I'm not really sure of quite what kind of background sound you are referring to?? If you are referring to the nasty " room tone", there are 2 popular ways to help reduce it.

If your software offers any kind of dynamics processing like limiting and compression, then it may also offer downward expansion or gating? Using a downward expander or gate (they are similar but different) you can set a threshold level that will turn the volume completely down or, down to a preset level at the end of the guitar sustain sound. This is popular to do especially when there are other instruments to " mask" the peculiar sound of " sound, no sound". It can be rather unnatural sounding to do that on a solo instrument.

If your software offers or you have a plug-in that is popularly used for " noise reduction"? You can highlight a small sample of just the room tone sound and then start the noise reduction plug-in to take a "picture" of the noise. You can then highlight the entire guitar section and then tell the noise reduction program to " reduce noise". You can also select the depth of the noise reduction along with other parameters that will help to eliminate that room tone that I believe you are describing?

Aside from that, if you are talking about an overly distorted track that wasn't distorted to begin with, it's time to pay more attention to what your software is doing to amplitude.

I hope this helps?
Ms. Remy Ann David

uhhh i don't really know what that means. but i will try, thanx