$ aplay -L | awk -F'[:,]' '/CARD=/&& !a[$2]++'
hw:CARD=PCH,DEV=3
hw:CARD=Device,DEV=0
hw:CARD=Loopback,DEV=0
66 ffmpeg -i VSQSE_0407_Japanese_thunder_01.mp3 -f alsa plughw:CARD=CM47730757,DEV=0
SDL_AUDIODRIVER="alsa" AUDIODEV="hw:CARD=PCH,DEV=3" ffplay -nodisp VSQSE_0407_Japanese_thunder_01.mp3
$ mpv --audio-device=help | awk -F'[ :,]+' '/alsa\/plughw:/ && !a[$3]++'
'alsa/plughw:CARD=PCH,DEV=3' (HDA Intel PCH, HDMI 0/Hardware device with all software conversions) 'alsa/plughw:CARD=Device,DEV=0' (USB Audio Device, USB Audio/Hardware device with all software conversions) 'alsa/plughw:CARD=Loopback,DEV=0' (Loopback, Loopback PCM/Hardware device with all software conversions)
mpv --audio-device=alsa/plughw:CARD=PCH,DEV=3 VSQSE_0407_Japanese_thunder_01.mp3