There’s just a whole bunch of software out there that removes pops and crackles from records. I usually capture my records using DAK because I can do a whole side then brake it up. I then clean up individual files with another wave editor. Right now I like Nero Wave editor II. If your LP preamp does a good equalization on your LPs you probably don’t have to do much more yourself. When I record from cassettes I have to bring up the highs and remove tape hiss.

I do have a web page on this at:

http://dvautier.home.comcast.net/audio/audio.htm

and maybe this one

http://dvautier.home.comcast.net/lp/lp.htm

good luck