AI karaoke · local vocal separation · desktop
Beltr removes or lowers lead vocals locally, syncs lyrics, and gives you a full karaoke experience on Mac, Windows, and Linux.
The problem
Most AI vocal remover tools stop after creating stems. Beltr goes further. It helps you turn your music into an actual karaoke experience with synced lyrics, TV display, phone remotes, pitch scoring, and export options.
AI vocal separation
Beltr splits each song into two tracks on your computer — vocals and instrumental. Lower the lead vocal, keep a guide vocal, or pull a clean karaoke mix.
Lower or fully remove the lead vocal for a clean karaoke bed. Keep some in as a guide vocal when a song is hard to follow.
Everything else — drums, bass, guitars, keys, synths — stays together as one balanced backing track.
AI vocal separation quality can vary by song, mix, and recording quality.
How it works
Five steps. No timeline editor, no cloud upload, no waiting on a catalog.
Import a music file from your own library — MP3, FLAC, or WAV.
Beltr uses local AI to split each song into vocals and instrumental.
Lower the vocal or keep a guide vocal, depending on the song.
Build a clean karaoke display with synced, readable lyrics.
Use party mode at home or export compatible karaoke files.
More than a vocal remover
Beltr ships the rest of the karaoke stack on top of the AI — so a song goes from your library to a real karaoke night.
Big, readable lyrics that follow the song, so anyone can sing along.
Turn any screen, TV, or projector into the karaoke stage.
Guests scan a QR code to queue and control songs from their phones.
Real-time scoring adds game-night energy and a leaderboard.
Export to MP3+G / CDG for compatible karaoke machines and players.
Comparison
A straight look at how Beltr stacks up against the other ways people try to make karaoke.
| Beltr | Basic vocal remover | Subscription stem tool | YouTube karaoke videos | |
|---|---|---|---|---|
| AI vocal separation | Yes — on-device | Yes | Yes — cloud | Pre-made only |
| Vocal + instrumental mixer | Yes | Sometimes | Some | No |
| Karaoke lyrics | Synced | No | Rare | Built into video |
| TV party mode | Yes | No | No | No |
| Phone remote queue | Yes | No | No | No |
| Pitch scoring | Yes | No | No | No |
| MP3+G export | Yes | No | No | No |
| One-time purchase | $19.99 launch | Varies | Monthly fee | Free, with ads |
| Mac / Windows / Linux | All three | Browser only | Browser only | Browser only |
Local · offline · yours
Beltr runs AI vocal separation on your desktop instead of forcing every song through a cloud-only workflow. Once installed, your karaoke workflow stays local.
Download
Pick your OS. Five songs free, no credit card.
Signed & notarized by Apple. Opens with no warning.
Windows SmartScreen may appear because Beltr is a new indie app.
Portable AppImage — runs on most distros.
Get the .deb for Debian & Ubuntu-based distros.
Windows without the Store? Download the .exe installer · triggers SmartScreen
Pricing
Test Beltr with five songs. If it works for your setup, unlock the full app with a one-time $19.99 launch purchase.
Limited launch pricing
One-time · no subscription · lifetime updates
Full download page · See all pricing details · Home karaoke setup · MP3+G export
FAQ
No. Beltr includes AI vocal separation, synced lyrics, TV party mode, phone remotes, pitch scoring, and karaoke export options. The vocal remover is one part of a full karaoke app.
AI vocal separation quality depends on the song, mix, and recording. Some songs separate better than others. Dense modern productions and tracks with heavy backing vocals tend to be harder.
Yes. Beltr processes songs locally on your desktop once installed — no cloud upload required for vocal separation.
Yes. Use the stem mixer to lower the vocal instead of removing it completely. A guide vocal can make a song much easier to sing along to.
Beltr is designed for common music files like MP3, FLAC, and WAV from your own library.
No. Beltr is a one-time purchase during launch pricing. Lifetime updates included.
Yes. Beltr supports MP3+G / CDG import and export for compatible karaoke systems.
macOS (Apple Silicon), Windows 10/11, and Linux (AppImage or .deb).
You need internet to download Beltr and to optionally fetch lyrics. Vocal separation itself runs locally.
Ready when you are
Use local AI vocal separation, synced lyrics, and party-ready features in one desktop app.
Try 5 Songs FreeMac, Windows, Linux · One-time $19.99 launch price · 5 songs free, no card