My ThoughtsI think Melodyne produces the most 'realistic'/natural results out of these four plugins, but it sounds somewhat muffled. I'll add my own thoughts, as well as some clarification, below. ResultsPlease hear for yourself how each plugin did with this. However, I'll acknowledge that this isn't a typical use case for these, so it's possible that this is a bit unfair towards plugins that are optimized for subtle changes. This is a major enough change that we can easily hear artifacts and compare the results, so it makes it very interesting to compare them. I picked a vocal sample which was already in tune, from an Alicia Keys song, and pitched it 5 semitones up. So in order to test them in a way that would expose some weaknesses, I put them through a stress test. MethodologyTuning out of pitch vocals is the most common use case for these plugins, but largely, they sound very similar when making minor adjustments. I posted this first on KVR and Reddit, but wanted to share here as well. So I tested several of them out, and I want to share the results for anyone else who's interested here. Hello all! I was wondering how similar current pitch correction plugins are to each other, and which ones have the highest quality.