During Yamaha’s new product announcement live stream, Crypton Future Media’s Sasaki Wataru revealed that the new Luka library will be called “Megurine Luka V4X“, where the X stands for eXpression, eXtended as well as venturing out into the unknown. As expected, the new Luka library will be using the VOCALOID4 engine, and hence will be growl-capable. The software will come with Hard and Soft voice banks in Japanese as well as Straight and Soft voice banks in English. For the Japanese voice banks, the user can also apply a “voice color”—Power, Whisper, Cute, Soft, Husky or Falsetto—using Crypton’s E.V.E.C. feature. The software will be released at the end of February 2015 for 17280 JPY (12960 JPY for registered owners of Luka (V2), Miku V3, Miku V3 Bundle, KAITO V3 or MEIKO V3). New information will be released every weekend starting with November 28. An official upload of the demo movie is now available on YouTube.