Roon message error: “Audio device in use”

Here are some other threads with the same issues, it might help with your issue:

  1. Devialet “Audio Device in Use” - #2 by ged_hickman1
  2. "Audio Device in Use" - Devialet D200 - #13 by Ced_Rachmad
  3. "Audio Device in Use" message - #6 by john