noun
Vocaloid; singing voice synthesis software; virtual singer persona
Refers both to the Yamaha-developed singing voice synthesis technology and to the virtual characters (e.g., Hatsune Miku) that use it. Often used as a proper noun or trademark.
初音ミクは有名なVOCALOIDの一つです。
Hatsune Miku is one of the famous Vocaloids.
彼
He makes songs using Vocaloid.