Hi Vince,
I just stumbled over this split-harmonizer you mention: Works really cool on vocals. My used setting on it is 9cent up/down, 10ms l/r, mix 100% when used as send-fx...
Really cool, easy-to-use and FREE!
Ive been using the madshifter and the split harmonizer on individual tracks.
I take vocal track and duplicate twice so there are 3 vox tracks.
I adjust settings depending on the vocals and how they were recorded...I found a decent setting yesterday for Tricia's vox using the madshifter.
Track 1-Compress eq as you would normally (then add reverb or use send)...panned centered
Track 2-Madshifter...+ 8 cents (25% delay)...panned left 100%
Track 3-Madshifter...- 8 cents (0 % delay)...panned right 100%
if 25 and 0 delay doesnt sound great for your vocal take then mess with the dealy %...20,40.25,0 ect.
You can also experiment with adding a flanger on track 2 or 3 or perhaps flanger on both track 2 and 3.
the method above makes for a fuller vocal sound and spreads the vocals and makes them wider.
I like both plugins...split harmonizer and the madshifter...they really add a new dimension to vocals.