If ARA Auto-Tune Pro is loaded on an audio event that has a different sampling rate than the Studio One project session (e.g. if the audio file has a sampling rate of 48kHz but the project’s sampling rate is 44.1kHz), Auto-Tune Pro will not play the audio region back at the correct pitch / sampling rate.


Solution:  You must either convert the sampling rate of the audio file to match the project’s sampling rate or change the project’s sampling rate to match the sampling rate of the audio files you’re processing with Auto-Tune Pro.