Audio will not play through headset.

[kluter]

Today, when I loaded up DDO the audio no longer plays through my headset. (Hyper X Cloud Alpha). Headset audio has worked as recently as yesterday, and I can't think of anything which has changed since then. Here is what I have tried and checked:
- Audio still works through my headset for other things (Youtube, windows, discord)
- Audio works properly through a different audio device, like my speakers.
- DDO Is not muted in the windows volume mixer.
- Sound playback is set to the correct device.
- Headset is on, volume settings are turned up.
- Resetting all audio settings to default.
- Restarting DDO, and my PC.
- Validating game files, and even uninstalling/reinstalling DDO.

I'm out of ideas, does anyone have any solutions to this issue?