Haha, all you had to do was ask

I just did this last night for Win8, but for me it was dropping the volume when I disconnected the keyboard and mouse (I was using my system to stream some video while building a PC for a co-worker and needed the mouse/keyboard for that). It was driving me nuts until I remembered that setting was there. In this case, however, TeamSpeak had nothing to do with it. For whatever reason, Win8 saw me disconnecting the keyboard/mouse as "Communications" activity.