queen Amidala's voice

I just watched the trailer from episode 1 and amidala's voice is more high piched and immature than in the actual movie. What is with that?

shes still a young lady isnt she... but I thought her voice sounded like the normal Natalie portman voice 😬

that crossed my mind many times.

When she contacts Nute Gunray in the begininng, its the same voice of her decoy who speaks in the arrest scene as well on the Nubian ship en-route to tattoine as well as in front of Chancellor Valorum.

her voice was digitally altered to suit the characters need for a more "royal" voice instead of that high pitched squiel-crap in the trailer