I do it all the time. If you listen to virtually ANY of my recent tracks, you can hear me doubling ALL my vocal tracks. I have cancelled out most of the phasing with delay, and thus it becomes more a 'chorus effect' or doubling sound. A few milliseconds longer and you start to hear actual echo and less of a phasing/doubling(chorus). Sometimes I roomverb one of the tracks and centre mix the other. It gives my voice a sort of haunting feel along with a good channel spread.DevonB wrote:Have you tried doing it that way to avoid phasing? It sounds unnatural still. Multiple takes has been the only way I've found to get it to sound right. I usually stack 4 tracks of guitar for my guitar sound, for example. Yes, it's a pain, but it works....xander wrote: Indeed, there's that problem as well. There are a couple of ways you can avoid phase-effect though, like with delay -- especially on non-articulated tracks that are mainly ooos and ahhhs and have no vocal inflections, and you can also filter the phasing or 'reverse-phase' a track so that it nulls the cross-phasing between it and a copy. But I believe they really did all those separate layers as he said.
Devon
Anyway though, I agree it's way preferable just to cut new tracks and layer that way, just as you would with instruments -- esp since you don't have those artifacts to deal with and have more flexibility.
I did a session with MB once. It was one of the worste experiences in the studio I have ever had. Nightmare. Nothing worked and he was... well... you can imagine. I think the movie Office Space best sums it up. 
I was referring to just sliding your original recorded tracks around by a few samples. That's never sounded right to me no matter what I've applied it to, but nonetheless, it's a way to get that phasey effect if ya like it. 