Prolific YouTube how-to video maker jimmycron steps through how to remove the vocal track from some MP3s using the free open source Audacity.

With a little know-how, you can change a song's pitch with the free, cross-platform audio editor Audacity. We've shown you how to find your vocal range before, but if you have favorite songs that ...

After you extract the vocals, use the WAV as background music for your presentation, or use additional software to customize the audio with voice-over narration or new vocals.