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).
Zoome
zoome's popularity boomed via Hatsune Miku at the end of 2007. Nico Nico Douga, the fostering site of the voice synthesis software, became involved in a scandal which caused some of its members to move to zoome. Dwango, the owner of Nico Nico Douga, had registered the copyright of a Hatsune Miku song to the copyright management group JASRAC under the name "Dwango", without permission from the song's author, sparking outrage among Vocaloid fans. Sometime before the scandal broke out, ACCA had opened a Vocaloid video hosting circle , which was officially recognized by Hatsune Miku's developer, Crypton Future Media. The scandal on Nico Nico Douga and the official recognition in zoome lured many members away from Nico Nico Douga to zoome. As a result, Hatsune Miku videos became one of the mainstays of zoome, and zoome became a leading competitor able to challenge Nico Nico Douga's monopoly of the video hosting service industry in Japan.