NEUTRINO vs Sinsy
NEUTRINO
studio-neutrino.comSinsy
sinsy.sp.nitech.ac.jpSide by side
| Figure | NEUTRINO | Sinsy |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | Yes |
| Plans published | 2 | 1 |
| Spec score · AI Singing Voice Generators | 8.6 (#6) | 7.4 (#19) |
| Input format | MusicXML is the primary score format; the FAQ suggests converting MIDI or other project formats through tools such as UtaFormatix. | The web page accepts a score file in MusicXML format. |
| Purpose | NEUTRINO is an AI singing voice generator that synthesizes singing from sheet music. | Sinsy generates singing vocals from musical scores using DNN- and HMM-based synthesis. |
| Synthesis method | The software estimates timing, pitch, voice quality and breathiness from a score, then synthesizes audio with a vocoder. | The about page says the system uses DNN- and HMM-based singing voice synthesis to model characteristics such as pitch and timbre. |
Plans
In their own words
NEUTRINO
NEUTRINO is an AI singing voice generator that synthesizes vocals from sheet music. Users provide lyrics and melody; the system estimates vocal timing, pitch, voice quality, and breathiness, then a vocoder produces the singing. The project says its models draw vocal traits from recordings made with performers' permission or audio released by public institutions, rather than existing pretrained models. The FAQ describes Muon voice retakes and adjustable quality and processing speed, with advanced, standard, and elements modes. Advanced and standard output is 48 kHz, 16-bit mono WAV; elements output is 24 kHz, 16-bit mono WAV. It is available for Linux, macOS, web, and Windows. Users download the software and add a voice library. NEUTRINO is free for general music and audio production, but embedding the software or using generated audio inside an application requires separate permission. Character-specific terms also apply to ordinary audio-file uses and vary by character and asset type. Users cannot currently create their own voice libraries with a released framework, according to the FAQ.
Sinsy
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.