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Sinsy

sinsy.sp.nitech.ac.jp

Free plan WebLinux
Visit sinsy.sp.nitech.ac.jp
Spec score 7.4 #19 of 25 in AI Singing Voice Generators

What it is

Sinsy is a free web service that generates singing vocals from musical scores. You upload a MusicXML score, choose a vocal, and adjust settings labeled ALP, VIB, and PIT; Japanese appears as a language option. The system uses DNN- and HMM-based synthesis to model characteristics such as pitch and timbre, rather than accepting vocal input. Sinsy was developed by the Tokuda, Nankaku, and Hashimoto Laboratory. Its version history lists version 5.1 on 2026/05/01, with fixes for parameter-panel and smartphone/tablet behavior. Earlier entries record 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 service is listed for web and Linux. Its Free online synthesis plan costs nothing. The synthesis page says using the service implies agreement to its terms of use. The about page is available in Japanese and describes the research background and version history.

Spec sheet

Purpose
Sinsy generates singing vocals from musical scores using DNN- and HMM-based synthesis.Read 8 Oct 2026 · sinsy.sp.nitech.ac.jp
Headquarters
Nagoya, Aichi, JapanRead 28 Sep 2026 · sinsy.sp.nitech.ac.jp
Founded
2009Read 28 Sep 2026 · sinsy.sp.nitech.ac.jp
About page language
The opened about page is available in Japanese and describes Sinsy's research background and version history.Read 8 Oct 2026 · sinsy.sp.nitech.ac.jp
Compressed files
The version history says compressed MusicXML upload support was added in version 4.4 on 2023/12/25.Read 8 Oct 2026 · sinsy.sp.nitech.ac.jp
Current version history
The about page lists version 5.1 on 2026/05/01 and says it fixed parameter-panel and smartphone/tablet behavior.Read 8 Oct 2026 · sinsy.sp.nitech.ac.jp
Development
The about page says Sinsy was developed by the Tokuda, Nankaku, and Hashimoto Laboratory.Read 8 Oct 2026 · sinsy.sp.nitech.ac.jp
Input format
The web page accepts a score file in MusicXML format.Read 8 Oct 2026 · sinsy.sp.nitech.ac.jp
Languages
The synthesis settings on the current web page show Japanese as a language option.Read 8 Oct 2026 · sinsy.sp.nitech.ac.jp
Recent vocal addition
The version history says Japanese DNN vocal f01027j_dnn_beta5 was added in version 4.5 on 2024/12/25.Read 8 Oct 2026 · sinsy.sp.nitech.ac.jp
Site terms
The synthesis page says that synthesizing vocals implies agreement to the site's terms of use.Read 8 Oct 2026 · sinsy.sp.nitech.ac.jp
Synthesis method
The about page says the system uses DNN- and HMM-based singing voice synthesis to model characteristics such as pitch and timbre.Read 8 Oct 2026 · sinsy.sp.nitech.ac.jp
Vocal control
The page provides settings labeled ALP, VIB, and PIT alongside vocal selection.Read 8 Oct 2026 · sinsy.sp.nitech.ac.jp

Plans and prices

Free online synthesis Free Uploads a MusicXML score to generate singing vocals Read 8 Oct 2026 · sinsy.sp.nitech.ac.jp

Every Sinsy plan and price →

Strong points and limits

Strong points

  • Accepts MusicXML score files
  • Uses DNN- and HMM-based synthesis
  • Provides ALP, VIB, and PIT controls
  • Compressed MusicXML uploads are supported
  • Free plan costs nothing

Limits

  • Does not accept vocal input
  • Japanese is the language option shown
  • Using synthesis implies agreement to site terms
  • About page is available in Japanese

Who it suits

It suits users who want to turn MusicXML scores into synthesized singing vocals through a web interface. It may also interest people seeking a score-based system with adjustable vocal parameters.

Verdict

Sinsy focuses on score-driven singing synthesis with defined controls and a documented version history. Its listed limitations include no vocal input and the language and terms details on the site.

Where Specifiction places it

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