Anybody know anything more of these (just stumbled onto them when doing another search on the net):

ModusX (by ReAud)
http://www.reaud.com/demo/site/reaud.html

SoundScript (by RCT)
http://www.rctechnologies.co.uk/

Naturally I didn't find any downloadable encoders, but a lot of marketing speech.

Are they known in any research circles?