Audiotool board archive

hi! im trying to make a dubstep song and i need grolws like in scary monster (skrillex song) .

u know those big loud growls ....i want some but i cant do them.

ive been working on the sound for a while now and still nothing so plz if someone can help me plz tell me how.

btw i dont have audiotool next (broken pc) i just have the normal audiotool.

so.....plz help me.