In fact, I am not very sure how its called in portuguese also... but well, let me explain... I want some program that can CHANGE the voice of the person... like... I speak in the microfone and in REAL TIME the voice comes out different (female voice, or elder voice, or monstruous voice) in the speakers. I had a program that actually came bundled with my Sound Blaster Live card, but I lost the original CD 
So I want a new program that can do the same thing. But I dont even know how to look for such program on the internet, cuz I dont know what "key words" to use to look for such program, cuz I dont know the name of such thing... voice modificator? voice modifier? WHAT?? Please help. Thanks.

So I want a new program that can do the same thing. But I dont even know how to look for such program on the internet, cuz I dont know what "key words" to use to look for such program, cuz I dont know the name of such thing... voice modificator? voice modifier? WHAT?? Please help. Thanks.