
What is AAX format? The file with the AAX extension is the data file format that associated with Audible enhanced format. The AAX format is an exclusive audiobook format developed by Audible.com while the AAX file is multimedia digital audiobook which includes images, links, videos and timeline. Also, the AAX format can be assumed the enhanced format of AA which is an old audiobook format developed by Audible. Compared with AA, AAX format has higher bit rate of 64Kbps and takes up larger space. Consequently, AAX format has higher sound quality because it is "uncompressed" feature. In 2020, Audible.com has discontinued the aa format and moves to Audible aax format only. So there is no way to download audible aa format anymore.
Here I will introduce how to convert AAX to MP3 on Windows 10. This method is also applied to other Windows system, like Windows 11, 8, and 7. If you also have a Mac computer, you will be interested in the easiest way to convert aax to mp3 on mac.
Part 1. Why Convert AAX to MP3?
Although AAX files have been popular among audiobook lovers, they are only can be played on limited Audible compatible devices or apps. For detailed information of audible compatible devices, please check the below table.
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If you want to listen to your Audible audiobook on Sony MP3 player or listen when you are driving, what if you happen to have none of above listed devices? Now if you have the Audible in mp3 format, you will soon break through this dilemma as the MP3 format is the most common used audio format and can be played on almost all popular players. Converting AAX in MP3 is the best solution in many cases.
Part 2. Download Audible to AAX Windows 10/11 in 4 Different Ways
Windows 10 is the most popular system for Windows computer. Here are 4 different ways to download Audible AAX to Windows 10.
Method 1. [The easist way]Download Audible AAX to Windows 10/11 directly from Audible.com
Step 1. Just login to Audible.com with your Amazon account and go to library.
Step 2. Click "Download" button next to the book title you want to convert.
Give it a few minutes, and your audible books will be saved to your computer as .aax format.
This is the easiest way to download audible books to Windows and Mac computer. If you have downloaded audible books to your Windows computer, you can go directly to the next step to convert audible aax to mp3 now.
Method 2. Download Audible AAX to Windows 10 via AudibleSync
AudibleSync is a new downloading app released by Audible.com. It works on Windows 10, 11 & 8.
Step 1. Download AudibleSync.
Step 2. Run Audible Sync and login to it with your Audible account. Go to the Audiblesync library, click "Download" button besides the audible book to download your audible books. Once finished, the “Download" button will disappear.
[Invalid]Method 3. Download Audible AAX to Windows 10 via Audible Download Manager
Updated: Now there is only one choice--aax format, no other download options. Also, it will not require the Audible Download Manager anymore for downloading Audible files.
Step 1. Go to the library page of Audible.com. Since you want to download the AAX format, go to the Audio quality option, and select "Enhanced" at the drop-down list. If you have chosen "Format 4" as the download format, the downloaded audible books will be in AA format.
Updated 2020: There is no "Format 4" option any more.
Step 2. Then click on "Download" button to download the Audible books. But you will get a file with the extension .adh instead of the .aax.
Step 3. Download and install Audible Download manager which is a program that assists in downloading audiobooks from Audible website. This is a must-have software if you want to download Audible audiobooks from the website to your Windows computer. When this software has been installed, click the .adh files to download the Audible audiobooks.
When the Audible audiobooks have been downloaded, click on "Download folder" to open the folder stored the downloaded Audible aax files.
Note: You can also download audible to aax format on windows 7 & 8 by this method. That means you can use the following method to convert aax to mp3 on windows 7 & 8.
[Invalid]Method 4. Download Audible AAX to Windows 10 via Audible for Windows 10 Desktop Application
updated 2022: Audible Windows 10 app is discontinued by Amazon. There is no way to download audible books via this app on Windows computer anymore.
Unlike other Windows system, Audible has released a unique version for Windows 10. Therefore, you can download Audible aax to Windows via the Audible for Windows 10 desktop application.
Step 1 Go to the Windows store and type "Audible" into the search bar and select "Audiobooks from Audible".
Then click on "Get" button to install this software to your Windows 10.
Step 2 Launch Audible for Windows 10 application, and go to the library. Click the download arrow to download the Audible audiobooks.
Step 3 When the audiobook has been downloaded, go to the settings>> Downloads>>click "Open Download location in File Explore" to reach the download aax files.
As you can see from the above picture that you can enable the "Standard quality". No matter you enable "standard quality" or not, audible books you downloaded will be in aax format.
These are four different ways to download Audible books on Windows 11, 10, 8 and 7. I bet you can download your audible books successfully now, but do you know where these downloaded audible books stored on your computer? If you have any difficulties on finding your downloaded audible books, just check where are audible books stored.
Part 3. How to Convert AAX to MP3 Windows 10/11
Since you have already downloaded the Audible aax files, it comes to converting AAX to MP3. Here I will introduce the easiest way to convert AAX to MP3 on Windows 10.
First, please download and install the Ultimate tool--Epubor Audible Converter which is the best Audible DRM Removal as well as audible aax converter. It enables you to convert aax to mp3 within seconds with the original quality preserved. Please remember Epubor Audible Converter works on both Windows and Mac.
Launch Epubor Audible Converter, and then drag and drop the Audible aax files you have downloaded to your Windows 10/11.
Then select "convert to mp3" as the output format from the drop-down list.
Click on "Convert to MP3" button to start the conversion. When the conversion has finished, the folder storing the converted mp3 file will pop up automatically.
Bonus Tips: Split Audible into Chapters and Edit Metadata of Audible Books
Tip 1: Split aax into chapters & Edit metadataIf you are intending to split audible into chapters, Epubor Audible Converter can be the most perfect tool. When you drag audible book into Audible Converter, just click on "Option" button at the end of the book title. Then select "Split by chapters" and click on "OK" button. Go back to the main interface of Audible converter and then click on "Convert to mp3" button. When the conversion finished, the files you get will not be a whole audiobook but mp3 audiobooks in chapters.
Do you want to customize your audible books? Epubor Audible Converter enables to edit your audible metadata including: title, album, artist, copyright, year, genre and comments.
Compared with mp3, m4b audiobooks allow you to store digital bookmarks which make it easier for you to jump to the point where you last left off. And also the m4b format is more suitable than mp3 for an Apple device like iPhone, iPod, iPad or MAC since it's specially used by iTunes to store audiobooks. Follow this guide to convert Audible aax/aa to m4b: Ultimate Way to Convert Audible to M4B [Infographic]. Great to share is converting AAX to M4B will only need 1 minute. You can just download the Audible Converter now to see if this Audible Converter can do it or not.
It is easy to convert Audible aax to mp3 on Windows computer no matter you are on Windows 11, 10, 8 or 7 with the assistant of Epubor Audible Converter. If you are curious about converting aax2mp3 on mac, please read the easiest way to convert aax to mp3 on mac.

Iris Yan has been a passionate member of Epubor since 2017. Her mission is to enhance your ebook reading experience by sharing insightful tips and tricks. Join her on a journey towards reading excellence today!
Why cannot we have a choice that goes straight to MP3?
Here is a tip: If you want to get mp3 directly, you can download audible file as format4(.aa). In this situation, when you drag the aa file to audible converter, it will be decrypted in mp3 directly. You do not have to convert it any more.
John
If you are using the full version, please send one sample to us via support@epubor.com. And we will help you check this issue.
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