Handwriting refers to MAD that uses pictures and scenes drawn by oneself to accompany music and lyrics in MAD videos.

Human power refers to human power VOCALOID, which is to manually cut and paste the vocal audio materials of existing characters or roles, and use tuning software to achieve the same singing effect as in VOCALOID. This art form is called human power VOCALOID.

VOCALOID can realize the function of making virtual singers sing by inputting lyrics, but the number of virtual singers is limited and not enough to meet the needs of the majority of netizens. Human VOCALOID was born in this context. Extended information

Unlike MAD, human VOCALOID often focuses on the reproduction and singing of lyrics. Some MAD works will also use human VOCALOID materials. Human VOCALOID is a technology that "uses voices that are not recorded for singing", adds lyrics and scales, performs tuning, cutting, repairing and editing, etc., and finally generates a song. In recent years, with the continuous development of human VOCALOID technology, more and more works can be sung more smoothly.

Human VOCALOID works often appear in two-dimensional video websites such as Bilibili, AcFun, and Niconico Animation. Reference materials

Baidu Encyclopedia-Human VOCALOID