Talk:VOCALOID4/@comment-53539-20150413081414/@comment-53539-20150424183859

@Evil; not true, there is variation, even if its slight. Whistling is the next voice register above falsetto, so there tends to not appear much variation due to the frequency, plus it doesn't involve words. Either way, due to all the possible variables of the human vocal cord, *some* variation happens. Some whistles are deep, others high pitch, some are flat, smooth, etc.

The registers of the human voice (for those who don't know); speech, singing, falsetto, whistling

Not everyone can whistle either... (like, for instance, me)... :-(