Vocaloid Wiki

Hibiki Koto VOCALOID6 | Songs Albums Notable Originals

This article is about the VOCALOID6 software known as a voicebank. If you are looking for the VOCALOID character then click here.



On March 7, 2024, a new character was introduced under the name of "Hibiki Koto" (花響 琴) on the official Internet Co., Ltd. Twitter account. A silhouette was shown with an unveil date announced for March 18. No additional information was provided at the time.[1] A promotional announcement website was released prior to the official reveal;[2] an official Twitter account for Hibiki Koto was also launched the same day.[3]

On March 13, the official "GUMI from Megpoid" Twitter account revealed a second teaser for Hibiki Koto, this time carrying an announcement that the character was a "new singer", with additional details regarding Koto's development and character design process, announced to be held at 20:00 on March 19 during an official "GUMI Radio" (GUMIラジオ) broadcast. It was not specified at the time which vocal synthesis engine the vocal would be developed for.[4]

The following days on March 15 and 16 respectively, president of Internet Co., Ltd. Noboru Murakami made various impromptu statements on his personal Twitter account in regards to Hibiki Koto's production, stating that the first official demo song featuring Koto was completed.[5] It was then noted that Koto began development around the same time as Internet Co., Ltd.'s other upcoming VOCALOID6 project, AI Megpoid SOLID, already entering the singing and testing phase of her development with Noboru working on fine tuning and adjustments.[6] When asked by a fan if Koto would also be releasing for the VOICEPEAK text-to-speech synthesizer, Noboru stated that he did not know yet and that "various things" would be considered.[7][8]

Hibiki Koto was formally revealed on March 18 as expected, with the formal announcement of her production as an AI voicebank for the VOCALOID6 engine, that would be released on Thursday, April 18.[9][10] Her full character design, which was announced to be illustrated by the official illustrator of AI Megpoid, Nou, was revealed, as well as her official character profile, voice actress, who was announced to be the Japanese singer Leon Tachibana[11], as well as purchase options and her first demonstrations. Hibiki Koto was introduced as a 17-year-old student, noted to have an authentic singer's voice with a powerful and firm singing voice. She enjoys music, musicals, and peaches, and attends a high school attached to a music college. She performs in various band activities, including providing vocals, and playing various instruments such as the piano and guitar. Her height was listed at 156cm and her favorite colors were listed as light blue and pink.[12] Pre-order reservations began the same day on the official Internet Co., Ltd. online shop and would be available for purchase as download and packaged versions, including options for a Starter Pack bundle with the VOCALOID6 editor.[13][14][15] Upon her reveal, she received two demonstrations.[16] and received a series of alternative illustrations for her main key visual image as well as reference and concept artwork, also illustrated by Nou.[17][18]

Product Information[]



VOCALOID6 AI 花響 琴(Hibiki Koto)公式デモ (VOCALOID6 AI Hibiki Koto Official Demo) NicoNico YouTube SoundCloud
MAVERIQUE NicoNico YouTube
ジャンキーダウン (Janky Down) NicoNico YouTube

System Requirements[]

  • OS: Windows 10 Version 21H2 (or later), Windows 11 Version 21H2 (or later), 10.15 (Catalina), macOS 11 (Big Sur), macOS 12 (Monterey)
  • CPU: Haswell (4th generation) or later Intel Core series or Xeon series
  • RAM: 8 GB minimum recommended
  • HDD: At least 25 GB
  • Other: Audio device, internet connection (for authentication, deauthentication, software updates, etc.)
  • Monitor size:
    • Minimum operating environment: 1366 × 768


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

Her voicebank's installer folder also includes her VOCALO CHANGER version. Hibiki Koto has 6 preset modes:

  • Default (HibikiKoto_Default)
  • Brilliant (HibikiKoto_Brilliant)
  • Doubler (HibikiKoto_Doubler)
  • Drive (HibikiKoto_Drive)
  • Thin (HibikiKoto_Thin)
  • Warm (HibikiKoto_Warm)
Phonetic notes as noted:

Using the "Multilingual" function, users can change the lyrics so Hibiki Koto can not only sing in Japanese but also English and Mandarin Chinese.

Voicebank sample