Quoting Stefano D'Angelo <zanga.mail(a)gmail.com>om>:
It would work like this:
stereo input -> hosts converts to 5.1 (the effect states it needs 6
channels) -> apply effect with 6 in channels and 6 out channels -> 5.1
output
How would the host convert the stereo input to 5.1? In my view, that is the
whole purpose of the effect.
Sampo