does get confused with BlitzMax I recomend just placing a DebugStop in some test code before the command you want to know about and then Step In using the debugger to get a far better idea of whats happening "under the hood".
If anyone does get confused with BlitzMax I recomend just placing a DebugStop in some test code before the command you want to know about and then Step In using the debugger to get a far better idea of whats happening "under the hood".