Sinsy
Sinsy is a free service that turns musical scores into synthesized singing vocals using DNN- and HMM-based methods.
What Sinsy is
Sinsy is a free service that turns musical scores into synthesized singing vocals using DNN- and HMM-based methods. On its web page, users upload a MusicXML score, choose a vocal, and adjust settings labeled ALP, VIB, and PIT. Japanese is shown as a language option. Sinsy does not accept vocal input; its synthesis models characteristics such as pitch and timbre from the score. It was developed by the Tokuda, Nankaku, and Hashimoto Laboratory, and is listed for web and Linux. The about page, available in Japanese, describes its research background and version history. That history lists version 5.1 on 2026/05/01, which fixed parameter-panel and smartphone/tablet behavior. It also records compressed MusicXML upload support in version 4.4 on 2023/12/25, and the addition of Japanese DNN vocal f01027j_dnn_beta5 in version 4.5 on 2024/12/25. The Free online synthesis plan is free. The synthesis page says that generating vocals implies agreement to its terms of use.
Good
- Generates singing from MusicXML scores.
- Offers vocal selection and ALP, VIB, and PIT settings.
- Models pitch and timbre.
- Free online synthesis plan.
Watch out
- Does not accept vocal input.
- Synthesis implies agreement to the site's terms.
- The about page is available in Japanese.
Who it suits
Sinsy suits people who want to generate singing vocals from MusicXML scores and adjust vocal settings. Its current synthesis page shows Japanese as a language option.
Verdict
Sinsy focuses on score-based singing synthesis, with vocal selection and several labeled controls. It is a free option for users working with MusicXML who are comfortable with its terms of use.
Plans and prices
From Sinsy's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free online synthesis | Free | Uploads a MusicXML score to generate singing vocals |
The facts
Each one read from Sinsy's own pages, with the date it was checked.
What it does
- About page language
- The opened about page is available in Japanese and describes Sinsy's research background and version history.checked 8 Oct 2026
- Compressed files
- The version history says compressed MusicXML upload support was added in version 4.4 on 2023/12/25.checked 8 Oct 2026
- Current version history
- The about page lists version 5.1 on 2026/05/01 and says it fixed parameter-panel and smartphone/tablet behavior.checked 8 Oct 2026
- Development
- The about page says Sinsy was developed by the Tokuda, Nankaku, and Hashimoto Laboratory.checked 8 Oct 2026
- Input format
- The web page accepts a score file in MusicXML format.checked 8 Oct 2026
- Languages
- The synthesis settings on the current web page show Japanese as a language option.checked 8 Oct 2026
- Purpose
- Sinsy generates singing vocals from musical scores using DNN- and HMM-based synthesis.checked 8 Oct 2026
- Recent vocal addition
- The version history says Japanese DNN vocal f01027j_dnn_beta5 was added in version 4.5 on 2024/12/25.checked 8 Oct 2026
- Site terms
- The synthesis page says that synthesizing vocals implies agreement to the site's terms of use.checked 8 Oct 2026
- Synthesis method
- The about page says the system uses DNN- and HMM-based singing voice synthesis to model characteristics such as pitch and timbre.checked 8 Oct 2026
- Vocal control
- The page provides settings labeled ALP, VIB, and PIT alongside vocal selection.checked 8 Oct 2026
The company
- Founded
- 2009checked 28 Sep 2026
- Headquarters
- Nagoya, Aichi, Japanchecked 28 Sep 2026
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