I've got a question.

In the song "The Secrets of the Black Arts" by Dark Funeral, there are the standard black metal vocals, but there are also these lower, growl-type vocals. They don't really sound like death growls though. I've heard this in other black metal songs, but I think "Secrets" is the best example.

http://profile.myspace.com/index.cf...iendID=11713147

Listen to the first vocals in the song. The low "WHOAAAAAAA" sound.

Does anybody know how to do those?