When this happen with our VW's VIA updated drivers solved it. I have no idea about the Realtek audio, but you might try updating the Audio Drivers. You don't mention installing the Realtek drivers? you should be able to download from Asus download for your model and OS. The windows default audio driver may not be good enough for your NB
G752VY-DH72 Win 10 Pro
512 GB M.2 Samsung 960 Pro
1 TB Samsung 850 pro 2.5 format
980m GTX 4 GB
32GB DDR 4 Standard RAM
Z97 PRO WiFi I7 4790K
Windows 10 Pro
Z97 -A
Windows 10 Pro