The spectral editor in Reaper is basically a version of Spectro. You can download an fully-functional evaluation copy of Spectro and check it out.

But Spectro costs $50 and Reaper is $60, you could just as simply just buy Reaper (and learn how to use a new DAW).


-- David Cuny
My virtual singer development blog

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