Well it's a constant background noise, like a buzzing. It's almost as if dos box amplified the static (parasite) noise of my sound card. I get it also in any software I run under dos box. But any sound played by dos box covers the noise. Don't know if I need to give any more details?

As soon as I launch my dosbox I get very annoying continuus noise. Sound is working just fine inside games. But when ever the machine stops playing any sound, I get this noise back. Do you have any idea where it comes from and how could I get rid of this?