Very true. Being able to use learn an engine is key. I kinda just rolled that up in documentation. One of the audio engines I love is FMOD because it has examples for multiple languages and awesome documentation as well as a superb online community.
I have One of the engines I am looking into is an up and coming engine that supports cross platform development called The Vicious Engine
looks very promising has anyone tried this to see what it's support is like and how it works?