
The trouble was matching all 50 Japanese phonetics from Gumi's normal vocal and her falsetto. Kokone's project began with the development a falsetto vocal for the Megpoid software.

Kokone ( 心響), whose name means "Heart Sound" in Japanese, is a Vocaloid 3 vocal released by Internet Co., Ltd.

JSTOR ( March 2016) ( Learn how and when to remove this template message).If notability cannot be shown, the article is likely to be merged, redirected, or deleted. Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond a mere trivial mention. The topic of this article may not meet Wikipedia's notability guidelines for products and services.
