Sorry Mark, I have a hard time being serious early in the morning. Actually, there are lots of hardware solutions. I have three different 'Voice Processors' that do a fine job of changing your voice into a simulated 'female' voice. I don't sing and am not in my studio now so I can't name them, but one is called FX Live or something like that. When I go down to my studio later, I'll post the names.

chas