I uploaded my DxDiag file, just an update i'm still having the issue for all games
on my computer. Its hard to deal with so any information would help a lot.

I would switch the earphones as I did before on my old headset, but i got a new one in which I can't

I'm sorry to bump this or try to rush anything but i'm still having this problem and no matter what I try I still hear sounds inverted only in games. I understand it's not only in arma 3 and not much your problem anymore,but any help would be so great. I've searched google for miles trying to find out what the problem is went thought pages and pages of stuff but still can't resolve the issue, i've tested 3 different headsets with them on the right way and tried many different games and also tested sound out of game, but it seems to only invert in-game. Please help.

It appears it also happends on DayZ SA as well. I'm going to uninstall and reinstall both games, some settings may have been configured when I turned around my old headset and inverted the sounds on it.

It appears I have realtek high definition audio sound card. I also know this must not be a system problem as I have done various right to left sound tests to make sure they were not switched, this is only on arma 3. I'm not sure about other games though, i will test that shortly and reply back.