Vocaloid
Description (in English):
VOCALOID is a voice synthesis technology and software developed by Yamaha.
Just put in a melody and lyrics and your virtual singer will sing for you. Adjust the detailed settings to change the singing style however you like. There's also a wonderful variety of Voice Banks. Choose a voice and character you like to match the music you want to make.
(Source: http://net.vocaloid.com/en/)
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