Fons Adriaensen designed this simple but effective autotune. If I want to describe X42 Autotune in one sentence then it is an autotune which corrects the notes without stressing the vocal. A perfect fit if you don’t want some robotic voice.
X42 Autotune has a modern-looking user interface where you find most of the pitch correction features except formant.
However, just like KeroVee and GSnap, it has the MIDI feeding feature which can be used to correct vocals via playing the same tune on your MIDI instrument and feeding the MIDI signals to this plugin.
The unique feature that I really like is BIAS and Offset knobs.
BIAS parameter: What it does is, stay on the current note of vocal fora longer time instead of moving it fast to the corrected scale. As a result, you get a more natural voice. However, there is a drawback to this feature. Some subtle part of the vocal remains un-corrected if the BIAS is high.
Offset Parameter: Offset knobs ensure that how far the vocalist can venture from the predesigned notes.
If you want an autotune plugin that keeps the naturality of vocal after processing then go for X42 Autotune.