Audacity Plugins — Autotune |link|

The correction was smoother. It handled the singer's drift with less audible "stepping" (the staircase effect).

He finally stumbled upon a guide for installing VST plugins in Audacity. After a few clicks and a quick restart, he saw it in the "Effect" menu: , a free autotune plugin. audacity plugins autotune

If you are looking for instant, T-Pain style robotic vocal effects with a keyboard interface, Audacity is the wrong tool. If you are looking for subtle, graph-based pitch correction on a budget, Audacity is surprisingly powerful. The correction was smoother

(by Auburn Sounds)

(Points added for being free and accessible; points deducted for a destructive workflow that discourages experimentation.) graph-based pitch correction on a budget