Several devices can do this, but I would suggest the audio program 'audacity' to start with. Ymmv as it's always a trade off between not removing enough voice,

Several devices can do this, but I would suggest the audio program 'audacity' to start with. Ymmv as it's always a trade off between not removing enough voice, and having too much of the background erased at the same time. Other programs often call it 'karaoke mode'.