[Help] ASUS VH236 Hissing/Buzzing?

Hey guys! So heres the deal, I just recently bought a new ASUS VH236 from Newegg.

When it came to my house it seemed fine, I plugged it in and hooked up my ps3 (HDMI) and turned them on.

The sound worked fine when I was at the main menu sort of thing, when your not in any games.

I go into Battlefield 3 and I hear this awful buzzing, turns out it was my speakers. Here's what I think it is, changing the screen resolution, hrtz, etc when entering bf3 may be causing it? I mean it was working fine on my dock!

I was originally planning to put speakers in but if I have the TV volume on 0 (to negate buzzing)

I don't know if my speakers will work!Do any of you guys have the same problem with ASUS monitors? Is this just my Ps3 or is it the monitor? I've tried 2 HDMI cables. Thanks.