If you are looking for that specific "Auto-Tune 3 sound" on a modern computer, these are the current industry standards that work on Windows 10/11 and macOS: Antares AutoTune 3DX DirectX Software V.3 (DX Windows)

: Some older audio software requires the DirectX End-User Runtimes (June 2010) to function properly on modern PCs. You can download this directly from the Official Microsoft Download Center .