Linux Host and Windows Guest share audio?

I made a thread about my audio issues after PCI passthrough here

However, I would still like to know if it is possible for me to hear both the audio from my VM and the audio from my host with one set of heaphones.

I looked into streaming system audio with PulseAudio but since there is no GUI frontend for windows its not really ideal. What I need is a solution like Synergy but for audio instead of KB & M.