"Scott Dorsey" wrote in message
...
My console has "phase invert" buttons on each channel. Most DAW systems
have something similar.

I will warn you that wide panning where you pan a track to one side and
an inverted version of the same track to the other side can give you a
very diffuse and airy sound, but when you play it back in mono it goes
away. Fun trick, but watch mono compatibility.
--scott

I have a CD of the best of the Mamas and Papas that has some good examples
of the effect. It's kind of fun to push the mono button and hear Mama Cass's
voice dissappear.

Stuart