Nova-Vox

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Ranked in AI Singing Voice Generators ·Free plan

About

Nova-Vox is a free, open-source vocal synthesizer for Windows that combines traditional synthesis with AI-driven techniques. Its ESPER framework supports concatenative and granular synthesis and provides a basis for AI systems. Voicebanks can hold expressions, pitches, custom AI models, and settings together in one file. The engine chooses a pitch for each note, while expressions can be entered with a single letter. A universal phonetics system is described as supporting any language, and a node editor lets users create adaptive post-processing effects. The Nova-Vox 1.0 download includes a Development Kit and AI base models for making Voicebanks; the website offers a Windows setup executable. Commercial use is allowed. The maker identifies Johannes Klatt as maintainer and lead developer. It also notes that version 1.0 has performance, installation-size, and code issues. The planned successor, Mirai, has no release date yet; planned additions include cross-language synthesis, an improved editor, a WebUI Development Kit, audio tracks, and VST support.

Who it is for

Nova-Vox suits Windows users creating singing voices who want editable Voicebanks and a development kit. Commercial use is allowed, though the maker identifies issues with version 1.0.

What is good

  • Free plan includes the Development Kit and AI base models.
  • Voicebanks bundle expressions, pitches, models, and settings.
  • Node editor supports adaptive post-processing effects.
  • Commercial use is allowed.

What to know first

  • Version 1.0 has performance issues.
  • The maker reports a prohibitively large install size.
  • The maker reports code issues.
  • Mirai has no planned release date.

Verdict

Nova-Vox offers a free Windows vocal-synthesis tool with Voicebank creation resources and broad customization options. The maker's stated version 1.0 limitations are important to weigh before adopting it.

Compared on AI singing voice generators

Free plan
Yesnova-vox.org
Commercial use
allowednova-vox.org

Facts

Product
Nova-Vox is an open source vocal synthesizer combining traditional and AI-driven techniques.nova-vox.org · 4 Oct 2026
ESPER framework
ESPER is an audio description framework built for Nova-Vox that supports concatenative and granular synthesis and provides a basis for AI systems.nova-vox.org · 4 Oct 2026
Voicebanks
Voicebanks can bundle expressions, pitches, custom AI models, and settings in one file.nova-vox.org · 4 Oct 2026
Pitch selection
The engine automatically picks the best pitch for each note, and expressions can be specified with a single letter.nova-vox.org · 4 Oct 2026
Customization
A universal phonetics system is described as supporting any language, and a node editor lets users build adaptive post-processing effects.nova-vox.org · 4 Oct 2026
Development kit
The download includes the Nova-Vox Development Kit and AI base models for creating Voicebanks.nova-vox.org · 4 Oct 2026
Download
The home page offers a download for Nova-Vox 1.0, and its download link points to a Windows setup executable.nova-vox.org · 4 Oct 2026
Known limits
The maker says Nova-Vox 1.0 has performance issues, a prohibitively large install size, and code issues.nova-vox.org · 4 Oct 2026
Planned release
The maker says Nova-Vox 2.0, named Mirai, has no planned release date yet.nova-vox.org · 4 Oct 2026
Planned features
Planned Mirai features include cross-language synthesis, an improved editor, a WebUI Development Kit, audio tracks, and VST support.nova-vox.org · 4 Oct 2026
Maker
The site identifies Johannes Klatt as its maintainer and Nova-Vox's lead developer.nova-vox.org · 4 Oct 2026
Website data
The privacy policy says the site collects comment form data, IP addresses, and browser user-agent strings for spam detection, and says it does not share visitor data with third parties.nova-vox.org · 4 Oct 2026

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