Antares Auto-Tune EFX Vocal Effect & Pitch Correction Plug-In The Most Affordable Tool For Real-Time Pitch Correction And The Auto-Tune Vocal Effect Designed To Make Everything Automatic As Real-Time Pitch Correction Features Graphical Pitch Editing And Pitch Shifting Includes Format Correction And Throat Modeling Authorization requires an iLok USB smart key (sold separately) and the ability to access ilok.com