AAX: conversion steps
- Upload your AAX file to start.
- Convert AAX to AAC.
- Download the AAX file.
About AAX files
Audible's DRM-protected audiobook format
AAX is the audiobook format of Audible: AAC audio in an MP4-style container, encrypted with Audible's DRM and tied to the buyer's account.
Audiobooks downloaded from Audible.
AAX: what conversion changes
Converting AAX re-encodes audio.
AAX: settings to change
Before you convert AAX files, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Limits of the AAX format
AAX files are DRM-protected, and DRM-protected files cannot be converted here.
Common questions about AAX
Why won’t my AAX audiobook play outside the Audible app? Audible protects the files with DRM, so they only open in authorised apps — that protection is exactly why DRM-protected audiobooks cannot be converted here.
Can I play AAX audiobooks outside Audible? AAX files are protected by Audible's DRM, so only the Audible apps and authorised devices open them. The format cannot be converted without the original rights, and unprotected MP3 or M4B files are the alternative.