I just switched from a RaspberryPi B with a HifiBerry DAC running a patched Volumio 1.5 to a RaspberryPi B+ with a HifiBerry DAC+ running Volumio 1.51.
I was up and running in no time and got the system working as before. Volumio rocks !
However, I have the impression that the output is slightly clipping/distorted, especially with Airplay (shairport), less audibly so with MPD. It seems HifiBerry suggests turning down volume control a bit.
One of the differences between the older DAC and newer DAC+ is supposed to be hardware volume control. But I can’t seem to get that working.
I have ‘HifiBerry +’ as i2s driver, ‘sndrpihifiberry’ as audio output and ‘Hardware’ as volume mixer control.
type "alsa" name "Output" device "hw:0,0" mixer_control "PCM" mixer_device "hw:0" mixer_index "0" dop "no"
I can’t control volume, not in the UI, and I can’t find how to do it with amixer command line, it does not seem to know any device/card (aplay -l can’t find any).
Has anyone figured this out ?
Anyone with the same setup ?