homekit/doc/arecord_orange_pi.md

Orange Pi Lite

To record audio on Orange Pi Lite:

• enable audio codec in armbian-config
• put this to /etc/rc.local (and make it executable):

  for v in unmute cap; do
      /usr/bin/amixer set "Line In" $v
      /usr/bin/amixer set "Mic1" $v
  done
  
  for k in "Mic1 Boost" "Line In" "Mic1"; do
      /usr/bin/amixer set "$k" "86%"
  done
  

Orange Pi PC2

#!/bin/bash

for v in unmute cap; do
  /usr/bin/amixer set "Line In" $v
  /usr/bin/amixer set "Mic1" $v
  /usr/bin/amixer set "Mic2" $v
done

for k in "Mic1 Boost" "Line In" "Mic1" "Mic2 Boost" "Mic2"; do
  /usr/bin/amixer set "$k" "86%"
done

Orange Pi 3 LTS (Allwinner H6)

See script.

arecord -v -f S32 -r 44100 test.wav