Getting the most out of your keyboard's vocal processor often involves a lot more research and work than most performers are willing to put forth. Fortunately, Dan Rymut (aka "big741") has compiled a great tutorial that takes all the guesswork out of getting that vocal processor to sound great. You'll find the detailed instructions at the PSR Tutorial
------------------ Travlin' Easy
PSR-S950, Bose L1 Compact, TC Helicon Harmony-M, Digitech VR (2), Crown CM311A, Samson Q7, Sennheiser E855, Custom Console, Morgan 33 Out Island Sailboat, and lots of other silly stuff!