Spotify/Bluetooth: Hardware Volume Control on Pi 3 + HiFiBerry Amp - Best Practices

[stifio]

Hi everyone,

I'm trying to get hardware volume control working for Spotify Connect and Bluetooth on my Pi 3 + HiFiBerry Amp 0.9 setup. I'm using Moode Player 9.3.0

I've identified that Moode uses `librespot` and that it's launched with the

Code:

--mixer softvol

option, which is the problem i think. I would like to change `softvol` to

Code:

--mixer alsa --mixer-name 'Channels'

Where do i find the starting options of librespot? And where are the corresponding settings for Bluetooth?


As workaround i have set the master channel to 50% in alsamixer (so i can hear spotify and bluetooth in acceptable volume..) but i guess this is not the propper solution..

What's the recommended way to switch to hardware volume control (using the HiFiBerry's "Channels" mixer)?
 

Thanks for any help!