Pulse Audio

pacmd list-sinks

# pactl info
Server String: /run/user/1000/pulse/native
Library Protocol Version: 35
Server Protocol Version: 35
Is Local: yes
Client Index: 56
Tile Size: 65472
User Name: dima
Host Name: nb2
Server Name: pulseaudio
Server Version: 17.0
Default Sample Specification: s16le 2ch 44100Hz
Default Channel Map: front-left,front-right
Default Sink: auto_null
Default Source: alsa_input.pci-0000_00_1f.3.analog-stereo
Cookie: 1afe:927b

pactl list

# grep "Codec:" /proc/asound/card*/codec*
/proc/asound/card0/codec#0:Codec: Conexant CX20753/4
/proc/asound/card0/codec#2:Codec: Intel Skylake HDMI