Originally developed to be used as backup vocals, Vocaloid was actively used for main vocals soon after its initial release. Version upgrades have since been released VOCALOID2 (2007), VOCALOID3 (2011), VOCALOID4 (2014), and the latest version VOCALOID5 which was released in 2018. Since then, Vocaloid-compatible sound libraries have been released by vendors all over the world, including Japan. Vocaloid was first announced in February 2003 and in 2004, the first packaged product for personal computers using Vocaloid technology was released by the firm ZERO-G in the United Kingdom.

After three years of collaborative research with Yahama and the Universitat Pompei Fabra (UPF) Music Technology Group in Barcelona, Vocaloid signal processing was developed.

The Vocaloid project began in March 2000 under the name 'DAISY'. Since an actual human's voice is sampled per voicebank library, more natural-flowing singing elements can be synthesized, including pitch changes, vibrato settings, and other melodic embellishments. However, as the software only handles vocals, additional software is required in order to create musical arrangements that accompany the vocals.

With the Vocaloid software, it is incredibly cheap and easy to create expressive music without the need for hiring an actual vocalist. VOCALOID and its shorthand Japanese form, ボカロ are registered trademarks of Yahama Corporation. Sung lyrics can be created by inputting the melody and lyrics into the software, which then converts into a playable audio file that has been sung by a sampled human voice.Ĭompanies that have accepted a license agreement with Yamaha can produce their own singer libraries that contain sampled sounds and sell them as commercial products in combination with the Yahama software. VOCALOID (hereafter stylized as Vocaloid) is the term for voice synthesis technology that was developed by Yamaha.

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