VOCALOID4 (commonly shortened to just "V4") was the successor to the VOCALOID3 engine by the YAMAHA Corporation.


VOCALOID4 was first mentioned by Bil Bryant of PowerFX Systems AB. during a discussion about Ruby, an unreleased English VOCALOID. The new engine's existence was made known in late October 2014.[1]

On November 20, YAMAHA made an official announcement regarding VOCALOID4. It was revealed that its release would be on December 17, 2014, with a voicebank upgrade for VY1 also planned.[2][3]

On November 24, Internet Co., Ltd., AH-Software Co. Ltd. and Crypton Future Media, Inc. spoke about the development direction they were taking for the new engine. For AH-Software, due to the impact Windows 10 had on maintaining the VOCALOID2 software, AH Software decided to relaunch every VOCALOID2 vocal they had produced as a VOCALOID4 vocal. Due to the fact that the provider of Kaai Yuki would likely be of middle or highschool age, re-sampling her voice for growl samples was a problem. It was decided to find a second voice provider for the purpose. Internet co noted that they would try to increase triphone numbers and were working to increase the overall performance of their vocals. Crypton introduced their E.V.E.C function, which would be the focus of their updates.[4] Internet co., Ltd also confirmed that they would release a new vocal for VOCALOID5, so their direction for VOCALOID4 was also focused more on updating old vocals rather than creating new ones.[5]

The engine works with VOCALOID NET.

On January 30, 2015, Kenmochi Hideki retired from Vocaloid development, making VOCALOID4 the last version of the VOCALOID engine he worked upon. He was replaced with Katsumi Ishikawa.

On February 20, a special tool was released which allowed VOCALOID2 vocals to be imported into VOCALOID4 without the need of VOCALOID3.[6]

In April 2015, a iOS version was released called Mobile VOCALOID Editor.

Impact on voicebank developmentEdit

RUBY was previously planned to be released around Christmas 2014, but was delayed since V4 was due for release "soon".

In light of the news about VOCALOID4, Wat also reacted regarding Megurine Luka.[7]

VOCALOID4 Interface

Interface of the VOCALOID4 editor


Updated versions can be downloaded on the official Download page.

  • Ver.4.0.1: was released on December 15, 2014 and Lily was added to the Cross-Synthesis Group, along with general improvements to stability.[8]
  • Ver.4.1.0: was released on March 3, 2015 and support for Luka V4X was added, as well as the ability to revert selected notes to default lyrics, enter multiple lyrics for a single note, and general improvements to stability.[9]
  • Ver.4.2.0: was released on August 5, 2015 with the option to activate unactive voicebanks from start up, Selection History and the Swap Buttons for Control Parameters, the listing a Job Plugin as a "Job" Menu Item, the combination of three or more parts of VOCALOID Tracks, along with general improvements to stability.[10]
  • Ver.4.2.1: was released on September 10, 2015, featuring only general improvements to stability.
  • Ver.4.3.0: was released on October 25, 2016, featuring an updated "XSY" group, removing of the feature (due to its closure), and general improvements to stability.


  • OS: Windows 10, Windows 8.1, Windows 8, Windows 7 SP1 (32/64bit)
  • CPU: Intel Dual Core CPU
  • RAM: 2GB or more
    • Recommended: 4GB or more
  • HDD: 500MB free space or more

Note these requirements only apply to the VOCALOID4 engine itself. Users need to check each VOCALOID package and its requirements before installation as some variation may occur between releases.

Also note that if you own VOCALOID4 Editor for Cubase, you do not also have to purchase the full VOCALOID4 software.


Upcoming confirmed Vocal libraries for the VOCALOID software. Names and Images presented are placeholders and may not reflect the final product when complete.

NOTICE : Due to suspected scams in recent years, we urge readers be considerate and careful when supporting unconfirmed projects, especially if they ask for financial endorsement.

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Starter packsEdit

Starter packs are VOCALOID3 or VOCALOID4 releases that are sold with the VOCALOID4 engine included. The idea is this cheapens the first vocal a producer buys for the engine. Not all normal releases for VOCALOID4 have been given starter packs. Below is a list of vocals that have been sold as "starter" vocals.

Creator PacksEdit

This is a special release, it contains the VOCALOID Editor for Cubase version, a VOCALOID vocal, the UR12 USB powered audio unit and Cubase AI.

Additional notesEdit

Examples of usageEdit

An example of solfège using VOCALOID4 technology. See also, a listing of vocal stats here

To contribute an example- see this blog entry to download the VSQx. See also, the VocaloidOtaku forum to participate with other members!

VY1v4 (Normal)
VYv4 Normal
Yuzuki Yukari V4 (Jun)
Yukari jun
Megurine Luka V4X (Japanese HARD)
Luka V4X JPN Hard
Gackpoid V4 (Native)
Gakupo V4 Native
miki V4 (Natural)
Nekomura Iroha V4 (Natural)
Iroha Natural Sample
v4 flower
V4 flower Sample
Ruby solfege
Kaai Yuki V4 (Natural)
Yuki V4 Natrual
Hiyama Kiyoteru V4 (Natural)
Kiyoteru Natural Solfege
Megpoid V4 (Native)
Megpoid V4 Native
Dex - Solfege
Daina - Solfege
Rana V4
Kagamine Rin V4X (Japanese POWER)
Rin v4 pow
Kagamine Len V4X (Japanese POWER)
Len v4 pow
Fukase (Normal)
Fukase J Normal
Otomachi Una (Sugar)
UNAV4 Sugar
Hatsune Miku V4X (Japanese Original)
Tohoku Zunko V4
Tohoku Zunko V4
Macne Nana V4 (Natural)
Nana Macne V4 Natural JPN
UNI Kor Original
Reserve for Tone Rion V4 Yumemi Nemu
Nemu Yumemi
Yuezheng Longya (Chun)
Reserve for AZUKI Reserve for MATCHA
LUMi Trial
Xin Hua V4
Xin Hua V4 sample
Luo Tianyi V4 (Meng)
Tianyiv4 meng solfege
Kizuna Akari
Reserve for Mirai Komachi Zhiyu Moke
Moke v4 sample
Mo Qingxian
Qingxian v4 sample

New featuresEdit

The new engine allows the importation of VOCALOID2 and VOCALOID3 vocals; initially VOCALOID2 vocals had to be imported into VOCALOID3 before they could be imported into VOCALOID4. Yamaha has since released a tool to by-pass this. The new engine includes other features, but not all of them are accessible to VOCALOID2 and VOCALOID3 vocals. The new version of the engine includes a "Growl" (GWL) feature which allows vocals built for VOCALOID4 to take on a growl-like property in their singing results.

Cross-synthesis (XSY) was also added, allowing the user to switch between two vocals of the same language and voice (vocals from the same VOCALOID) smoothly using a time-varying parameter. It originally would not work with vocals from different characters, even if they are held within the same package. For example, using this feature with anon & kanon was not possible.[11] This feature is accessible to VOCALOID3 and VOCALOID4 vocals, but not VOCALOID2. Later, the feature was expanded and "XSY groups" were introduced. Vocaloid within this group could have their vocals mixed together.

Another feature included is Pitch Rendering, which all imported vocals can use. This displays the effective pitch curve on the UI. Finally, real-time input has been included in this version; a feature which all vocals can use. Other features were also noted by DTM magazine in their follow up page. Among them, are the 'Convert Vibrato to Pitch Bend' and 'Convert Expression to Pitch Bend' options, which respectively converts the vibrato and legatos/portamento normally edited through the Note Expression Property window into equivalent curves of the PIT parameter. Another new option is the 'Master Tune', which sets the overall tuning of the VOCALOID Editor. The default value is 440Hz for the note A, and modifying this value will change the respective pitch and associated frequency for all the notes.[12]

For users who had bought VOCALOID3, VOCALOID for cubase or VY1v3, YAMAHA offered an upgrade for each software package at the price of 5400 JPY. Those who bought the editor after November 10th 2014 were also offered a free upgrade until June 2015.[13]


It has been confirmed that VOCALOID4 vocals have a larger number of triphonetic samples.[4]

As of CYBER DIVA, issues with English VOCALOIDs have been addressed and a new script has been created for recording use to develop them. The script gives more clarity to English vocals, however, some expressive tones are lost in the process. It also addresses pronunciation issues. In addition, it was confirmed that past English vocals suffered from mis-labeled sounds; the new script helps reduce the errors.

However, this new script for English was not shared as the "standard" script as soon as it was written, with Ruby's script being made from scratch by Syo, as the previous YOHIOloid script contained errors and lacked efficiency.[14]

V4 also saw a change in approach to Vocaloid recordings. In an interview for Unity-Chan for the later VOCALOID4 engine, "Baba" (吉田) reported that for his series with this engine a lot of the focus turned to bringing out the qualities of the vocalist. Until V3, the vocals were fixed on producing results that easily fit music as a result of various common practices by he and his fellow developers. The result was, there was not always as great of a difference between vocals as they were for the vocals he worked on for Vocaloid4. The process involved examine the character and what traits needed to be brought out, such as more vivid tones for a cheerful and bright character.[15]

Known issuesEdit

While it is possible to use VSQX files from VOCALOID3 in VOCALOID4, the files saved in VOCALOID4 cannot be used in VOCALOID3.[4]


Though there were differences in capabilities between V3 and V4, these were often notable not to be as significant as the differences between V2 and V3.

This wasn't just restricted to the engine either, but to the Vocaloid released for it. For example, Rana's V3 vocal was the same as the V4 vocal just with the addition of GWL capability added. As a result Rana V3 imported into V4 produced the same results as Rana V4 if the GWL feature wasn't used. Tone Rion V4 is yet another example of such a release and she is the same for her VOCALOID4 release as her original V3 release, though in addition to GWL XSY was added to allow her to XSY with Yumemi Nemu.


Media galleryEdit

References Edit