by qv » August 16th, 2011, 9:54 pm
Hmm... as far as the actual audio editor, I use Audacity... it's free, and can do way more than I need it to. They have a Linux version too, though I haven't tried it. I'd assume it's essentially the same, but my apologies if it isn't.
As for editing the tracks, just skip around to where you want the new version of the file to begin, same for the end. Try to avoid going into trance while doing so, though (that's why I skip around). This is what I do when I want to loop the body of a file overnight and leave out the induction and awakener, since using an awakener while trying to sleep just makes no sense.
I'm sure you can layer tracks with it too, though I've only done so accidentally.