Default sound device switch mid-game

One of my testers just found out that if you unplug a set of speakers/headphones while running the game, all sound in the game stops and it needs to be restarted. I am guessing this is because his laptop switches the default sound device when something is unplugged.

Is there a way to fix this in the current version? If not, is it possible that it can be addressed in the next update?

Thanks.

Wouldn't that be an issue of his laptop? My laptop started behaving the same way since I recently did a fresh install of windows 8.1 pro a few weeks or so back - before that I only had 1 sound device & 1 playback device & now for some reason I have multiple sound & playback devices depending on what I currently have plugged into my laptop at any given time. I think it's given me these options because I didn't bother reinstalling my sound card drivers & let windows handle itself...

Other than that... I guess I'll let Simon anwer your question about whether anything can be done on VS end.

Seems to be very soundcard/windows related.
The same should also happen when you are watching a youtubevideo and switch sound device in the middle of watching.