Rock3/dev/radxa-e23-audio
ROCK 3 > Development > Radxa E23 Audio Test
Description
This guide describes how to Test Mic and Headphone on Radxa E23.
- Step 1:Set up sound card
amixer -c 0 cset numid=2 2
- Step 2:Sound recording
arecord -D "plughw:0,0" -f S16_LE -r 16000 -d 5 -t wav /tmp/test.wav
- Step 3:Play audio
aplay -D plughw:0,0 /tmp/test.wav