Vocal Remover — User Manual
What is the Vocal Remover?
The Mazmazika Vocal Remover separates any song into individual tracks (called stems) using AI-powered audio source separation. You can isolate the vocals, drums, bass, piano and other instruments — perfect for making karaoke and acapella versions, practising along with a backing track, remixing, or studying how a song is built.
Feed it a YouTube or SoundCloud link, or upload your own MP3, WAV or M4A file. Then choose how many tracks to split the song into, and whether you want a ZIP download or an interactive mixer.
What each plan gets
You can fill the whole form as a guest — the link, the file, the stem count. Signing in is only asked for when you press Remove Vocals, and your job resumes by itself once you're in. Everything reserved for Pro is marked in place with a padlock and a ★ PRO pill, so nothing is hidden from you:
| Free account | Pro | |
|---|---|---|
| Songs per day | 2 | Unlimited |
| Maximum song length | 5 minutes | 15 minutes |
| Stem counts | 2 (Karaoke) | 2, 4 and 5 |
| Delivery | ZIP download | ZIP download or live mixer |
| Save to My Files | — | Yes |
| Queue | Waits its turn | Skips the line |
A bar above the tool shows how many uses you have left today, or Pro — unlimited access on a paid plan. If files you saved earlier are locked behind Pro, nothing has been deleted — your collection stays on the server and comes back the moment you upgrade.
The Vocal Remover at a glance
Open it from the sidebar (or Audio Tools → Vocal Remover). There are two tabs — Remove vocals (start a new job) and My Files (your saved songs). The form itself is numbered 1-2-3: source, stems, then what happens next.
Step 1 — Choose your audio source
On the Remove vocals tab, pick your source:
- YouTube / SoundCloud — paste the song link and the audio is fetched for you; there's nothing to download first.
- Upload file — drop in an MP3, WAV or M4A from your device, or click to browse (up to 30 MB).
Step 2 — Choose the number of stems
How many stems? decides how many separate tracks the song is split into:
| Stems | Label | You get | Best for |
|---|---|---|---|
| 2 | Karaoke | Vocals + full instrumental | Karaoke and acapella — the free option |
| 4 | Band ★ PRO | Vocals · drums · bass · other | Remixing and instrument isolation |
| 5 | Producer ★ PRO | Adds an isolated piano stem | Detailed separation and practice |
On a free account only 2 stems can be selected; the 4- and 5-stem cards are dimmed with a padlock, and tapping one opens the upgrade prompt rather than switching. Two stems is also the fastest choice when all you want is to drop or keep the singer.
Step 3 — Choose what happens next
What happens next? controls how you receive the result:
- Download ZIP — the free default. Skips the mixer and sends every separated track to your device in one ZIP.
- Open in mixer (★ PRO) — opens an interactive multi-track player where you can listen, mute and solo tracks, rebalance volumes, sing or play along, and export.
Save this project, next to the button, keeps the job in My Files for later. It is also a Pro control — on a free account the toggle carries a padlock and a one-off ZIP is what you get.
Step 4 — Remove the vocals
Click Remove Vocals. A progress screen walks through four stages — Fetching audio, Analyzing, Separating stems, Finishing — and a full song usually takes about a minute. When it's done you land in the mixer, or your ZIP download begins.
Tip: only a few songs are separated at once, so at busy moments you may wait for a slot. The page tells you how many people are ahead of you and keeps going by itself — just leave it open. Pro members skip the line.
Using the mixer (Pro)
The mixer opens right inside the page — no new tab. Each separated part becomes its own track with a waveform. The example below is a 2-stem result with Vocals and Other (the full instrumental).
For each track you can:
- M (Mute) — silence that track in the mix.
- S (Solo) — hear only that track; press it again to release.
- Volume fader — drag to set how loud the track sits.
- Download — save just that single track.
- Waveform — shows the audio; click anywhere on it to jump to that point.
Playback
- Play / Pause — start or pause all tracks together, always in sync.
- Seek bar — drag to jump anywhere in the song (or click any track's waveform).
Sing or play along (right after processing)
Straight after you process a fresh song, a recording bar appears so you can perform over the stems. It isn't offered on a job you reopen later:
- Record — sing or play along; a level meter shows you're being heard, and your take lands on a new You track, in time with the song. Seeking is held still while you record.
- Upload take — add an audio file of your own as the You track instead of recording.
- Boost — lift a quiet take by 0 to 12 dB before it is mixed in.
- Pause on stop — when ticked, playback pauses the moment you stop recording.
- Remove take — appears once you have a take; clears it so you can start over.
Downloading your results
From the mixer you have three ways to save your work:
- Download mix — combines all the currently audible tracks, at their current volumes, into one file. Mute what you don't want first — muting Vocals gives you a karaoke version, muting everything else gives you the acapella.
- Download all — saves every separated track as individual files in one ZIP.
- Per-track download — the arrow on a track row saves that one track on its own.
Use New track to come back and process another song.
Download (ZIP) mode
With Download ZIP you skip the mixer entirely. After processing, your browser downloads a ZIP holding all the stems as MP3 files — the quickest route when you don't need to listen or rebalance first, and the way free accounts receive their results.
My Files — your saved songs (Pro)
Every saved job appears under the My Files tab, showing its format, a MIXER or DIRECT badge for how it was processed, and the date.
- Reopen a mixer job instantly by clicking its row — no re-processing needed.
- Re-download an earlier result at any time.
- Rename your files, reorder them by dragging, and delete the ones you no longer need.
Supported formats & limits
| Input sources | YouTube links, SoundCloud links, MP3, WAV, M4A |
| Output format | MP3 |
| Maximum song length | 5 minutes on a free account · 15 minutes on Pro |
| Maximum upload size | 30 MB |
| Typical processing time | About a minute for a full song |
Tips for best results
- Use a clean, high-quality source. Better input gives a cleaner separation.
- Match the stem count to your goal. 2 stems for karaoke and acapella; 4 or 5 when you need instrument-level control.
- Studio recordings work best. Live recordings are harder to pull apart than studio versions.
- Modern productions separate more cleanly than very old or low-fidelity recordings.
- Trim long tracks before uploading if you're on a free account — anything over 5 minutes is turned away before processing starts.
Troubleshooting
- It asks you to sign in. That happens at the Remove Vocals click, not before. Sign in and the job you set up carries on by itself.
- Daily limit reached. Free accounts get 2 songs a day. Come back tomorrow, or upgrade for unlimited use.
- The track is too long. The message names your plan's cap and the track's actual length — 5 minutes on free, 15 on Pro.
- The song won't process. Check that the link is a valid YouTube or SoundCloud URL, or that your file is an MP3, WAV or M4A under 30 MB and not empty.
- A padlock on a card. 4 and 5 stems, the mixer and Save this project are Pro features; tapping one opens the upgrade prompt.
- Recording isn't available. Sing-along appears right after you process a fresh song; it isn't offered when you reopen an older saved job.
- Processing is taking a while. Requests queue when the servers are full. Keep the page open — it continues automatically, and the notice shows your place in line.
Related tools
Want the chords of a song? Use the Chord Analyzer. Want to build a beat from your stems? Take them into the Beat Maker.