You can check out an example of dereverberation software here:

http://www.alango.com/technologies-dereverberation.php

If you listen to the demo, you can hear a ton of artifacts.

Since reverberation is primarily a delayed version of the original signal, the program has to figure out what the signal lag is, and then reconstruct the signal with the lagged signal removed.

In addition to the Acorn Digital dereverberate program I mentioned, there's also Zynaptiq's Unveil. It's an older plugin, but it's also available as a time-limited demo. (I'd put in a link, but the Zynaptiq site isn't connecting at the moment).

I also see proximity:EQ⁺ is listed as able to tame "natural reverb", and is available for a free 30 day trial.

I'm sure they specify "natural reverb" because one of the tricks of machine-based reverb is to modulate some portion of the signal to make it richer. Of course, that just makes the dereverberation problem even harder to solve.

-- David Cuny
My virtual singer development blog

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