Replay gain working with Volumio

You can configure MPD to turn on replay gain – have a look at https://linux.die.net/man/5/mpd.conf for details.

You should be able to test it with –

echo 'replaygain "track"'  > /etc/mpd.conf
systemctl restart mpd

Do note this isn’t a permanent solution. For that you need to go and edit the mpd.conf.tmpl file over in /volumio/app/plugins/music_service/mpd/

Good luck!