Navigate your browser to the AnalogX Autotune Download site: analogx.com/contents/download/Audio/autotune/Freeware.htm.
Download and run the installation file.
Open the program.
Enter the dominant note you want into the top left dialogue box. For example, if you enter "C4," this sets middle C as the dominant note.
Open the folder where your sample is stored. Click and drag the sample file onto the AnalogX window and wait.