Sound popping anyone?

I am getting sound popping. It ONLY happens with SWToR and ONLY during space missions. It happens regardless of whether or not the game sound is enabled or disabled (ctrl+s). It doesn't happen when I am playing music or any other game (for example in WoW with max sound settings it doesn't happen during a 25 man raid).

I have on-board sound with a decent rig besides. This is a really annoying issue for me and I can't figure out a fix (or find anyone else having the same problem). The only thing I can think of (especially since there is no configuration option for it) is that the game is using a ridiculous amount of sound channels which only come into use during space missions where there can be hundreds of sounds being played at the same time. Any help would be appreciated.