🚀 go-pugleaf

 In a previous article, zong@imec.UUCP (Zong Liang WU) writes:
>Hi net-landers,
>
>I am interested in removing voice from background 
>accompagning music. The idea is that you have a CD of
>popular songs, if you can remove the singer's voice, 
>you can enjoy it with your own voice as a super star 
>(like with karaoke).

Here in the USA, they sell small boxes that claim to be able to accomplish
this task.  My understanding of how they work follows.  I have no idea if
they actually do work, or how well.

When a song is recorded, the standard method is to create a stereo signal.
The right channel has some instruments, the left channel has some others,
but the voice is placed on both channels.  By inverting one channel and
summing it with the other channel, a box will subtract out all signals common
to both channels.  This can tend to remove some of the instrumental background,
but it is supposed to do a fairly good job at removing all of the voice.

I have never heard one of these boxes, but they are advertised quite often.

>zong liang Wu
>zong@imec.be
>VMDS-IMEC
>Kapeldreef 75
>3000 Leuven
>Belgium
>                                                       

  -dave

-- 
Dave McMahan                            mcmahan@netcom.com
					{apple,amdahl,claris}!netcom!mcmahan