Save yourself the headache. Keep Audacity for editing and noise reduction. Download a free VST like Graillon or MAutoPitch for actual auto-tune. Your listeners' ears will thank you.
Audacity deserves credit for including pitch correction in open-source software. It works mathematically. But in the world of audio production, "mathematically correct" is rarely "musically correct." The artifacts, the lack of real-time feedback, and the destructive editing workflow make it a frustrating tool for anything beyond a one-off fix. auto tune audacity
If you set the "Retune Speed" to a very slow setting (e.g., 0.2 seconds) and the "Threshold" low, you can smooth out a shaky vibrato without turning the vocalist into a robot. I recorded a demo of "Hallelujah" where the chorus was drifting sharp. A light pass of the default correction made it listenable—not perfect, but listenable. Save yourself the headache
When you force Audacity to correct a note that is more than a quarter-tone off, you get "warbling." It sounds like the vocalist is singing underwater while gargling gravel. The algorithm does not have the advanced phase vocoding of Melodyne or the neural processing of Synchro Arts. It simply shifts the audio, leaving behind a metallic, phasey residue. Your listeners' ears will thank you
After spending three years using Audacity for vocal production (mostly as a hobbyist and occasionally for demo recordings), I have developed a love-hate relationship with its pitch correction capabilities. Here is the long, unflinching review. Audacity comes with two native tools for pitch manipulation: Effect > Pitch and Tempo > Pitch Correction (which uses the MASTER algorithm) and the more surgical Effect > Pitch and Tempo > Sliding Stretch . There is no real-time monitoring, no graphical "blobs" on a piano roll, and definitely no "Chesney" or "T-Pain" presets.