Ultimately, by practicing over and over again.
However, as a quick means, you may find a helium balloon, poke a hole in it and inhale the helium. This will make your voice high pitched, for a brief time.
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Inhaling helium is a dangerous and possibly life threatening stunt. Don't do it. What you can do is record your voice, and speak slowly. Then play the recording back, but at a rate faster than the record rate. You will find a combination that makes you sound like Marvin in the Chipmunk songs.
By learning chipmunk language at Alvin and Chipmunks Language Leaner Association.Try It it is amazing. u can learn chipmunk language in three days.
almost flat comparred to the later version and now. Here's what they looked like
Alvin likes Brittany from the chipettes.Alvin
Alvin, Theodore, and Simon.
David "Dave" Seville .
simon
A chipmunk can wild and crazy like alvin but the only way it could actually talk is if its vocals were similar to ours.
well, Alvin the chipmunk has been to Hollywood
Jesse MCcartney
Alvin from Alvin and the chipmunks
"Alvin? Alvin? ALLLLLLLVIN !"
Alvin wants a hula hoop!This is in one of their songs.
not relly
Alvin and the Chipmuncks
Alvin
yea
It's Alvin, Simon, and Theodore