i think its just some computerized sounds...
Most random lyrics ever...

"thunder pounds when i stomp the ground like a million elephants and silverback orangutans you cant stop a train" - B.O.B - Outkast
Erm, it sounds like an Auto-Wah to me...
Anybody agree?

Edit: ^ Yeah, an Auto-Wah/Envelope Filter
Gonna Leave this town

Gotta leave this town

Gonna make a whole lotta money

Gonna be big yeah...
(Jimi Hendrix - Hear My Train A Comin')