I currently use LAUD V2.2. It was cheap at time of purchase and it
enables one to make accurate F.R. plots.Much cheaper then MLSSA of TEF.The only downside is that the H.T. is not correct.
I think this is due to the souncard's antialiasling filtering which causes early phase shifts.
The other problem is that the manufacturer has moved on to PRAXIS
and doesn't seem to want to support the older LAUD anymore!?Hmmm one wonders what will happen when PRAXIS gets superceeded??