arecord -l
returns:
**** List of CAPTURE Hardware Devices **** card 0: Generic [HD-Audio Generic], device 0: ALC1220 Analog [ALC1220 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Generic [HD-Audio Generic], device 2: ALC1220 Alt Analog [ALC1220 Alt Analog] Subdevices: 1/1 Subdevice #0: subdevice #0
arecord -c 2 -r 44100 -f S32_LE -d 10 --device="hw:0,0" /tmp/test-mic.wav
Recorded audio via microphone specified by –device=“hw:0,0” as in card 0 and device 0 from the arecord -l output in the previous step.
arecord -d 10 -f cd -t wav /tmp/test-mic1.wav
aplay /tmp/test-mic1.wav