I have a small USB dac that I use with my laptop.
When I plug it into my laptop, there's two outputs added:
Digital Output (S/PDIF) - PCM2706 stereo audio DAC
Analog Output - PCM2706 stereo audio DAC
In order to be able to control the volume, I need to have the Digital Output selected. For some reason when I plug it in, it selects the analog output by default (probably a pulseaudio issue and not a budgie issue)
However, if I try opening the budgie raven menu and changing the output to the digital one there, nothing happens. I check the box for the digital output and it just remains on the analog one.
If I go to gnome settings manager | sound tab and select it there it works fine. The digital output becomes the active one and I can change my volume with the keyboard media keys without issue.