Hatsune Miku
, sometimes referred to as Miku Hatsune, is the name of a Vocaloid software voicebank developed by Crypton Future Media and its official moe anthropomorph, a 16-year-old girl with long, turquoise twintails. She uses Yamaha Corporation's Vocaloid 2, Vocaloid 3, and Vocaloid 4 singing synthesizing technologies. She also uses Crypton Future Media's Piapro Studio, a singing synthesizer VSTi Plugin. She was the second Vocaloid sold using the Vocaloid 2 engine and the first Japanese Vocaloid to use the Japanese version of the Vocaloid 2 engine. Her voice is modeled from Japanese voice actress Saki Fujita. Miku's personification has been marketed as a virtual idol and has performed at concerts onstage as an animated projection (rear cast projection on a specially coated glass screen).
Vocaloid 2
VY1 was developed under the codename of "Mizki" as a professional Japanese female vocal with no mascot, designed to fulfill any role and head any Yamaha Vocaloid product. It was released on September 1, 2010 by Bplats and designed to act as a "Standard" vocal of noted quality for the Vocaloid software. It was released on September 1, 2010. It handled samples differently to previous Japanese vocaloids. It sold with a standard and a "deluxe" version, the deluxe version came with a CD called ""feat.VY1"". The CD featured various songs and producer made content and was designed to display the creative freedom that VY1 brought. This was due to it having no official set mascot, leaving her appearance, age and even gender be up to the producer.