Audiobook and podcast files, which also contain metadata including chapter markers, images, and hyperlinks, can use the extension .m4a, but more commonly use the .m4b extension. An .m4a audio file cannot “bookmark” (remember the last listening spot), whereas .m4b extension files can.
Some time, you need to convert AAX to M4A and remove DRM so as to play them on most Audio Player and devices.
The latest version of Macsome iTunes Audio Converter now supports Audiobook fast conversion, if you have a 25h Audiobook file, you only need 30s to finish the Audiobook conversion, including converting AAX to unprotected M4A with super fast speed.
How to convert AAX to M4A with iTunes Music Converter.
First of all, free download the latest version of iTunes Music Converter, and follow the instruction to install and launch it.
Step 1. Click Add button to import the AAX files from iBook library of iTunes.
Macsome iTunes Converter supports not only converting Audiobooks to MP3 or M4A format, you can also use it to convert downloaded Apple Music files, purchased Music files and so on to MP3, AAC, FLAC and WAV format as you like.
Step 2. Click the setting icon to set the output format and output folder.
If you are converting the general music files, here are four output audio formats for users to choose. But now if you want to convert AAX files, there will no output formats options for you to choose, M4A is the default output format. We are try every best to make it support more audio formats in the future.
Step 3. Click CONVERT button to start AAX to M4A conversion.
All the conversion will be finished quickly. And then users can play the MP3 Audiobook on any Audio Player as you like.