TL;DR – If you’re experiencing crackling and popping in Reaper when you have ReaTune on a track, check that you don’t still have the track Record Armed. .

I was recording vocals into a project in Reaper recently, and even while I was singing I knew I missed a couple of notes. These were just scratch vocals that would be replaced later by someone who can actually achieve those notes, so after a couple of takes I decided to drop in ReaTune to tighten them up so I could get on with the rest of the track.

Just running the audio through ReaTune, even before adjusting anything, I could hear all sorts of crackling and popping in the audio. WTF?