I have had this happen also, mainly crashing in dungeons when the gate drops or randomly in limsa and sound cutting out completely during large skirmishes in Zandor trying to level classes past 81.
Latest updates to all drivers including sound drivers(Realtek).

OS: Windows 10 (ver. 19044.1645)
CPU: Intel i7 9700F
GPU: Asus Windforce RTX 2070Ti
RAM: 32GB 3600mhz