I am running Ubuntu 14.04, and my sound works just fine. However, when I open the
Sound dialog, I notice that under
Input there are two available options
As far as I can tell, my laptop has an integrated microphone and a small port where I can connect an external microphone, but this does not explain the two entries since I think they are both receiving input from the built-in microphone.
So, what is the difference?
Addition: I should note that both of the actually work just fine. I did some more investigation using
pavucontrol which actually gives three options
I still don't quite understand what is going on, and why there are additional options. Perhaps a
pulse expert can jump in?