Windows hidden sound scheme?

[Stradocaster]

So, this isn't a problem or anything but I'm just curious. I was listening to some music fairly loud via headphones, and I noticed when I paused the music, I heard sounds. Aside from the normal fuzzyness you get from something that's up too loud, I heard sounds that happened with I minimized and maximized windows, as well as resizing them. The thing is, in my settings I have no sounds assigned to such actions. The sounds are VERY faint, and the only reason I can hear them is because the sound is up quite loud. What could be causing these sounds? Remember. I checked the windows sound scheme and it is programmed to no sounds. Thanks for the help in advance

-KC

 

[H4x3r]

it's an interference of some kind with the Intergrated audio....we all get it on the onboard audio...so if u dont want it...get a PCI soud card