Vocaloid is a singing synthesizer application software developed by the Yamaha Corporation that enables users to synthesize singing by just typing in lyrics and melody.
It has become a very popular subject for many fan artists, and thus, the characters have really evolved into what the users have chosen to make their personalities.
Popular characters include:
Miku Hatune (arguably, the most popular)
Kagamine twins, Rin and Len
Kaito
Meiko
To find out more about Vocaloid, please click here:
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