HDSPconf missing setting...

[juanpc2018]

$ alsamixer v1.2.2

HDSPconf 1.4 from alsa-tools-gui

i dont know why is called DDS Sample Offset

but it should be like HDSPmixer

DDS "Sample Offset" is similar to a PLL with a more aggressive rejection of the external clock signal.
IF external clock coming from s/pdif is better vs. RME DDS 200pico second jitter clock, worsens the clock.
like a blend control:
0% preference for internal DDS clock = 100% preference for external clock,
100% preference for internal DDS clock = 0% preference for external clock.
at:
100% DDS DDS is the Truck, still follows ext.clock, as a recommendation, Not like an Orchestra_Director
0% DDS, ext.clock becomes like a Whip, internal like a Horse / Slave / Circus Lion DDS is the Lion.
Clock Jitter