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This article is about the VOCALOID3 software known as a voicebank, dubbed "v flower". If you are looking for the VOCALOID character then click here.


v flower[1] (ブイフラワ) is a VOCALOID3 library that made its debut in HoneyWorks's song "Inokori Sensei," which was uploaded on April 17, 2014. Her voice was described by HoneyWorks as "a charming female vocal" with a powerful, androgynous-sounding voice.[1][2]

More information was made available during the third Niconico Chokaigi conference held on April 26–27, 2014.[1]

The download version of the voicebank was released on May 9 and for physical release in the summer of 2014. A physical release was later confirmed to be for the July 16, 2014.[3]

After v flower's release, the SoundCloud account containing the demos of her voice was emptied.

Product Information



ブラック★ロックシューター (Black★Rock Shooter) SoundCloud
EXCILE-Lovers Again SoundCloud
イノコリ先生 (Inokori Sensei) NicoNico YouTube
ロミオとシンデレラ (Romeo to Cinderella) SoundCloud
ロミオとシンデレラ (Romeo to Cinderella) - Without instrumental SoundCloud
紅蓮の弓矢 (Guren no Yumiya) SoundCloud
Don't say "lazy" YouTube
SUNRISE NicoNico YouTube

System Requirements

  • Supported OS: Windows 8(32/64bit)/Windows 7(32/64bit)/Vista(32bit)/XP(32bit)
    • On 64bit Windows 8, Window 7 systems the software runs in 32bit compatibility mode (WOW64).
  • Processor: Intel/AMD Dual Core CP or better
  • Memory: At least 1GB of RAM
  • Hard disk: At least 2.0GB of available disk space


Product Information
  Optimum Range: F#2 ~ F#4  Optimum Tempo: 80 ~ 200 BPM
  Total Tempo (min-max): 120 BPM  No. of Keys: W ~ 14, B ~ 11, Total ~ 25
  Trial/Demo Vers?: Yes  Starter Available?: No
Package details as noted:

The VOCALOID is a female vocal with a powerful, androgynous voice designed to specialize in rock music. v flower has some distinctive traits within the vocal not found in many past VOCALOIDs. The vocal allows her to have the reserved female tone needed for slow rock songs yet have the heavy sound needed for faster and more upbeat rock.

Vocal traits as noted:
  • Can shout to sing.
  • Was created to have a powerful, sharp voice.
  • Favors the faster tempo ranges than slower.
  • She has a sad tone of voice in her bass, this is designed to give her the impression of a kuudere in nature.
  • Is not easily drowned out when mixing into the BGM like many other VOCALOIDs.
  • Her treble has a boyish sound to it.
  • This vocal was ranked among the 5 choices for rock genre music alongside IA ROCKS, Mayu, Galaco Neo and VY1v4. It was highlighted with the song "Melancholic Shoegazer" on VOCALOID NET.[4]
Phonetic notes as noted:
  • According to the notes on the later V4 flower vocal, this version has some known broken diphones.[5]
Software issues as noted:
  • The voicebank was subject to noise warps and metallic sound issues.
Voicebank sample

v flower VOCALOID3