Not sure which is greater evil, necro posting/reply or starting new thread w/o using search so I went w/ the former.

Just wanted to add my voice to this question as well.  I've been having the sound go out (in game) around the Age of War part in the tech tree.  When I hit D to bring up the debug text, I notice that when the sound is 100/100 it works, but when it is out it's 104/100.  I submitted ticket, but after couple weeks was dismissed as "cooling issue".  While it is a gaming laptop that can run hot, the sound goes out w/ it in the 70's Celsius still.

Good question!

My current game I'm doing an insane so as to get the achievement, but the ones before it were Large or Huge.  I was going to do a Tiny or Small one or such for another reason (I'm an achievement junkie ha) but will make the next one that to test the sound on smaller maps.

As far as laptop config I'm similar situation as you.  Hardware is above recommended, and I've been using Core Temp to track temps.  Happens even when temps are low (well, for a computer/laptop).

I think everyone still has the issue, but you cant send in a save game file, because its intermittent (still works for me one battle, then cuts out half way, then is fine again the next battle and so on).