Audio desync in Prerendered cutscenes

[Kitsuni]

I've been having this problem for years now and anything I think to look for answers I can't find any. In any game that has prerendered cutscenes such as Final Fantasy 14 or Monster Hunter World the audio will be fine at the beginning but will quickly become desync'd even when running at a steady 60 frames. The video doesn't seem to lag or stutter in any noticeable way and the audio isn't distorted or laggy. No matter what settings I choose, it doesn't help it. I keep my drivers up to date.

Windows10 Pro (though it did the same in windows7)
Intel Core i7 2700K @ 3.50GHz
16.0GB Dual-Channel DDR3 @ 802MHz (10-10-10-27)
ASUS Maximus IV Extreme-Z
4095MB NVIDIA GeForce GTX 970 (previously a gtx570 and gtx780, same thing happened)
ASUS Xonar Pheobus (sound card)
Kingston ssd boot drive with 2 WD black storage drives

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I myself have never found a consistent way to fix it other than not running cut scenes with unlocked frame rates if that is an option.

 

You could also try dropping sample rates to 44100Hz, I have had games that don't play nice at anything other than that.