I play bass in hardcore-punk-metalcore band and I also handle backup vocals and screams. I can get a very deep growl, but when I try to get a nice midrange to high scream, I usually crap out and make funny noises. I don't feel like I have enough volume or power to do so. So I would really appreciate if anyone could give me tips on how to get the sound I am going for.
Examples: Atreyu, Norma Jean, Killswitch Engage, Every Time I Die