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Tohoku Zunko VOCALOID3 VOICEROID+ VOCALOID4 | CeVIO AI VoiSona others | Songs Albums Notable Originals

This article is about the VOCALOID4 software known as a voicebank. If you are looking for the VOCALOID character then click here.


On September 29, 2016, AH-Software tweeted that a VOICEROID+EX voicebank for Tohoku Kiritan and a VOCALOID4 update for Tohoku Zunko would be releasing on October 27 that year. The VOCALOID4 update for Zunko would only be a Natural voicebank, much like the SF-A2 miki V4 and the Kaai Yuki V4 packages before her. In addition, her voicebank would be available on its own or as a bundle with the VOCALOID4 Editor software.[1]

A trial version of Zunko's VOCALOID4 voicebank was made available on October 14.[2]

Product Information[]



Evergreen NicoNico SoundCloud
Airy voice NicoNico YouTube

System Requirements[]

  • OS:
    • Windows: Windows 10, Windows 8.1, Windows 8, Windows 7 (32/64bit)
    • Mac: Mac OS X 10.9, 10.8 (32/64bit)
  • CPU: Intel Dual Core CPU
  • RAM: 2GB or more
  • Hard Disc Capacity:
    • Natural:
      • More than 1.5GB (using VOCALOID4 Editor)
      • More than 9.4GB (using VOCALOID4 Editor for Cubase + Cubase)
    • Starter Pack:
      • More than 2.5GB (using VOCALOID4 Editor)
  • Internet connection for online activation.


Product Information
  Optimum Range: F2 ~ G#4  Optimum Tempo: 70 ~ 140 BPM
  Total Tempo (min-max): 70 BPM  No. of Keys: W ~ 16, B ~ 12, Total ~ 28
  Trial/Demo Vers?: Yes  Starter Available?: No
Package details as noted:

An updated version of the VOCALOID3 Tohoku Zunko vocal.

Vocal traits as noted:
  • GWL capable
  • Her bass range's quality is low while her high range is strong.
  • Her consonants are loose, giving her a breathy vocal.
  • Zunko works well with the engine, making her sound "like a VOCALOID".[3]
  • She is easier to use than expected.[3]
  • Almost all other traits of her vocal are "Average", with only a few standing out as unique to her vociebank.[3]
Phonetic notes as noted:
  • She has issues with sounding as though she is rolling her tongue which can be corrected with VEL.[3]
  • She may sound like she is re-singing sounds, this happens if you take sounds like "たー" ("ta") and add another vowel to make "た あー" ("Ta-a"). Even if the user divides the two sounds, this may not fix the problem and can be seen as annoying to work with. [3] The issue is with the "-" symbol. In Zunko's case, for some reason, it does not always register as a smooth transition from one sound to the next, instead separating the two sounds when it should sound like it is one.
  • Her "ラ" ("la") can be strong.
Software issues as noted:
  • Aside from GWL, there is no difference between the VOCALOID3 and VOCALOID4 versions and users may not rush to update her to the Vocaloid4 version for this reason.
Voicebank sample

Tohoku Zunko V4

Cross-Synthesis as noted:

This vocal will register for XSY, however this is a single release voicebank and there are no additional vocals included for her to utilize this function. Therefore users will have to purchase addition voicebanks not belonging to Zunko at all for use of XSY.

  • From Ver.4.3.0 of the VOCALOID engine onwards, a XSY group "AHS" was added to VOCALOID. All vocals within the "AHS" group can XSY with each other. This vocal release is part of this group. If a user owns one or more vocal releases within the "AHS" group, XSY between them will open up.[4][5]
    • The group has 8 characters within it that can XSY: Yuzuki Yukari, Macne Nana, Macne Petit, Tohoku Zunko, Hiyama Kiyoteru, Nekomura Iroha, SF-A2 miki and Kizuna Akari.
    • The "AHS" group is currently the second largest XSY group within VOCALOID, having a total of 14 voicebanks that can XSY with each other. If old versions that have since been re-released are removed, there are currently 12 unique voicebanks. These are: "Yuzuki Yukari Jun", "Yuzuki Yukari Onn", "Yuzuki Yukari Lin", "SF-A2 miki", "Tohoku Zunko", "Macne Nana", "Macne Petit", "Kizuna Akari", "Hiyama Kiyoteru Natural", "Hiyama Kiyoteru Rock", "Nekomura Iroha Natural" and "Nekomura Iroha Soft".
    • In total if a user was to own every VOCALOID3 and VOCALOID4 AH-Software vocal within the "AHS" group, this offers the equivalent of 182 additional voicebanks achievable via XSY. The total tone variation offered by the combined packages comes to a theoretical 196 voicebanks in total.
  • Note that also "GWL" does not become viable for use with any V3 vocals used as the primarily vocal. This should be considered when using any vocal for XSY within the "AHS" group from V3.
  • Also note that the updated vocals that brought a VOCALOID from VOCALOID3 into VOCALOID4 provided few differences, aside from adding GWL. Therefore these updates can provide little difference when used for XSY.
  • There is little point in XSY between Tohoku Zunko VOCALOID3 and VOCALOID4, as they have no differences between them and users are better with alternative partners for XSY within this group.