Hi Carl
I have used EMC Styleworks 2000 to convert a few Roland and Technics files to Ketron SD1(it doesn't have Audya) and into my Audya. Usually fairly accurate, but sometimes a wrong instrument is assigned. However, the results are never going to be as good as an authentic Audya style.

To put a converted style into Audya, you load the converted .pat style into User Styles. I usually audition the style in a pen drive and copy over if I like it.

Bernie