Rock3/dev/radxa-e23-audio - Radxa Wiki

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  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

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