MonoBand: AI Stem Splitter

MonoBand turns any song you own into a full practice and remix studio — on your iPhone, iPad, and in your car with CarPlay. Split it, sing it, read the lyrics, learn the chords. No internet, no subscription. Using an on-device AI model running on Apple silicon, MonoBand separates a track into 6 independent instruments — vocals, drums, bass, guitar, piano, and "other" — in minutes. Then it gives you everything you need to learn, practice, and create: SEPARATE & MIX 6-stem AI separation, 100% on device Per-stem volume, instant solo, and mute 3-band EQ and stereo pan on every channel Per-channel and full-song waveforms — tap to jump anywhere Non-destructive clip editor: split, move, mute, and fade regions PRACTICE Transpose ±24 semitones without changing tempo Change speed without changing pitch Draw an A > B practice loop right on the waveform and drag its edges Section markers (verse, chorus, solo) as flags on the timeline Automatic chord detection, synced to playback and transposed with you Automatic BPM and key detection LYRICS & TRANSLATION Read the lyrics off the separated vocal — not the full mix, so recognition is far better Lyrics scroll in time with the music, with the current line highlighted Show a translation under each line, in the language you choose Built-in editor: fix a word, split or merge lines, nudge timings, replay any line Everything runs on your device — no audio or text is ever uploaded KARAOKE Any song in your library becomes karaoke — the melody comes from its own vocal stem Sing along and see your pitch land on the note, with a live score and streaks Stars and a summary at the end of every take Scrub back to a tricky phrase without restarting CARPLAY Browse your songs, playlists, and favorites on the car display One-tap Karaoke — mute the vocals and sing along Practice Mix: mute or solo any instrument while you drive Loop the current song, restart it, and pick up where you left off RECORD Record up to 4 of your own takes over the song Vocal effects: reverb, delay, compressor, noise gate, low-cut, distortion Per-device recording alignment and per-take timing shift Non-destructive trim on your recordings LIBRARY & PLAYBACK Playlists, folders, and favorites — with continuous play, shuffle, and repeat Playback resumes exactly where you left off, per song AirPlay 2 and Lock Screen / Control Center playback with next/previous Export individual stems, the full mix, just the loop, or an aligned multitrack ZIP for your DAW (WAV / MP3) Back up your library — or just the songs you pick — into a single ZIP, and import it back on any device; songs you already have are detected and skipped Light and Dark mode · Available in 8 languages PRIVACY FIRST Everything happens on your device. MonoBand has no servers, no analytics, no third-party tracking, and no account. Your songs, stems, lyrics, and recordings never leave your phone. Import audio from Files, the Photos app (videos too), your Music library, or record fresh. Note: DRM-protected streams (Apple Music, Spotify) cannot be imported — use songs you own. Made with care for musicians, learners, and producers.

Synced lyrics, and translation as you listen This is the feature only MonoBand can do properly: the lyrics are read from the isolated vocal stem, not the full mix. With no drums or guitars in the way, recognition is far better — and the lyrics stay in time with the music as it plays. Lyrics scroll with the song, with the current line highlighted. A translation under each line, in the language you choose — translated entirely on your device. Speech recognition isn't perfect on singing, so there's a built-in editor: fix a word, split or merge lines, nudge the timing, and play any line on its own to hear what's actually sung. Got the language wrong? Read the vocals again in another one. Back up and move your library Export the songs you choose — originals, separated channels and recordings — into a single ZIP. Import it back on any device. MonoBand shows what's inside first, so you pick what to restore. Songs you already have are detected, flagged and skipped — and the summary tells you how many duplicates it passed over. Also in this update: A scrub bar in Karaoke — jump back to a tricky phrase without restarting your take. The project screen is reorganized, so recording, karaoke and lyrics follow in a clear order. Lyrics need the song to be split first — that's where the vocal comes from. Note that speech recognition and translation aren't available in Hebrew yet; those are iOS limitations and will open up with system updates. Thanks for using MonoBand!