Shairport-sync volume vs. Roon volume

The Shairport-sync with volume control enabled or disabled is very low compared to the Roon volume which is excellent. Is there a way to control the Shairport volume low and high settings or control the Shairport-sync volume control settings so they are more similar?

In the shairport-sync.conf you’ll have to define the hardware volume mixer (find the name in alsamixer) in the back-end settings. See this conf file for reference: https://github.com/mikebrady/shairport-sync/blob/master/scripts/shairport-sync.conf

mixer_control_name =