Good morning and thank you for posting on the Final Fantasy XIV Technical Support Forums.

When did this start happening? Did anything change/update on your PC that coincides with this?

Based on your information, it sounds like your audio drivers are crashing. What do you use for sound (speakers, headphones, etc) and how is it connected (wireless, USB, 3.5 jack)?

How often does this happen and do you notice any pattern to the crashes? Is it linked to any on location or action you are doing (inside or outside the game)?

What have you tried so far to alleviate the error?

We hope we can be of assistance in helping you enjoy the exciting world of Final Fantasy XIV!