How do those vocal remover's isolate the vocal to remove in a song?

Just about all of them cancel the center channel by subracting the left from
the right. Because vocals are nearly always panned dead-center, they are
removed. The down side is that bass guitar and bass drum are also often
dead center too, so they are often removed as well. You can get around this
somewhat by mixing in a low-pass filtered version of the original signal in
with the center cancelled signal.

Bill Ruys

"Matt" wrote in message
om...
How do those vocal remover's isolate the vocal to remove in a song?

In article ,
Matt wrote:
How do those vocal remover's isolate the vocal to remove in a song?

This is discussed in the FAQ.
Basically, they remove everything common to both channels, so everything
mixed to the center drops out. Sometimes this is just the vocals. Sometimes
it can be a lead guitar also. On distant field recordings, it's usually
nothing useful at all. Most of the boxes have some additional filtering
so that low frequency stuff is not removed, since that material tends to be
panned to the center as well.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."