Techno-Speech, Inc. (headquarters: Higashi-ku, Nagoya; Representative Director: Keiichiro Oura, hereinafter "Techno-Speech") announces that a new voice library "Otobe Hisui (CV: Yun*chi)" (planning/management: GEMVOX) for the singing voice synthesis software "VoiSona", which realistically reproduces human singing voices with cutting-edge technology, has been released on Monday, December 15, 2025.

Otobe Hisui is a female singer based on the voice of singer "Yun*chi." It features two modes: Cool and Sweet.

<Audio Sample>

• Slowly Growing feat. Otobe Hisui | Amane, Koshikawa Sho
  URL: https://youtu.be/LWtM01cBrbw

[VoiSona New Voice Library "Otobe Hisui" Information]

• Voice Library Name: Otobe Hisui
• Language: Japanese
• CV: Yun*chi
• Illustrator: Yoshihiko Fujimori
• URL: https://voisona.com/song/artist/otobe-hisui_ja_JP/
• Release Date: Monday, December 15, 2025, at noon (JST)
• voisona.com Direct Sales Price
  • Outright Purchase Plan: 13,200 yen (excluding tax: 12,000 yen)
  • Annual Plan: 6,600 yen per year (excluding tax: 6,000 yen)
  • Monthly Plan: 880 yen per month (excluding tax: 800 yen)

*Sales on voisona.com accept credit card payment. For the outright purchase plan, convenience store payment and Alipay payment are also available.

<Otobe Hisui Profile>
A young girl with a voice as soft as a gentle embrace.
Her calm, wind-like singing—reminiscent of a breeze passing through the forest—kindles a quiet, jade-colored glow in the hearts of those who listen.

Hisui was born and raised near a deep forest.
Listening to sunlight filtering through leaves and the murmurs of running water, she came to understand that sound has the power to heal.
Some say her voice can revive withered flowers, or nurture tiny buds deep within one’s heart.
But she never pays such rumors any mind. She simply murmurs, “The forest is smiling kindly again today.”

With her sister far away by the sea, Hisui sings deep within the woods, thinking of her from afar.
Her melodies weave through the trees and eventually dissolve into the sky.

A being who holds quiet strength within her tranquility.
She loves “leaves glistening with morning dew” and “paths dappled with sunlight.”
Her dream is to fill the world with a gentle shade of jade through her songs.