Talk:Kagamine Rin & Len/@comment-36843431-20181022013202/@comment-53539-20181022092806

The girl voice is simple; he is voiced by an adult female. Female voice actresses have a similar range to young boys (pre-voice break in puberty) and are often used for voice acting for this reason. Vocal typing wise, however, their a mismatch and this is what lets them down and where you get problems, adults usually have bigger voice ranges then children afterall.

Other issues are caused by CFM basically sound engineering the samples to make them act the way they want. It impacts all vocals, though Meiko and Kaito only have basic filters and that have no major impacts on the vocal. Miku, Rin, Len and Luka, however, can have their samples adjusted in major ways like adding some more masculine tones to Len. While this can happen in other Vocaloids, the only one known for certain to mimic this is Sonika, an English vocal whose voice was edited and mimics the trend of Vocaloid2 era Japanese vocals. Normally Zero-G only corrects octave range (the Vocaloid engine often has a habit of recalling the wrong octave or pitch and studios always have to at least edit samples to fix this), so Sonika was an exception. But CFM's Character Voice series is best known for it, though Luka 4Vx was allowed to be a lot more realistic then any other release before it, and extra vocals are always a mix of styles of recording and voice acting.

Rin on the other hand is a little closer to the voice actresses natural tone, though still voice acted. So most of the time Rin ends up being the better vocal naturally just for this reason. Len is also a chest voice (sung from the gut as it were) and Rin is a head voice (sung within the tip of the tongue), both are "Power type" vocals which are the one of the hardest vocals for Vocaloid to handle at times. I wouldn't particularly say Len was bad, in reality the Kagamines often have problems which I highlighted in my response to someone else last night. But generally, those are some of the issues related to how Len sounds. The Kagamines, along with Miku herself, are among the most well analysed vocals so not much isn't known generally about how they behave at times. So one can always get a good grasp of the situation if research is done. But some of this stuff isn't on the wiki, mostly because its not that useful. Some of it is on Controversy Concerns if it was felt relevant at all.