Thank you for the reply NikolasCalypso.

Do you have any external speakers that your can plug in? Does this result in the same issue?

I would suggest disabling all other programs when you play the game. Also try doing a clean boot. Simply open the task manager and select the 'Start up' Tab. Disable everything here and restart the PC. This will make sure that no program that may be interfering with your audio is running in the background.

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