@Martin
Ah. to add all of these mic mixers are apart of the same card (codec). So the problem is pulseaudio is not exposing multiple inputs on the same card.
Since you have a USB headset that shows up as a 2nd sound input. But if that USB headset had 2 inputs .. pulseaudio would only expose one.
So you can easily switch between cards (codecs). But if that card has more then one input it is not exposed.
@Martin
Ah. to add all of these mic mixers are apart of the same card (codec). So the problem is pulseaudio is not exposing multiple inputs on the same card.
Since you have a USB headset that shows up as a 2nd sound input. But if that USB headset had 2 inputs .. pulseaudio would only expose one.
So you can easily switch between cards (codecs). But if that card has more then one input it is not exposed.