I have a computer acting as a sound server, managed by Pulseaudio. All computers on my LAN send sound to that machine. It has a Kenwood digital audio device connected to it.
When I open
pavucontrol on that sound server, it looks like this:
So far so good. The
GF108 is, as I've learned, a sound controller on my Nvidia card, and the
Built-in Audio is the motherboard's sound chip, and the
Kenwood Audio Device is the one I want to use.
However, when I click on the
Profile: option, I get this pop-up menu of options:
Why does this one device have 15 different options, and what is the difference between them?
I have, of course, tried different ones, and they all seem to work. Why would I select one over any other?
Additional note for some context: My motivation for looking into this is that currently my sound set up has two problems. One is that it can't play more than one sound at a time - any app that is playing a sound takes exclusive control, and starting a sound in a new app causes freezes or crashes. My sound setting used to be able to play multiple streams so I think this should be possible. The other problem is that volume settings are hard to control.