No. 18 of 56 ·AI Song Cover Generators

UtaiSynthesizer

Windows

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Freedom report

One barScore 5.4

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

UtaiSynthesizer is ranked #18 of 56 in AI song cover generators on Freedom251. It runs on Windows.

Compared on AI song cover generators

Voice cloning: Yes
Vocal input: Yes
MIDI support: Yes
Supported languages: 7 languages
Export formats: WAV, FLAC, MP3, OGG, OPUS, M4A, USTX, UST, MIDI
Commercial use: restricted

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The record

Purpose: UtaiSynthesizer is a singing-voice synthesis DAW that turns written scores into vocals using voice-conversion models.
SVC backends: It supports RVC and SoVITS backends, with shallow diffusion and multi-speaker voice blending.
Score-to-singing: Its Score2ConVec model converts notation into features that let an SVC voice model sing without an intermediate human vocal recording.
Recording and training: The maker says a dozen minutes of dry vocals and about an hour or two of training can create a voice model.
DAW features: Features include a piano roll, multi-track timeline, per-clip node workflow, vocal separation, training monitor, and vocal-range extension.
Languages: The app supports dictionary-backed lyrics in seven languages: Chinese, English, Japanese, German, French, Spanish, and Italian.
Import and export: It exports audio, UST, USTX, and MIDI, and imports USTX, UST, MIDI, audio, and voice-model packages.
Local processing: The maker describes voice-model training as on-device and says inference runs without requiring Python.
Downloads: The official site links to a Windows download, and the repository specifies Windows 10 or 11 x64.
Integrity: The repository says downloads are SHA-256 verified and auto-updates are minisign signed.
Models: The repository and official installer do not include singer voice models; users import or train their own.
License: The repository is licensed under AGPL-3.0.
Support: The maker directs bug reports and feature requests to GitHub Issues and lists QQ and Discord community groups.
Singing workflow: Its Score2ConVec model maps a score into ContentVec features so an SVC model can sing from notation without a human guide vocal.

Where it ranks on Freedom251

Best AI Song Cover Generators in 2026#18 of 56
Best AI Singing Voice Generators in 2026#11 of 25

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Sources

utaisynthesizer.net/en/· checked 4 Oct 2026
github.com/yasoukyoku/UtaiSynthesizer· checked 4 Oct 2026
github.com/yasoukyoku/UtaiSynthesizer/blob/main/SE· checked 5 Oct 2026