Auto-tune lets singers achieve perfection by enhancing the feel of a track and removing any minor pitch imperfections. Many singers use auto-tune as a normal part of the production process. Some also use it as an added effect to make their voice sound robotic, creating an edge in their music. All you need is to download one of the free plugins above and install it in your favorite DAW software. The process is pretty simple: record vocals and use the VST plugin to add the auto-tune effect to your track.