Just for those curious here was a youtube comment I found (not on those videos but another one about the fire temple music):
yes , I confirm , it's arabic islamic praising and here's the translation :
la illaha ila allah : there's no god but god (allah)
bismi allahi rahmani rahim : in the name of God , the most merciful , the most compassionate
allaho akbar : God is the greatest
You can find a lot of information by searching these phrases so I would assume they are correct (slight spelling differences in a few of the terms), and it seems to be widely used:
http://quranicteachings.co.uk/ilah.htm is just one example.