Susan Bugher wrote:
wrote:

Just something I've never been able to figure out.
How do they remove the vocals on KARAOKE music?

Does anyone know?

I thought it might be to filter out certain frequencies, I tried that on
an audio processor, and it dont work. The instruments use some of those
same freqs. My only other guess is that the recording companies record
the vocals separately and they create the karaoke versions, but there
are karaoke titles for some oldies music, which was recorded long before
karaoke was even heard of...

Re oldies music. Below are a couple of Freeware apps for "vocal removal".
Both have explanations of how their programs work (and both note that
their techniques don't always work).

Program: Karaoke Anything!
Company: karaokeanything.com
Wa Freeware
http://www.karaokeanything.com/

Program: Vocal Remover
Author: Analog X
Wa Freeware
http://www.analogx.com/contents/down...r/Freeware.htm

Susan

Voice on most recordings are center, mono. That's in phase with left and
right. So, you can subtract that, with the out of phase music sounds cannot
be phased out.
you will often hear remnants of voice anyway.

Greg