Every so often all my sound in game will turn to some kind of siren/wooooooo sound that pulses in volume. The sound will only go away when I restart GW2. Enabling/disabling sound ingame doesn’t make any difference. It stops all other sounds and just plays this one sound but only from the program (it’s not my entire audio card crashing just something in the program). Sometimes a few seconds after the sound starts the entire game will hang until I ctrl-alt-del out and quit the process.
This only seems to happen in WvW when attacking doors or other high volume (players and noise) areas.
I can post a dxdiag if needed.