Crypton updated the official webpage for the upcoming Kagamine Rin/Len V4X today, adding more information to the original teaser site. Rin/Len V4X, slated for a late December 2015 release, will be available at a 17280 JPY price point (including tax), whereas a bundle version that also includes the English voice banks comes in at 21600 JPY; the English Rin/Len V4X comes in at 12960 JPY standalone and doesn’t include Piapro Studio. Download versions of Rin/Len V4X, the English voice banks and the bundle will be released on SONICWIRE. Discount pricing (25% off) will be available through June 30, 2016 for currently registered users of Kagamine Rin/Len V2, at 12960 JPY for the standard package and 16200 JPY for the bundle package that includes English. Preorders for the packaged versions also start today, and people interested in the download version can sign up to be notified by email when the download will be ready.
For the V4X update, Rin will come in three different Japanese voice banks: Power, Warm and Sweet, whereas Len will come in Power, Cold and Serious flavors. Both of the Power voice banks are also E.V.E.C.-enabled, meaning that they have some Crypton-specific extensions that were first introduced with Luka V4X. With E.V.E.C., each note in Piapro Studio can be optionally assigned an additional Voice Color (either Power or Soft), which changes the vowel sounds in the note. For each note, a Voice Release option can also be added (either Breath-Long or Breath-Short) to create a sound of exhaling at the end. The Rin/Len E.V.E.C. extensions include a new “strong pronunciation” modifier (not present in Luka V4X) that allows the user to make it sound like the singer is shouting. It is not clear if the consonant-extension feature from previous V4X releases is still present.
The English voice banks are said to be more mellow than the Power bank, although Crypton hopes to be able to take a stab at a Power English voice bank some day.
The site was also updated with a silhouette of the new character design as well as a demo song by JesusP from WONDERFUL☆OPPORTUNITY: Tokyo Zombie Land (Short Ver.); it uses a beta version of Rin and Len’s Power voice banks and uses the growl feature found in VOCALOID4 as well. The demo song does not have any velocity adjustments nor any brightness or dynamics adjustments to the consonants, according to an official tweet, aiming to show how that straight, untuned input will still sound good due to adjustments made to the database. The video description also includes a download link for the raw Rin/Len vocal data.