how can i make karaoke from mp3 song. ie,removing the voice of a singer . i want only music of that song.

is there any freeware software available for this?
can anybody advise me on this

There are several programs that can do this (ex: CP2 / Adobe Audition) but be warned that removing integrated parts of a song will most certainly mutilate it.

I remember having success with some of the built in Winamp dsps.

As far as mutilation... it'll be fine. lisa's voice will overcome all obstacles! A+ score! 780 points!!

can u please tell me how to do this in cool edit ie, what are the settings have to be made for getting good result.

thanks in advance
lisa

AFAIK, vocal removers usually return monophonic results. If you want stereo results, you might want to check out foo_centercut or dsp_centercut.

It's a DSP plugin for foobar2000 or Winamp. You can search the forums for more info.

I never used this feature with my Sounblaster card, but it is there.
It actually looks and works quite cool, you can set the treshold of voice suppression so that results are adjustable, as the optimum threshold varies by each song. I think the cheapest sounblaster cards that come with this software cost you $30-50 for PCI and USB version respectively, not bad.

Trying to cut the vocals from an MP3 is going to produce pretty bad results, what you end up with is usually a bubbly sounding mess (based on my experience with a 128kbit joint stereo file). If you can start off with a wave file ripped from a CD, your results will be better.

Adobe Audition has a filter called Center Channel Extraction that can do a fairly good job removing vocals providing the vocal is a mono signal and has not had any reverb or stereo effects applied to it. It will leave the audio as a stereo signal.