What are the most common effects used for Vocals. For example, what type of effects does Maynard James Keenan(TooL/A Perfect Circle) or Jonathan Davis(Korn) use?
Live maynard from tool uses 2 mics one with a slightly compressed and slight reverb for a natural sound. The other has a multi effects processor. His yell/long held notes have a ton of reverb but is mixed fairly dry so you really only hear the effect after he's done.
Jon from korn uses a ton of compresion and slight reverb. Listen to the hidden version of twist on life is peachy. It's exactly what he uses on the album.