How to Improve Vocals on Audacity. Audacity, a free, open source, cross-platform application for audio recording, doesn't just cater to vocalists, voice-over artists and musicians. You can use ...

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.