How do i make / play karaoke files on my computer?

the only recording software I can think of that is free is Audacity. Beta has a setup to install a VST Bridge then you can install other things into it such as "Antares Autotune" which does cost. BUT AUDACITY ITSELF IS A VOICE EDITING PROGRAM 100% FREE a href="http://audacity.sourceforge.net/" rel="nofollow"http://audacity.sourceforge.net//a