If you want an in-depth explanation (AP mostly skims the surface) : <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=d3kfEeMZ65c" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=d3kfEeMZ65c</a>  is a must-watch.  
Obviously, it does not cover the work accomplished these past two years, but it gives a good idea of the challenges of audio latency on Android