This is a 4in/4out device with 1 analog stereo out and 2 analog mono in.
The hardware mixed loopback interface takes up the remaining 4 channels.
Without this UCM the device is configured as 4.0 surround for in and out.
I copied the Windows config except for the stereo mic mix.
Modifying hardware volumes/gain other than main output seems to require
a driver or external software similar to the one found on github at the
repo github.com/vijay-prema/audient-evo-linux-tools
Closes: #303 Closes: https://github.com/alsa-project/alsa-ucm-conf/pull/708 Signed-off-by: Edward Matijevic <motolav@gmail.com> Signed-off-by: Jaroslav Kysela <perex@perex.cz>