Hey I had read that Volumio supports USB-Audio by default.
I tried 3 different USB-Audio-doggles all working on Ubuntu and Windows but non of them worked on my raspberry Pi 3B with Volumio installed (newest version).
The USB Devices are recognized by Alsa but not used for audio output. (aplay -l shows them)
I somewhat managed to get things running but very poorly. Maybe you got some hints if they are supposed to play easier:
First I tried to configure by creating /etc/asound.conf (spotify-connect-volumio-with-usb-sound-card-t4658.html). Did not changed anything.
Then I tried to modify /etc/modprobe.d/alsa-base.conf (superuser.com/questions/626606/ … omatically @post from Ashildr) This did not really changed anything.
I blacklisted with /etc/modprobe.d/blacklist.conf the onboard sound (same disscussing @post by user533723).
After that I changed the /etc/mpd.conf (bbs.archlinux.org/viewtopic.php?id=175726 here device “hw:0,0” to device “hw:5,0”) Did work! Unfortunately this somehow did not allow “spotify connect” to play (sound was muted) and did not allow to change volume in the WebUI anymore, but at least I got sound from USB.
So trying to revert my changes as good as I could but probably I messed it up or something stayed changed. The Sound is still at constant volume. Guess I will reinstall.
Is the USB-support buggy at the moment or was it never supposed to be supported out-of-the-box?