So what would the ideal non-re-encoding program look like? Does it need to be able to find split points for you using silence detection? (I think Audacity does this but I've never tried it) I guess it would need to be a GUI? Have playback capability so that you can find and set the split points in the same program?
The program I use (not for audiobooks) is a command line program that you give a start and end point. You can also give it a list of start/end points and it will create multiple files. Of course finding those points requires scanning the file in e.g. a player program.
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