Apple Audio Aac

About lossless audio in Apple Music - Apple Support

https://support.apple.com/en-us/HT212183

Purchasing "Apple Music AAC audio files"? - Apple Community

https://discussions.apple.com/thread/251522760

I want to do the same with several other "Apple Music AAC audio files". I have an iMac (27-inch, Mid 2011) running iTunes 12.2.8.3 on MacOS High Sierra 10.13.6. I apparently am not able to upgrade MacOS or get the new Apple Music app.

AAC Bluetooth codec only acceptable on Apple phones ...

https://soundguys.com/the-ultimate-guide-to-bluetooth-headphones-aac-20296/

Apple Lossless vs AAC : Which Is Better - DRmare

https://www.drmare.com/reviews/apple-lossless-vs-aac.html

About lossless audio in Apple Music – Apple Support (AU)

https://support.apple.com/en-au/HT212183

Audio Unit - Apple Developer

https://developer.apple.com/documentation/audiounit

AAC Apps

https://www.aacapps.com/

Dialogue ™ AAC is an iOS app designed for literate individuals who require AAC (augmentative and alternative communication). Based around a keyboard, word prediction, and quick phrases, Dialogue ™ AAC offers intuitive programming, a variety of access methods, and free integration of a personalized voice and message banking. Visit the website.

2021 Apple lossless vs AAC: Which Is Better?

https://www.tunesfun.com/apple-music-converter/apple-lossless-vs-aac.html

Advanced Audio Coding or AAC is a standard lossy digital audio coding that was produced by conglomerate companies including Sony, Nokia, Dolby, and AT&T Bell Labs. This kind of format can be played on both Apple and non-Apple devices.