Ollie, I'm lost.
I use my Behringer PMH2000 mixer into my computer soundcard to multi track record into CEP.
I don't honestly know how to "compress vocals" or even what that means. I use the volume setting of "normalize" and do that to like 94% when the mix is completely done... I don't know if that means anything to you.
My mixer volume is up (from the vocal channel)... my sound card line in on my PC is under 1/2 way. (errr, 45% volume input)
Is compressing vocals something you do "after" recording the vocal or "as" your recording the vocal?
Really, yeah, I'm that dumb.