################################################################################
# ... output of aplay -l
# LibreELEC release: Generic.x86_64-8.0.2
# 
################################################################################
**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 0: ALC662 rev3 Analog [ALC662 rev3 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

################################################################################
# ... output of aplay -L
# LibreELEC release: Generic.x86_64-8.0.2
# 
################################################################################
null
    Discard all samples (playback) or generate zero samples (capture)
hdmi:CARD=HDMI,DEV=0
    HDA Intel HDMI, HDMI 0
    HDMI Audio Output
default:CARD=PCH
    HDA Intel PCH, ALC662 rev3 Analog
    Default Audio Device
sysdefault:CARD=PCH
    HDA Intel PCH, ALC662 rev3 Analog
    Default Audio Device
front:CARD=PCH,DEV=0
    HDA Intel PCH, ALC662 rev3 Analog
    Front speakers
surround21:CARD=PCH,DEV=0
    HDA Intel PCH, ALC662 rev3 Analog
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=PCH,DEV=0
    HDA Intel PCH, ALC662 rev3 Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
    HDA Intel PCH, ALC662 rev3 Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
    HDA Intel PCH, ALC662 rev3 Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
    HDA Intel PCH, ALC662 rev3 Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
    HDA Intel PCH, ALC662 rev3 Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers

################################################################################
# ... output of amixer
# LibreELEC release: Generic.x86_64-8.0.2
# 
################################################################################
Simple mixer control 'IEC958',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]