Well, generally speaking it's definitely better.
However, as with any other tool, it comes down to what you really need.
I tried autotune before but never really used it for extended period of time.
I remember that it’s accessible, it has labeled controls and things like that, but it’s tool made specifficly for vocals, and if you don’t need full control over every single note, and you’re fine with automated tuning based on scales or autotune presets, or if you need things like t-pain effect which is common in modern genres, then I’d say autotune is just fine, and definitely easier.
However, melodyne is not made specifficly for vocals, then for any audio, monophonic, polyphonic, percussive etc.
It gives you definitely more control over pretty much everything, pitch, pitch deviations, vibrato, sibilants control, formant etc etc, gives you multiple algorithms for different materials, and it’s made for natural edits, meaning, edits without artifacts. However, none of this is automated and you control everything manually.
Melodyne does have automation macros for pitch, timing and note leveling, but these specific macros are not accessible to VoiceOver unfortunately.
Personally, I use melodyne for many years, since version 4 got out, I even created jaws script for melodyne years ago when I was on windows. I prefer it over other tools simply because it allows me to edit not just vocals, then everything I want, even things like guitar chords, percussion recordings, any melodic instrument etc etc. It requires some getting used to for sure, but it’s well worth it imho.
I have no idea what’s the current state of autotune, maybe it got updated and allows you to do more with it, but regardless, melodyne is always preferred for natural editing, or for editing other melodic, percussive, or polyphonic materials.
You can try it for free, I think 14 days trial is available, maybe even longer I don’t remember. Go through manual which is like 50 - 60 pages or something like that, just to see how it all works, or watch some videos, and finally try it out yourself.
Hope it helps.
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