回帖：- 输入 aplay -L查看声卡：
root@armbian:~# aplay -L

null
Discard all samples (playback) or generate zero samples (capture)
hw:CARD=P230Q200,DEV=0
P230-Q200,
Direct hardware device without any conversions
hw:CARD=P230Q200,DEV=1
P230-Q200,
Direct hardware device without any conversions
plughw:CARD=P230Q200,DEV=0
P230-Q200,
Hardware device with all software conversions
plughw:CARD=P230Q200,DEV=1
P230-Q200,
Hardware device with all software conversions
default:CARD=P230Q200
P230-Q200,
Default Audio Device
sysdefault:CARD=P230Q200
P230-Q200,
Default Audio Device
dmix:CARD=P230Q200,DEV=0
P230-Q200,
Direct sample mixing device
dmix:CARD=P230Q200,DEV=1
P230-Q200,
Direct sample mixing device
root@armbian:~# aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
hw:CARD=P230Q200,DEV=0
P230-Q200,
Direct hardware device without any conversions
hw:CARD=P230Q200,DEV=1
P230-Q200,
Direct hardware device without any conversions
plughw:CARD=P230Q200,DEV=0
P230-Q200,
Hardware device with all software conversions
plughw:CARD=P230Q200,DEV=1
P230-Q200,
Hardware device with all software conversions
default:CARD=P230Q200
P230-Q200,
Default Audio Device
sysdefault:CARD=P230Q200
P230-Q200,
Default Audio Device
dmix:CARD=P230Q200,DEV=0
P230-Q200,
Direct sample mixing device
dmix:CARD=P230Q200,DEV=1
P230-Q200,
Direct sample mixing device
hw:CARD=AUDIO,DEV=0
SUCA AUDIO, USB Audio
Direct hardware device without any conversions
plughw:CARD=AUDIO,DEV=0
SUCA AUDIO, USB Audio
Hardware device with all software conversions
default:CARD=AUDIO
SUCA AUDIO, USB Audio
Default Audio Device
sysdefault:CARD=AUDIO
SUCA AUDIO, USB Audio
Default Audio Device
front:CARD=AUDIO,DEV=0
SUCA AUDIO, USB Audio
Front output / input
surround21:CARD=AUDIO,DEV=0
SUCA AUDIO, USB Audio
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=AUDIO,DEV=0
SUCA AUDIO, USB Audio
4.0 Surround output to Front and Rear speakers
surround41:CARD=AUDIO,DEV=0
SUCA AUDIO, USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=AUDIO,DEV=0
SUCA AUDIO, USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=AUDIO,DEV=0
SUCA AUDIO, USB Audio
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=AUDIO,DEV=0
SUCA AUDIO, USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=AUDIO,DEV=0
SUCA AUDIO, USB Audio
IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=AUDIO,DEV=0
SUCA AUDIO, USB Audio
Direct sample mixing device