ENUNU
ENUNU is a Windows plugin for using NNSVS singing voice models within UTAU.
What ENUNU is
ENUNU is a Windows plugin for using NNSVS singing voice models within UTAU. Users select an ENUNU model or a folder containing an NNSVS model in UTAU, then run the plugin on selected notes to produce a WAV file. The README’s installation instructions say to drag the ENUNU ZIP file into the UTAU window. Extensions can edit UST lyrics, score or timing labels, and acoustic parameters such as f0. The voicecolor_applier extension maps expression suffixes such as あ強 to model flags such as Power. For pitch work, f0_feedbacker feeds synthesized pitch into the UST, while f0_smoother smooths steep pitch changes. A model folder needs enuconfig.yaml, and its question_path must point to and include the file used in training. Lyrics with multiple hiragana characters in one note are unsupported, except for gemination (っ). ENUNU can use ordinary NNSVS models; its Training Kit is recommended for somewhat more stable results. The software is free and open source under the MIT License, which allows commercial use subject to its conditions and provides it as is without warranty.
Good
- Generates WAV files from selected UTAU notes
- Extensions edit lyrics, timing, and acoustic parameters
- MIT License allows commercial use subject to its conditions
Watch out
- Multiple hiragana characters per note are unsupported except っ
- Model folders require a correctly configured enuconfig.yaml
Who it suits
ENUNU suits UTAU users who want to use NNSVS singing voice models. It is intended for Windows, with Windows 10 listed as the development environment.
Verdict
ENUNU connects NNSVS models with a UTAU workflow and includes extensions for pitch and other edits. Check the lyric and model-configuration requirements before using it.
The facts
Each one read from ENUNU's own pages, with the date it was checked.
What it does
- Compatibility limit
- Lyrics with multiple hiragana characters in one note are unsupported except for gemination (っ).checked 4 Oct 2026
- Download links
- The ENUNU account page links downloads for ENUNU 1.0.0, ENUNU Training Kit 2.0.1, and EnuPitch 0.2.0.checked 9 Oct 2026
- Extensions
- Extensions can edit UST lyrics, timing labels, and acoustic properties such as F0.checked 9 Oct 2026
- Input limitation
- The README says lyrics with multiple hiragana characters are unsupported except for the special handling described for small っ.checked 9 Oct 2026
- Installation
- The README says to install ENUNU by dragging its ZIP file into the UTAU window.checked 9 Oct 2026
- Intended users
- The stated use case is for people who want to use NNSVS singing voice models within UTAU.checked 4 Oct 2026
- License
- The repository identifies its license as MIT.checked 9 Oct 2026
- 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.checked 4 Oct 2026
- Model support
- The README says ENUNU can use ordinary NNSVS models and recommends the ENUNU Training Kit for somewhat more stable results.checked 9 Oct 2026
- Pitch tools
- The f0_feedbacker extension feeds synthesized pitch back into the UST, and f0_smoother smooths steep pitch changes.checked 4 Oct 2026
- Purpose
- ENUNU is a UTAU plugin that lets users use NNSVS singing voice models in UTAU.checked 9 Oct 2026
- Support
- The project repository provides a GitHub Issues section for reporting issues.checked 9 Oct 2026
- 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.checked 9 Oct 2026
- Voice colors
- The voicecolor_applier extension maps expression suffixes such as あ強 to model flags such as Power.checked 4 Oct 2026
- Warranty
- The MIT license states that the software is provided as is without warranty.checked 4 Oct 2026
- Workflow
- Users select notes in a UST and run ENUNU from UTAU’s plugin list to generate a WAV file.checked 9 Oct 2026
Where it runs
- Platform
- The repository lists Windows 10 as its development environment.checked 9 Oct 2026
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