Convert Audible files to one big MP3 or one MP3 per Audible chapter using ffmpeg.

• audible2mp3
  • Description
  • Requirements
  • Usage

This script is based on a fork of KrumpetPirate's AAXtoMP3 with some additional features to address my personal requirements:

• no whitespaces in filenames, optional you can have whitespaces if you like
• no special characters in filenames like ÄÖÜäöüß, optional you can have special characters in filenames if you like
• chapter number padding for better file sorting
• exit script if the destination files exist or force ffmpeg to overwire existing files
• some minor error handling

You can use this script to convert Audible's AAX files into MP3 or FLAC files with ffmpeg. You can NOT use this script to crack, hack or break Audible files which you are not the rightful owner of. The sole purpose of this script is to create a personal backup of your audio books if for some reason Audible fails and can't grant your devices the right to decrypt the files any longer.

• ffmpeg version 2.8.3 or newer
• LAME MP3 encoding library
• BASH
• Your personal four activation bytes. Fetch them from Audible with e.g. audible-activator.

Usage: audible2mp3.sh [options] AUTHCODE {FILES}

Decode your Audible AAX audio books into MP3.

Options:

-c flac      Use flac instead of LAME. Default codec is libmp3lame.
-s           Decode audio book into one single file instead of individual file
             for each chapter.
-f           Force ffmpeg to overwire existing files.
-p           Use pretty filenames with whitespaces and german "Umlaute" instead of _.
             e.g. "John Irving/The Hotel New Hampshire - Chapter 1.mp3" instead of
             "John_Irving/The_Hotel_New_Hampshire_-_Chapter_1.mp3".
-h           Print this message.
-v           Verbose output (coming soon ;)
AUTHCODE     Your activation bytes to decrypt the audio book.

The default settings are MP3 with LAME encoder, same bitrate as the AAX, one file for each audio book chapter and no whitespaces or special characters in directory- and filenames.

Additionally, if you have an .authcode file available in the current working directory, it will read the first line of that line and treat it like your AUTHCODE.