Audimee From $9/mo · Free plan 9.1 Visit NEUTRINO
studio-neutrino.com
What it is
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.
Spec sheet
- What it does
- NEUTRINO is an AI singing-voice synthesizer that turns sheet music and lyrics into sung audio.Read 21 Oct 2026 · studio-neutrino.com
- Purpose
- NEUTRINO is an AI singing voice generator that synthesizes singing from sheet music.Read 4 Oct 2026 · studio-neutrino.com
- Platforms
- The about page says NEUTRINO runs on Windows, macOS, Linux, and online; the download page lists Windows, macOS, and Google Colab.Read 4 Oct 2026 · studio-neutrino.com
- Integrations
- The FAQ lists JOYSOUND Uta-Suki Music Post, BIG UP!, TuneCore Japan, and Dwango’s music monetization service as supported distribution services as of May 2025.Read 4 Oct 2026 · studio-neutrino.com
- Support
- The FAQ directs users whose questions remain unresolved to contact the project.Read 4 Oct 2026 · studio-neutrino.com
- AI-training restriction
- The EULA forbids using generated audio, intermediate data or voice libraries as training or fine-tuning data for other AI singing, speech or voice-conversion systems.Read 21 Oct 2026 · studio-neutrino.com
- API and SDK
- The official FAQ and download materials describe command-line scripts, MusicXML input and Orbit, but do not publish a developer API or SDK.Read 21 Oct 2026 · studio-neutrino.com
- Audio output
- The standard output is 48 kHz, 16-bit mono WAV, with an elements mode at 24 kHz.Read 21 Oct 2026 · studio-neutrino.com
- Commercial use
- Generated audio may be used commercially or non-commercially, subject to each voice library's separate terms.Read 21 Oct 2026 · studio-neutrino.com
- Data provenance
- The maker says training uses performer-authorized recordings or public institutional datasets and is trained from scratch without pre-trained models.Read 21 Oct 2026 · studio-neutrino.com
- Desktop and online support
- The maker provides Windows, macOS, Linux and Google Colab distributions.Read 21 Oct 2026 · studio-neutrino.com
- Developer and release
- Independent reference material identifies SHACHI as developer and dates the first public release to February 22, 2020.Read 21 Oct 2026 · es.wikipedia.org
- Documentation and support
- The official FAQ covers installation, rendering errors, GPU issues, file formats and licensing, and directs unresolved questions to a contact form.Read 21 Oct 2026 · studio-neutrino.com
- Download sizes
- The current download page lists roughly 3.05 GB for Windows Tau, 1.76 GB for macOS Tau, 1.70 GB for Google Colab Tau and about 346–349 MB for individual Tau voice libraries.Read 21 Oct 2026 · studio-neutrino.com
- Free availability
- The software and many voice libraries are free to download and use for ordinary music and audio production.Read 21 Oct 2026 · studio-neutrino.com
- Free use
- NEUTRINO is free to download and use for general music and audio production, while embedding the software or using generated audio within an application requires separate permission.Read 4 Oct 2026 · studio-neutrino.com
- Generation history
- The product has progressed from Electron to Muon and then Tau generations, with Muon introducing diffusion models and Tau adding further stability and expression improvements.Read 21 Oct 2026 · studio-neutrino.com
- Generation options
- The FAQ says Muon supports voice retakes and adjustable quality and processing speed, with advanced, standard, and elements modes.Read 4 Oct 2026 · studio-neutrino.com
- GPU fallback
- Older unsupported NVIDIA GPUs can be bypassed by running the renderer in CPU mode.Read 21 Oct 2026 · studio-neutrino.com
- GPU memory
- The FAQ says 4–6 GB of GDDR VRAM generally works, while less than 4 GB can cause memory failures and 6 GB or more is usually sufficient.Read 21 Oct 2026 · studio-neutrino.com
- Hardware requirements
- The FAQ says about 4–6 GB of GPU VRAM is sufficient, while some processing may run out of memory below 4 GB; it also describes CPU processing modes.Read 4 Oct 2026 · studio-neutrino.com
- How it works
- Its AI estimates vocal timing, pitch, voice quality, and breathiness from sheet music, then a vocoder synthesizes the voice.Read 4 Oct 2026 · studio-neutrino.com
- Input and workflow
- The project says users can make it sing by entering lyrics and melody, and its download page instructs users to download NEUTRINO and add a voice library.Read 4 Oct 2026 · studio-neutrino.com
- Input format
- MusicXML is the primary score format; the FAQ suggests converting MIDI or other project formats through tools such as UtaFormatix.Read 21 Oct 2026 · studio-neutrino.com
- Licence status
- NEUTRINO is freeware under a maker-owned EULA; the EULA assigns copyright to SHACHI and prohibits unapproved redistribution and reverse engineering.Read 21 Oct 2026 · studio-neutrino.com
- Limit: DAW integration
- SoundBounty says NEUTRINO is not a DAW plug-in and requires exporting WAV audio for DAW use.Read 21 Oct 2026 · soundbounty.com
- Limit: language coverage
- SoundBounty reports that lyrics are entered in Japanese hiragana or katakana and that English and Chinese are not currently supported.Read 21 Oct 2026 · soundbounty.com
- Limit: setup complexity
- LA Studio's workflow requires downloading and extracting a ZIP, preparing MusicXML in notation software, editing run-script variables and then rendering before DAW import.Read 21 Oct 2026 · la-studio.cc
- Linux architecture
- Linux builds support x86_64 CPUs only; ARM64 Linux is not supported and is not planned.Read 21 Oct 2026 · studio-neutrino.com
- macOS compatibility
- Older macOS releases may fail because Apple's supported development environments no longer cover them; the FAQ specifically confirms an older v2.3.1 build on macOS 11 Big Sur.Read 21 Oct 2026 · studio-neutrino.com
- Maker identity
- The EULA names the producer as SHACHI at STUDIO NEUTRINO.Read 21 Oct 2026 · studio-neutrino.com
- Neutrino Orbit
- Orbit is a browser application that accepts a score, generates a selected voice and provides playback and WAV-oriented controls.Read 21 Oct 2026 · studio-neutrino.com
- Notable limitation
- The FAQ says users cannot currently create their own voice libraries with a released framework because of quality-control and support-cost concerns.Read 4 Oct 2026 · studio-neutrino.com
- Notable news
- The project announced the Orbit web alpha-2 test on October 9, 2026.Read 21 Oct 2026 · studio-neutrino.com
- Orbit device access
- The Orbit alpha web service requires no installation and can be accessed from computers, smartphones and tablets.Read 21 Oct 2026 · studio-neutrino.com
- Orbit limitations
- The maker warns that the alpha test may be ended without notice.Read 21 Oct 2026 · studio-neutrino.com
- Orbit update
- The October 16, 2026 Orbit update improved lyric and pronunciation parsing, tempo and notation handling, multi-voice reading and long-phrase adjustment, and fixed some server-stop and maintenance-display bugs.Read 21 Oct 2026 · studio-neutrino.com
- Output formats
- The FAQ lists advanced and standard output as 48 kHz, 16-bit mono WAV and elements output as 24 kHz, 16-bit mono WAV.Read 4 Oct 2026 · studio-neutrino.com
- Praise: free Japanese singing
- SoundBounty highlights NEUTRINO as a free way to create Japanese AI singing from MusicXML and recommends it for users wanting to experiment without cost.Read 21 Oct 2026 · soundbounty.com
- Praise: natural output
- LA Studio describes NEUTRINO as producing natural-sounding vocals with vibrato and breath from MusicXML scores.Read 21 Oct 2026 · la-studio.cc
- Rating on SoundBounty
- 2.7 out of 5 from 1 comparative review articleRead 21 Oct 2026 · soundbounty.com
- Synthesis method
- The software estimates timing, pitch, voice quality and breathiness from a score, then synthesizes audio with a vocoder.Read 21 Oct 2026 · studio-neutrino.com
- Tau Windows update
- Tau v3.2.5.ex changed its bundled CUDA environment from CUDA 13 to CUDA 12 and fixed cases where GPU processing ran despite being disabled.Read 21 Oct 2026 · studio-neutrino.com
- Training data
- The project says its models are trained from recordings made with performers’ permission or audio released by public institutions, and that it does not use existing pretrained models.Read 4 Oct 2026 · studio-neutrino.com
- Voice library count
- The home page lists 17 published characters as of September 2026.Read 21 Oct 2026 · studio-neutrino.com
- Voice realism
- The maker says its models reproduce singing mannerisms and vocal characteristics learned from recorded singers.Read 21 Oct 2026 · studio-neutrino.com
- Workflow integrations
- The FAQ recommends MuseScore or other notation software for MusicXML creation, MIDI-to-MusicXML workflows through a DAW, and a community Windows adjustment-support GUI.Read 21 Oct 2026 · studio-neutrino.com
Plans and prices
NEUTRINO Free Free for general music and audio production; system integration or use of generated audio inside an application requires separate permission Read 4 Oct 2026 · studio-neutrino.com
NEUTRINO freeware Free Free for general music/audio production · separate permission required for embedding the software or using generated audio inside applications Read 21 Oct 2026 · studio-neutrino.com
Strong points and limits
Strong points
- Synthesizes singing from sheet music, lyrics, and melody.
- Offers adjustable quality and processing speed.
- Exports WAV in listed modes and sample formats.
- Free for general music and audio production.
Limits
- Application embedding requires separate permission.
- Character-specific terms vary by character and asset type.
- Users cannot create voice libraries with a released framework.
Who it suits
NEUTRINO suits music and audio producers who want to synthesize vocals from lyrics and melody. Users planning application integration or character-specific commercial uses should check the separate permission and terms requirements.
NEUTRINO in depth
Read the full write-up
Overview
NEUTRINO turns lyrics and melody into synthesized singing, with a workflow built around written music rather than recorded vocals. It suits composers and producers who want a free vocal part for music or audio projects. Its biggest boundary is commercial embedding: putting the software or its generated audio inside an application needs separate permission.
Users download the software and add a voice library. The system estimates vocal timing, pitch, voice quality and breathiness from sheet music, then synthesizes the part with a vocoder. The project says its models learn from recordings made with performers’ permission or audio released by public institutions, rather than from existing pretrained models. That approach is relevant to users who care how the models were built, but NEUTRINO does not offer vocal-input conversion or user voice cloning.
Key features
Generation controls and output
Muon supports voice retakes and adjustable quality and processing speed, with advanced, standard and elements modes. These controls provide room to revise a take or prioritize speed; they do not change the notation-led nature of the workflow. Advanced and standard output is 48 kHz, 16-bit mono WAV, while elements output is 24 kHz, 16-bit mono WAV. Choose the former modes when the higher stated sample rate matters, or elements when its lower-resolution export meets the need.
Voice libraries and distribution
NEUTRINO depends on voice libraries that users add after downloading the software. Users cannot currently create their own libraries through a released framework; the project cites quality control and support costs. That makes the available voices a meaningful constraint for anyone seeking a custom sound. As of May 2025, supported distribution services include JOYSOUND Uta-Suki Music Post, BIG UP!, TuneCore Japan and Dwango’s music monetization service.
Hardware and help
The FAQ says about 4–6 GB of GPU VRAM is sufficient, while some processing may run out of memory below 4 GB. CPU processing modes are also described, giving users an alternative to GPU processing. For unresolved questions, the project directs users to contact it.
Pricing
NEUTRINO: free. The free plan covers general music and audio production, making it a strong fit for composers and producers who can use generated vocals in ordinary audio files. NEUTRINO itself places no restriction on those ordinary audio-file uses, but character-specific terms also apply and vary by character and asset type. Embedding the software or using generated audio inside an application requires separate permission, so product developers should not treat the free plan as a blanket commercial license.
Platforms
NEUTRINO is listed for Linux, macOS, web and Windows. GPU memory needs may matter on some setups, though CPU processing modes are also described.
Who it's for
Choose NEUTRINO if you write vocal parts as lyrics and melody and want synthesized singing for general music or audio production without paying for the software. It is a poor fit if you need to convert a recorded vocal, clone a voice, build your own voice library or embed the generator in an application without securing separate permission.
Pros and cons
Pro: Free general-production use makes it accessible for music and audio projects without a software fee.
Pro: Retakes, quality and speed controls, and three modes give users meaningful choices in generation.
Pro: Advanced and standard modes export 48 kHz, 16-bit mono WAV.
Con: The workflow starts from written music, not vocal input, and there is no voice cloning.
Con: Users cannot make their own voice libraries with a released framework, limiting custom-voice work.
Con: Application embedding or in-app use requires separate permission, and character-specific terms still apply to audio use.
Alternatives
AI Singing Voice Generators is the broader directory category for comparing tools in this field.
Pick Revocalize AI if its broad platform support or free plan’s five monthly conversion minutes and one Starter AI voice better match a limited conversion workflow. VoiSona Song is another free-plan option for users looking for a singing tool on iOS, macOS or Windows. Choose Kits AI if its web, Windows or API availability and free plan’s 15 conversion minutes suit the job; that plan has zero voice slots and zero download minutes. SightSinger may suit someone seeking a web-based option with a free trial and a $6.00 per month Solo plan.
SoulX-Singer is a free alternative for researchers and developers who want code and model weights under Apache 2.0. Vocalize offers an API plan billed at $0.048 per minute of generated audio plus $0.003 per request, with prepaid, no-subscription pricing. Audimee has a free plan with 15 conversion minutes, 11 royalty-free voices and MP3 downloads for personal use; choose it if those limits suit your conversion needs. Musicful is another freemium option, with Android, iOS, API and web platforms.
Verdict
NEUTRINO is a compelling free choice for composers and producers who want to generate singing from written lyrics and melody, with adjustable generation modes and WAV output. Its narrow input workflow, fixed voice-library approach and application-use permission boundary are decisive drawbacks for vocal conversion, custom-voice creation and embedded products. Choose it for ordinary audio production; look elsewhere if those limits define the project.
Verdict
NEUTRINO specifies its vocal-generation workflow, output modes, and WAV formats. Its free general-production use does not cover application embedding, and character terms still apply.
Where Specifiction places it
- AI Singing Voice Generators#6 of 258.6
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