While correcting tempo problems in a DAW is tedious, it's certainly possible. Here's a track I put together using exactly that process:

How Great Thou Art

The mix has faults a-plenty. In particular I went overboard with the BiaB instruments!

It's always better to re-record if possible, but since the choir disbanded after I made the recordings, that wasn't possible.

The source recording is really terrible, recorded from a mono output of the church PA system into a laptop. There's all sorts of background noise, people to close or far from their mikes... You name it. In addition to tempo-mapping the source material, I've also cut and pasted, and layered multiple different takes to get around problems.

It's not anywhere close to professional, but it shows that it can be done.

Last edited by dcuny; 04/12/12 01:28 AM.

-- David Cuny
My virtual singer development blog

Vocal control, you say. Never heard of it. Is that some kind of ProTools thing?