[@Mr.Dave] Update: Program installed and registered without issue. Very clean user interface. Easy to apply filters, etc. to entire file or a selected section. Easy to zoom in and out. I would definitely recommend if you don’t already have an audio editor. I’ll stick with Sound Forge Audio Cleaning Lab for now because of all of its advanced features. You can add more capability to WaveCut, each item in the Tools menu is an add-on at a cost much higher than the base program itself, but that also gives you the option to pick and choose what’s useful to you: multi-track recording, pitch/speed shift, tag editor and others. WaveCut by itself is still very useful.
Some tools I don’t see a use for, like inverting the waveform. That doesn’t affect the sound quality, and really only makes sense if you can flip one channel at a time which would cancel out things in the center of the mix, like vocals. It IS possible to load two audio files, copy part of one and paste it into the other. This paste can either overwrite or replace the affected area of the destination, or you can do a “Paste Mix” which combines source and destination. That’s a nice feature I don’t see in other programs! I don’t see any way to fine-tune cross-fades between sections of music, but I’m thinking that’s a complexity you won’t often need as long as you can do a Paste Mix. Help file is not very helpful, it doesn’t describe things like different types of pasting, so you’ll need to experiment.