Board Thread:Questions and Answers/@comment-175.140.56.45-20170404044918/@comment-53539-20170405183626

To be fair not all Vocaloid even include the schwa sound... Vocaloid still registers the phonetic data, but the Vocaloid may or may not have it... This was the situation back in V2. You may not even realize they don't have it, as it appears the vocal is acting out as though its there, but the sound is voiceless... And one of the sounds that you can only record in a cluster for English, so in other words you may have to make the sound from scratch.

I find this amusing... Because it can be easily overlooked if you are like me and don't play with the vocal as I guess your suppose to? ^_^