Construct 2's audio should work well on most platforms. Are there any specific problems you are having? Our engine already incorporates better workarounds than described in this post such as support for the Web Audio API where available. There should be no need for techniques like sound sprites any more.
I've noticed that Intel XDK wont use construct 2's audio plugin. I've had multiple projects jut not have any sound with .ogg files in XDK.