Audio issues following the patch

Following the 2.28 patch, my gf began to have an issue with streaming audio while playing FFXIV:ARR.

The streaming audio begins to crackle and play at a slower rate than normal, distorting the sound.

This issue is only present with FFXIV:ARR running.

-Audio driver up to date
-Windows up to date
-Bandwidth is normal, no connection issues
-completely turning off in-game sound had no effect.

Any ideas/troubleshooting tips?

Thanks in advance :)