Board Thread:General Discussion/@comment-53539-20180529221920/@comment-30158224-20180530092923

Whle i agree with you that Vocaloid falls flat on some cases the  songs you provided require a lot of growling which Vocaloid just can't do, even with the growl function, which was introduced in V4, it falls flat, like you said. But Vocaloid as a whole just fails at being realistic and by that i mean that vocals seem to always be recored higher than they were in the previous engine and they have come to a point were they sound unrealistic. The higher recordings make it fall flat on songs that sound good/better when sung in deeper (or just generally deep) tones.

They also fail at singing with raw feeling, because no matter how many voicebanks/appends a Vocaloid has it can never replacte statter or a realistic unstable voice. In short Vocaloid fails at being human for obvious reasons which limits it a lot and can make it sound dull and dry to people that listen to actual singers.

As for rap, rapping is not as easy as it seems, not because it's supposed to be fast (it doesn't always have to be fast), but because it requirs flow and there are a lot of types of flow, i think the most known/generic flow is the triplet flow and i think it's also very easy in comparison to other flows. But for a program that has difficulties sounding good when talking it would be imposible to make their rap actually sound nice to a rapper, someone that has heard a lot of rap, and someone that in general knows how rap works. Unless they try to give it a slow melodic rap flow, which i think is somethink more managable for Vocaloid but still hard to achive since it still requires flow.