ENUNU

Spec sheet

Purpose

ENUNU is a UTAU plugin that lets users use NNSVS singing voice models in UTAU.Read 9 Oct 2026 · github.com

Intended users

The stated use case is for people who want to use NNSVS singing voice models within UTAU.Read 4 Oct 2026 · github.com

Support

The project repository provides a GitHub Issues section for reporting issues.Read 9 Oct 2026 · github.com

License

The repository identifies its license as MIT.Read 9 Oct 2026 · github.com

Compatibility limit

Lyrics with multiple hiragana characters in one note are unsupported except for gemination (っ).Read 4 Oct 2026 · github.com

Download links

The ENUNU account page links downloads for ENUNU 1.0.0, ENUNU Training Kit 2.0.1, and EnuPitch 0.2.0.Read 9 Oct 2026 · linktr.ee

Extensions

Extensions can edit UST lyrics, timing labels, and acoustic properties such as F0.Read 9 Oct 2026 · github.com

Input limitation

The README says lyrics with multiple hiragana characters are unsupported except for the special handling described for small っ.Read 9 Oct 2026 · github.com

Installation

The README says to install ENUNU by dragging its ZIP file into the UTAU window.Read 9 Oct 2026 · github.com

Model requirement

A model folder needs an enuconfig.yaml, and its question_path must point to the file used in training and include that file.Read 4 Oct 2026 · github.com

Model support

The README says ENUNU can use ordinary NNSVS models and recommends the ENUNU Training Kit for somewhat more stable results.Read 9 Oct 2026 · github.com

Pitch tools

The f0_feedbacker extension feeds synthesized pitch back into the UST, and f0_smoother smooths steep pitch changes.Read 4 Oct 2026 · github.com

Platform

The repository lists Windows 10 as its development environment.Read 9 Oct 2026 · github.com

Training kit

The linked Training Kit creates NNSVS or ENUNU models from UST, LAB, and WAV singing data and lists Windows 10 and 11 as its operating environments.Read 9 Oct 2026 · github.com

Voice colors

The voicecolor_applier extension maps expression suffixes such as あ強 to model flags such as Power.Read 4 Oct 2026 · github.com

Warranty

The MIT license states that the software is provided as is without warranty.Read 4 Oct 2026 · github.com

Workflow

Users select notes in a UST and run ENUNU from UTAU’s plugin list to generate a WAV file.Read 9 Oct 2026 · github.com

Where Specifiction places it

• AI Singing Voice Generators#22 of 257.0