################################################################################
# ... output of aplay -l
# LibreELEC release: Generic.x86_64-9.2.0
# 
################################################################################
**** List of PLAYBACK Hardware Devices ****
card 0: HDAV13H6 [Xonar HDAV1.3+H6], device 0: Multichannel [Multichannel]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: HDAV13H6 [Xonar HDAV1.3+H6], device 1: Digital [Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

################################################################################
# ... output of aplay -L
# LibreELEC release: Generic.x86_64-9.2.0
# 
################################################################################
null
    Discard all samples (playback) or generate zero samples (capture)
default:CARD=HDAV13H6
    Xonar HDAV1.3+H6, Multichannel
    Default Audio Device
sysdefault:CARD=HDAV13H6
    Xonar HDAV1.3+H6, Multichannel
    Default Audio Device
front:CARD=HDAV13H6,DEV=0
    Xonar HDAV1.3+H6, Multichannel
    Front speakers
surround21:CARD=HDAV13H6,DEV=0
    Xonar HDAV1.3+H6, Multichannel
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=HDAV13H6,DEV=0
    Xonar HDAV1.3+H6, Multichannel
    4.0 Surround output to Front and Rear speakers
surround41:CARD=HDAV13H6,DEV=0
    Xonar HDAV1.3+H6, Multichannel
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=HDAV13H6,DEV=0
    Xonar HDAV1.3+H6, Multichannel
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=HDAV13H6,DEV=0
    Xonar HDAV1.3+H6, Multichannel
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=HDAV13H6,DEV=0
    Xonar HDAV1.3+H6, Multichannel
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=HDAV13H6,DEV=0
    Xonar HDAV1.3+H6, Multichannel
    IEC958 (S/PDIF) Digital Audio Output
hdmi:CARD=NVidia,DEV=0
    HDA NVidia, HDMI 0
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=1
    HDA NVidia, HDMI 0
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=2
    HDA NVidia, HDMI 0
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=3
    HDA NVidia, HDMI 0
    HDMI Audio Output

################################################################################
# ... output of amixer
# LibreELEC release: Generic.x86_64-9.2.0
# 
################################################################################
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right - Rear Left - Rear Right - Front Center - Woofer - Side Left - Side Right
  Limits: Playback 135 - 255
  Mono:
  Front Left: Playback 255 [100%] [0.00dB] [on]
  Front Right: Playback 255 [100%] [0.00dB] [on]
  Rear Left: Playback 255 [100%] [0.00dB] [on]
  Rear Right: Playback 255 [100%] [0.00dB] [on]
  Front Center: Playback 255 [100%] [0.00dB] [on]
  Woofer: Playback 255 [100%] [0.00dB] [on]
  Side Left: Playback 255 [100%] [0.00dB] [on]
  Side Right: Playback 255 [100%] [0.00dB] [on]
Simple mixer control 'Line',0
  Capabilities: cswitch cswitch-joined
  Capture channels: Mono
  Mono: Capture [on]
Simple mixer control 'Mic',0
  Capabilities: cvolume cvolume-joined cswitch cswitch-joined
  Capture channels: Mono
  Limits: Capture 0 - 31
  Mono: Capture 0 [0%] [-34.50dB] [off]
Simple mixer control 'Mic Boost (+20dB)',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'IEC958',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'IEC958 Loopback',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'IEC958 Validity Check',0
  Capabilities: cswitch cswitch-joined
  Capture channels: Mono
  Mono: Capture [off]
Simple mixer control 'Aux',0
  Capabilities: cvolume cswitch cswitch-joined
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 31
  Front Left: Capture 23 [74%] [0.00dB] [off]
  Front Right: Capture 23 [74%] [0.00dB] [off]
Simple mixer control 'Analog Input Monitor',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 1
  Mono: Playback 1 [100%] [0.00dB] [off]
Simple mixer control 'DAC Filter',0
  Capabilities: penum
  Items: 'Sharp Roll-off' 'Slow Roll-off'
  Item0: 'Sharp Roll-off'
Simple mixer control 'De-emphasis',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Digital Input Monitor',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 1
  Mono: Playback 1 [100%] [0.00dB] [off]
Simple mixer control 'HDMI',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Stereo Upmixing',0
  Capabilities: enum
  Items: 'Front' 'Front+Surround' 'Front+Surround+Back'
  Item0: 'Front+Surround'