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I have a batch of MP3 based books. Some of them divide into files according to book's own structure: chapters and so on. Some of them was just divided into equally lengthened parts.
So. I've bought an iPhone, and I want to convert them all to M4B format. How could I convert them in a batch? I mean how cold I set up a process once, for each book, and then, after couple of weeks, receive totally converted library.
The only able program for such conversion I've found was Audiobook Builder for a Mac. But it is pretty slow and do not support batching in principle.
Solutions for any platform, please.
@slhck when i use "-c:a libfaac" the error message "Unknown encoder 'libfaac'" appears, similar to libfdk_aac , any suggestion pls? – athos – 2014-10-03T10:07:18.233
@athos either use one of the other ffmpeg options, or download neroAacEnc and use that (I'd recommend neroAacEnc if you don't have
– evilsoup – 2014-10-03T11:29:23.170libfdk_aac
).@athos The aac encoder should always work as it's built into ffmpeg. You can also build ffmpeg yourself if you're on Linux, or install it through Homebrew on OS X, which gives you the libfdk_aac encoder, and that's the one with the best quality. – slhck – 2014-10-03T12:15:14.250
@slhck is there a Windows solution? – athos – 2014-10-04T05:11:04.367
@athos It is possible (see here https://trac.ffmpeg.org/wiki/CompilationGuide#Windows) but probably a little more complicated. But just use the internal aac encoder—it's quite decent.
– slhck – 2014-10-04T08:38:42.757