Vocaloid Wiki

RUBY VOCALOID4 | 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.



RUBY started as an independent project in December 2013 with only Prince Syo working on her.  Half a year later, he was joined by Anders, who had previously worked for VocaTone.[1] Despite Anders helping Syo, a development team did not exist, since Syo exclusively worked on RUBY for the most part.[2][3]

At some point, Syo searched for companies that could support RUBY and PowerFX, Zero-G and Crypton expressed interest in the project. It became clear that Crypton would not allow much creative freedom at all.  Anders thought that Zero-G and PowerFX would be better candidates because he had worked with and trusted them.[4] The two chose PowerFX because they would allow more control over the design.[5] Anders later remarked that at no point was anyone promised any control over the final design and that it was his decision to choose PowerFX.[6]


On September 19, 2014, Syo publicly revealed that he and Anders were working on a VOCALOID and a voice sample of RUBY was posted.[7]  At the time, RUBY was affiliated only with VocaTone, but not PowerFX.[7][8] However, Bil Bryant, the CEO of PowerFX, revealed in October that RUBY would be delayed so that she could be updated to the VOCALOID4 engine.[9][10]

On October 30, Natasha Allegri posted concept images. It was revealed that she and another artist had been requested to submit concept art for consideration.[11] At the time, it was not confirmed if the concept art would be used in RUBY's final design or whether either of the artists were to be chosen as the final illustrator.


Early in 2015, some early production samples of RUBY were discovered.  Syo explained that these test audio clips were not the original uploads of these samples. The originals had been removed and someone else re-uploaded them. However, there was no objection to them existing so long as everyone acknowledged that they were of early versions of RUBY's vocal and that they did not reflect the current status of the project.[12][13]

It was announced that RUBY would be associated with PowerFX.[14]

Syo expressed a desire to create at least two voicebanks for RUBY to take advantage of VOCALOID4's cross synthesis capabilities, but was unsure due to the doubled workload.[15][16] The extra workload was owed to the increase in triphonetic data. In addition, PowerFX was only willing to pay for one English voicebank.  They wanted to see how well the voicebank sold before adding any additional voicebanks.[17] It was also confirmed that RUBY originally had a Japanese voicebank, but this was scrapped.[18] Her English recordings were redone to sound similar to her Japanese voicebank.[19]

On June 10, Syo asked for original songs that he could use for RUBY demos within a week.[20] Examples had to be sent in and he would decide if the song would be accepted as a demo.[21]

After resolving miscommunication issues with PowerFX, it was confirmed that Natasha Allegri would illustrate the design for the physical copy of RUBY based on the concept Misha, the voice provider, worked on. It took 3 days to produce the art instead of the expected 1–2 weeks.[22] Natasha commented that doing the art made her very happy.[23]

On September 18, Syo tweeted that RUBY would be released within the month.[24] Later that day, he tweeted that the release date of the download version would be the September 23. Boxed versions would be available afterwards.[25] On September 23, it was noted that she was to be delayed.[26] She was officially released as a digital download on October 7.

Her physical version and bundle package were made available on December 12.[27][28]

Product Information[]

Early Production Samples[]


Witness CLYP
Angelfish CLYP
Applause CLYP
Masked bitcH CLYP
Happy Birthday 1 CLYP
Adventure Time CLYP
Ai Kotoba CLYP
Happy Birthday 2 CLYP
Delusion Tax CLYP
Heart Beats CLYP
Sad Machine CLYP
Cyber Thunder Cider CLYP
Shake It Comparison CLYP
Delusion Tax 2 CLYP
Diamond in the Rough CLYP
Shotgun Lovers CLYP
Shake It (English) CLYP
Shake It (Japanese) CLYP
Fallen Angel CLYP
Royals CLYP
Not Fair CLYP
Five Nights at Freddy's Song CLYP
Harder, Better, Faster, Stronger CLYP
Just Be Friends CLYP
Jenny (Acapella) CLYP
Jenny CLYP
Kurayami Shinjuu Soushisouai CLYP
'ruby & maiakaka' CLYP
Power Test Problem CLYP
Power Test Masked bitcH CLYP
Yoshiwara Lament CLYP
Yowamushi Montblanc CLYP
Twinkle, twinkle little star CLYP
Venus CLYP
The Sweet Escape CLYP



Problem NicoNico YouTube bilibili CLYP
Break Free CLYP
ヒビカセ (Hibikase) - English version CLYP
Hands YouTube
Why Don't You Do Right CLYP
Cutoff Line CLYP
Potato Chalala CLYP
RUBY Demo medley PowerFX Website

System Requirements[]

  • VOCALOID4 Editor
  • OS: Windows 10 (32/64bit) / Windows8.1 / Windows8 / Windows 7(32/64bit)
  • CPU: Intel Dual Core CPU
  • RAM: 2GB or more
  • Hard Disk Capacity: 3.54 GB


Product Information
  Trial/Demo Vers?: No  Starter Available?: Yes
Package details as noted:

RUBY is a young, female voice with a strong tone and general American Accent. PowerFX described her as "a youthful female vocalist with a smooth, joyful sound with the power and soul to ”kick it out” when needed."

According to Misha RUBY has the same voice as her UTAU Hachi had for recording. The resulting nasally tone was put down by Misha as either a result of the English sounds turning out more nasally, or because of the Vocaloid engine. RUBY's voice was confirmed by Misha as being achieved via voice acting.[29]

In October 2015, Prince Syo, created a custom dictionaries with four languages, (English, Japanese, Mandarin Chinese): Official Dropbox.com download and Announcement tweet.

Vocal traits as noted:
  • RUBY has three pitches of articulations thanks to the number of phonemes involved. Most other English Vocals have only two.[30][31] [32]
  • EmpathP spoke about RUBY's clarity: she felt she was more understandable than CYBER DIVA.[33]
  • As noted by heart★breaker, users need to be careful when mixing her voice as she requires the same level of attention as a real singer.[34]
  • RUBY tends to not handle higher notes as well as lower ones due to the particular accent and power of her range.
  • In response to a comment on RUBY's vocal being very weighted, a feature lacked by most other English vocals, Guiseppe called her voice "very peculiar".[35]
Phonetic notes as noted:
  • Her dictionary is programmed to be able to speak 5,900 words, including the 3000 most common words in the English language and around one hundred random words or suggestions from users.[36][37][38]
  • She wasn't developed with the same script CYBER DIVA or previous English vocaloids used. As a result, she has improved phonemes and produces different results to CYBER DIVA.[39]
  • The total number of triphones she has per pitch is 500+ – this is more than double the number that CYBER DIVA had.[40][41]
  • She has a custom library like SeeU and MAIKA, including extra phonemes. [42]However, all of them are allophones,[43] meaning that they allow a more natural sounding American English. The V4 editor won't use these extra phonemes by default.[44]
  • She has the capability to imitate Spanish, Chinese, and Japanese at the cost of having an accent due to the lack of certain phonemes such as the Japanese "ts" or the Chinese "r". [47][48][49][50]
  • She has some extra Misc Phonetics:
    • To change to an alternate sound, you can add "[2]" to input data section of the lyrics.[51][52]
    • She has the rolling [R] sound which became common in English voicebanks during the VOCALOID2 era. This phoneme had largely been absent from many of the VOCALOID3 era English voicebanks.
  • Syo commented that RUBY has the most consonants, as far as he knows, of any Vocaloid.[53]
  • RUBY's phonetics should be correctly aspirated.[54]
Software issues as noted:
  • RUBY's final package size is quite large due to its amount of content[55], even for a single voicebank[56].
  • RUBY has a metallic rasp in her voice (most noticeably on her consonants), requiring proper tuning for control these sounds. While this is a common trait among Vocaloid voicebanks due to being based on synethised results, RUBY has a slightly more noticable amount than normal.
Voicebank sample



  1. @Prince_Syo: I worked on her myself for about half a year and then Anders joined in on dev-ing
  2. @Prince_Syo: and I don’t personally consider myself part of vocatone
  3. @Prince_Syo: i dont understand what y’all are talking about because there is no “ruby production team?” it is literally just me ok
  4. http://www.vocaloidotaku.net/index.php?/topic/55772-ruby-new-female-english-vocaloid/page__view__findpost__p__1274569
  5. http://www.vocaloidotaku.net/index.php?/topic/55772-ruby-new-female-english-vocaloid/page__st__855__p__1274133&#entry1274133
  6. http://www.vocaloidotaku.net/index.php?/topic/55772-ruby-new-female-english-vocaloid/page__st__1080__p__1274597&#entry1274597
  7. 7.0 7.1 @Prince_Syo: Here’s a sample of the Engloid I’ve been developing with Anders since December. clyp.it/hcpped4f Keep in mind it’s not necessarily PFX
  8. @Prince_Syo: Technically RUBY is just Vocatone right now, no other company is involved with her at this moment
  9. http://i.imgur.com/hCmTbmM.png
  10. https://twitter.com/Prince_Syo/status/563136910344744960
  11. http://www.vocaloidotaku.net/index.php?/topic/36197-vocaloid-general-discussion/page__pid__1201457__st__9405&#entry1201457
  12. http://www.vocaloidotaku.net/index.php?/topic/55772-ruby-new-female-english-vocaloid/page__st__390__p__1239667&#entry1239667
  13. http://www.vocaloidotaku.net/index.php?/topic/55772-ruby-new-female-english-vocaloid/page__st__330
  14. https://twitter.com/Prince_Syo/status/563138512505933824
  15. https://twitter.com/Prince_Syo/status/557316301673472000
  16. https://twitter.com/Prince_Syo/status/557316453876396032
  17. http://www.vocaloidotaku.net/index.php?/topic/55772-ruby-new-female-english-vocaloid/page__view__findpost__p__1238836
  18. http://www.vocaloidotaku.net/index.php?/topic/55772-ruby-new-female-english-vocaloid/page__pid__1238693__st__360&#entry1238693
  19. http://www.vocaloidotaku.net/index.php?/topic/55772-ruby-new-female-english-vocaloid/page__view__findpost__p__1238700
  20. https://twitter.com/Prince_Syo/status/608742938382733312
  21. https://twitter.com/Prince_Syo/status/608743064119615488
  22. https://twitter.com/Prince_Syo/status/621812646291963904
  23. https://twitter.com/natazilla/status/621815605755117568
  24. https://twitter.com/Prince_Syo/status/644854039184740352
  25. https://twitter.com/Prince_Syo/status/644912503344918529
  26. Ruby delayed
  27. http://powerfx.com/products/989262091
  28. http://powerfx.com/products/989262092
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  56. [1]