Please refer to the following tutorial about how to register iTunes DRM Audio Converter and convert DRM-ed Apple Music, audiobooks and M4P audio to DRM-free MP3, AAC & WAV.
Download and Install the latest version of iTunes DRM Audio Converter for Mac to have a try:
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How to register NoteBurner iTunes DRM Audio Converter?
NoteBurner will allow you downloading the program to have a try before buying. But the free trial version can only convert the first 3 minutes of each audio. To unlock the time limitation, you need to register the program.
Step 1. Click menu bar and click NoteBurner iTunes DRM Audio Converter. Choose Registration in the drop-down list, you will get the register window below. Or directly click the red word "Unregistered" to open the registration window.
Step 2. Copy and paste the Name and Code into the registration popup dialog.
Note: The registration name is case sensitive. And, please do not add blank at the beginning or the end of the word.
How to remove DRM from any iTunes audio file?
Step 1. Run iTunes DRM Audio Converter on Mac
Launch iTunes DRM Audio Converter on Mac. You will see the simple and intelligible interface of iTunes DRM Audio Converter.
Step 2. Add Audio Files to iTunes DRM Audio Converter
Click button, then you will see a pop-up window which will show you all the iTunes folders. You can add Apple Music files, audiobooks, and M4P audio in the pop-up window as you want.
Step 3. Set Preferences of iTunes DRM Audio Converter
Click the menu bar "iTunes DRM Audio Converter > Preferences" or directly click button on the program interface, and then there will be a pop up window which allows you to set output path and output audio format. Output format as MP3, WAV & AAC are available to choose.
Step 4. Start Conversion
When finish customization, click "Convert" button to start convertion. If you don't want to convert a certain music, please click button to remove this music before converting. After conversion, you can click button to find the converted audio files.