I am curious about PCM to DSD conversion in roon as well. Is there a guide on how to setup this up, or is it a mythical feature?
Have a read in the Roon Knowledge Base there’s a lot of information in there.
This two sections should help you:
Then come base with any specific questions you might have.
You need a DSD capable output though, for example I have a DragonFly Red which does not support DSD so I can’t us DSD.