Change voice modifier

[KadMac]

After recently watching Tron Legacy in the movie theater, I loved how the different soldiers and those who wore helmets sounded with their voices modified. Is there a program available that could help me replicate that with my own voice? Their voices sounded very electronic.

 

[Hanuman.c]

You could use some sort of plug in like, a vocoder, auto-tune, vocal transformer in logic.

but you would need some kind of recording software, garage band would do...