Talk:Hatsune Miku V4 Chinese/@comment-120.18.226.107-20181008055357/@comment-53539-20181008092157

The consensus is generally that her best is in Japanese. I will note its pretty common for non-native vocals to sound worst then natives, not much can be done to improve things a native provider is more precise and confident able to correctly stress sounds where needed and has more control. The problem when you jump languages is there is less control and your stuck with the conflict of "control versus sound". Miku being voice acted has issues as whats easy to express in Japanese isn't ness. in other languages. Its harder to voice act and be precise in sound when you jump languages.

Otori Kohaku has a similar problem that related despite it not being language based. Her provider had only spoken the lines for the voice. When they made the Vocaloid, they had the problem of expressing a voice in singing that had only been used for talking.

It sounds odd but in both cases, the root of the problem is to do with muscle usage and control. In every situation you, if only slightly, change the way you control sound in your throat sometimes a vocal may have to be rebuilt from the ground upwards. You wouldn't believe things that can apply to voicebanks most don't even consider! This is something a lot of UTAU makers also don't realise, acknowledge or even consider.