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.
Best Answer
To concatenate the MP3s to an M4B, you could use ffmpeg. Download a recent version, then run:
Your ffmpeg might not have
fdk_aacenabled; if that's the case, you can try using-c:a libfaac(high quality)-c:a aac -strict experimental(decent quality, but use higher bitrates)-c:a libvo_aacenc(rather bad quality)See the AAC encoding guide for more info.
If you want to use neroAacEnc instead, you could use:
Neither of these will add chapter metadata, I'm afraid.