ENUNU review
A focused Windows tool for generating WAV vocals from UTAU and NNSVS workflows.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
ENUNU is a Windows desktop UTAU plugin for creators who want to generate singing vocals with NNSVS models. Its workflow centers on opening a UST score, choosing an ENUNU or NNSVS model, editing lyrics or phonemes, and generating a WAV file. The tool is aimed at users already working with compatible UTAU projects, voicebanks, and locally installed singing models rather than creators seeking a standalone, broad-platform vocal editor.
Its strongest area is workflow depth within the UTAU and NNSVS ecosystem. ENUNU supports UST input, Japanese hiragana lyrics, direct phoneme entry, and WAV generation. Extensions add timing repair, consonant-velocity adjustment, pitch smoothing, style shifting, vibrato, and voice-color flags. That combination gives experienced UTAU users more control over timing, expression, and vocal shaping without moving away from a score-based workflow. Commercial use is allowed, while each character or voice model remains subject to its own terms.
ENUNU is open-source and MIT-licensed, with no paid tier to compare. Its main trade-offs are platform and ecosystem scope: the software is Windows-only, supports Japanese hiragana input, and depends on compatible singing models installed locally. Those requirements make it a focused choice for Windows users with UTAU or NNSVS materials, but a less suitable option for creators who need vocal input, broader lyric-language support, other platforms, or a more self-contained generator. Choose ENUNU for model-based UTAU production and detailed timing and pitch extensions; consider an alternative when flexibility beyond that workflow matters more.
ENUNU pros and cons
- Where it wins
- Supports UTAU plugins, NNSVS models, and UST score input
- Offers direct phoneme input and Japanese hiragana lyric editing
- Includes timing, pitch, style, and vibrato extensions
- Where it doesn't
- Windows-only desktop workflow
- Japanese hiragana input limits lyric-language flexibility
- Requires compatible, locally installed singing models
ENUNU fact sheet, pricing and score →
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