I have a backing track of Santana's Love is You which I really like, but there is a section at about 2:33 which has an underlying hiss (like a tape hiss almost). It goes away around 3:00 and is clean the rest of the way. I've found the track on numerous sites and they all appear to be clones of whomever produced the original. The hiss occurs in the highlighted portion shown below. http://www.guitarbackingtrack.com/play/santana,_carlos/love_is_you.htm I'm looking for a method to detect and remove the hiss. There's no lead-in with just the hiss, it's embedded in the track. I have Reaper but I'm really new to it and am not sure how to approach the problem. I tried a couple noise removal methods in Audacity but I am unsure how to isolate just the hiss. My attempts so far have been FAIL. I've included the link to the download in case anyone wants to hear it. Any help would be greatly appreciated.