I use Nuendo 4.3 - when I use an external device with the ASIO plugin and let the plugin detect the latency caused by the loopback, it comes up with a different latency measurement every time.
I use an AES-16 card an UA 2192 converter.
The last time I was in a masterin studio in town with Nuendo 4.3, they had the same issue.
Any idea what causes this variation? How do I know when Nuendo found the right latency compensation setting?