Honki dasu to motto sugoi kara.
—Favorite phrase[1]

Utane Uta (唄音ウタ (うたねうた)) also known as Defoko (デフォ子 (でふぉこ)) is a preinstalled voicebank for the UTAU and UTAU-Synth program.


Uta, Teto and Momo were the first 3 UTAUloids to be publicly released. They are often collectively referred to as "The 3 UTAU Girls."


Uta is a Japanese robot with there appearance of a young female humanoid. Her birthday is allegedly February 5, which was the beginning of the UTAU project in 2008. She has a cool and friendly personality, but her alleged bullying towards Momo makes her unpredictable. She appears lonesome and melancholic. Her eyes are usually half opened.

Her character item is said to be a Rocket-Propelled Grenade. She likes rice and dislikes Daruma dolls (A kind of toy).


  • 唄音 - Utane; Singing Sound.
  • ウタ - Uta; Song.
  • デフォ子 - Defoko; Default Child/Default Girl. This is because of her presence in the standard-issued installer of UTAU, making her the default voicebank.


  • Hair color - Purple. Short length.
  • Headgear - Grey headset with ice blue highlights.
  • Eye color - Purple.
  • Earphones - Low-profile minimal headset.
  • Dress - Shirt with collar and tie, school-like skirt, boots with knee-high socks.


Product Information

Product Information
  Genre: Unannounced  Tempo: 80-150 BPM  Range: E3-G5
  Input: Kana encoded and kana aliased  Vowels: Unannounced  System: Microsoft Windows and Mac
Package details as noted:
  • This voicebank was recorded for the Japanese language.
  • There is a single voicebank that is called "AquesTalk Female-1," which is distributed free by, Ameya has been granted special permission by the company to feature their software in UTAU.
Software issues as noted:
  • Uta is packed with UTAU as a default voice bank. She does not come from an organic voice source; that is, her voice is 100% machine synthesized.
  • Because of this and adding the fact that she only has Japanese phonemes, Uta is not for beginners. Though some have tried to come up with quality output using her, this is no easy task, due to her excessive airiness, or lack of voice clarity. Users can attempt to overcome voice quality issues through tweaking of note flags in UTAU.
Voicebank sample

Defoko sample -


Additional information


Work in Progress


  • Her name rendered in Korean is 데포코.
  • The author Ameya/Ayame doesn't control a YouTube channel in her name. The user "OfficialDefoko" is just a fan and has nothing to do with the author.


Work in Progress



  1. "If I get real, I'll go even further."

External links