pulseaudio device missing
From thelinuxwiki
problem
USB sound device unusable and not found by pulseaudio.
$ pactl list | grep -A 1 "Card #" ~
Card #0
Name: alsa_card.pci-0000_01_00.1
--
Card #1
Name: alsa_card.pci-0000_00_1b.0
solution
restart pulseaudio