chronos@localhost / $ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 10: HDMI 4 [HDMI 4]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: broadwellrt286 [broadwell-rt286], device 0: System Playback/Capture () []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: broadwellrt286 [broadwell-rt286], device 1: Offload0 Playback () []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: broadwellrt286 [broadwell-rt286], device 2: Offload1 Playback (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0