Each avatar, or more simply put each voice bank, is given a sometimes arbitrarily defined but sometimes specifically designed character to accompany the voice. Vocaloids are typically recorded exclusively for one language, with extensions for multilingual uses. To be blunt, even specifically English designed voice banks, they are at times difficult to fully understand. This has to do with how many different stresses, melded sounds and exceptions to pronunciation. However, Vocaloids designed for vowel-consonant syllabic languages are much simpler and therefore much more precise.
With all unnecessary rhetoric out of the way, let's chat!
Are you interested in Vocaloid? If not, that is alright. If so, do you have a particularly favourite avatar? Do you have a favourite song?
For the interested, here are some of my favourite songs and covers
Spoiler