They could in theory implement a sound device for the virtual kernel though I cannot see any information that they have actually done that from a quick search.

They could in theory implement a sound device for the virtual kernel though I cannot see any information that they have actually done that from a quick search. Some people have worked around this issue by setting up pulseaudio for windows and then connecting pulseaudio via network from WSL out to Windows. Works for both WSL1 and WSL2.