I just built a new gaming PC with windows 8 and an msi z87 g45 motherboard. It's amazing, and I installed the Soundblaster and realteck Hd drivers. 
The only problem that I'm having is that every time 2 things play at once, the other's volume is lowered. like when Im playing battlefield 4, my gun sound good and then when my friend talks on teamspeak my gun is barely heard for a few seconds afterward. Ive tried changing the "communications- do nothing" thing, but it's not working. What do you suggest that I do?

The only problem that I'm having is that every time 2 things play at once, the other's volume is lowered. like when Im playing battlefield 4, my gun sound good and then when my friend talks on teamspeak my gun is barely heard for a few seconds afterward. Ive tried changing the "communications- do nothing" thing, but it's not working. What do you suggest that I do?