In the film, house atredies had already developed the modules and planned to use them simply as a sonic weapon.

The whole thing about the weirding way was that it was taught to the bene gesserit sisterhood as a martial art form; in the book the weirding way and the Voice are two different things.... but i'm open to correction!

Still though i reckon the potential for Dune in unisystem is high: a vast imperium, intrigue among the houses, and of course legions of bad ass Sardukar!

(Yes i like Dune)