Here are some sound clips taken from Japanese and US version DragonBall series and movies.

Dragon Ball GT background theme - Japanese Version(654 kb)
Piccolo saying "Don't Worry" - US Version(246 kb)
Gotenks saying "Ayasessa" - Japanese Version(183 kb)
Gokou screaming "KaMeHaMeHa" - Japanese Version(77 kb)
Piccolo screaming "Masenko" - Japanese Version(23 kb)
Shen Ron Dragon granting a wish - Japanese Version(90 kb)
Vegeta's Ki Burn Attack - Japanese Version(84 kb)
Vegeta and Nappa surprised! - US Version(382 kb)