how do bands like norma jean, silent civilian, and 36 crazyfists get there scream....iv been tryin different things but all i can really do is get the growl that phoenix mourning and at all cost does

work on using the diaphragm to push alot of air out,

use GAIN on your audio system/PA

it will come out like that

norma jean uses alot of gain.

do i still use that type of high pitched growl or is there another way 2 get that type of "grit/rasp"