Re:Major book publishers sue Amazon’s Audible over new speec...
by gamblor956 on Monday August 26, 2019 @06:36PM
(#20804436)
Arguably it could be fair use but strictly speaking it's copyright infringement.
It's generally not worth the copyright owner's resources to pursue something like that unless it's happening on a much larger scale.
Even for personal use, where you aren't sharing the extracted audio? I am pretty sure that would be allowed.