The location mix has a great line of dialogue sitting under a generator hum and a radio someone forgot to turn off. The licensed track the client loves has a vocal that fights the voiceover. The temp music you cut to is a full mix and the composer wants a version without the drums to write over. Three jobs, one tool category: stem separation, the AI models that take a finished mix and pull it back apart into dialogue, music, effects, vocals, drums, bass, and the rest. Two years ago this was a novelty that left watery artifacts on everything. Now it’s a Tuesday.
This guide is the editor’s version, not the producer’s. Most stem-separation coverage is written for people remixing songs, and it skips the two things that decide the category for post: whether a tool has a dialogue, music, and effects mode rather than vocals-and-instruments, and what you are allowed to do with the stems once you have them. That second part is the spine of this piece, because the answer surprises people. Separating a track grants you nothing. The tool splits the audio; the license you already hold decides whether the split is legal to use, and for licensed music the answer is usually no.
Last updated: September 2026. Some links below are affiliate links. Buy through them and it helps keep the site running, at no extra cost to you. Prices and vendor documentation checked September 2, 2026, on each vendor’s live pages; the stock-library license clauses carry the date we read them. We didn’t run a listening test this round, so the entries below are verified pricing, tiers, terms, and documented features, not our own artifact scores.
TLDR
If you just want the answer: iZotope RX 12 Standard ($399, one-time) is the stem tool for editors, because it runs locally, plugs into Premiere and Resolve, and its Music Rebalance and Dialogue Isolate modules handle the two jobs that come up every week. RX 12 Advanced ($1,399) is the only version with Scene Rebalance, the true dialogue, music, and effects split, so it’s the buy for anyone who builds M&E-style splits from stereo mixes as a regular job. LALAL.AI Pro ($15 a month billed annually) is the cloud pick, and the only cloud tool with a local processing mode. Moises has the cheapest dialogue, soundtrack, and effects mode but no public pricing page, and if you own Resolve Studio or Logic Pro you already own a good separator. And read the rights section before you split anything you licensed.
Four jobs, and the mode that fits each
Every separator advertises a stem count. The count matters less than the model behind it, because music models and post models are trained on different things. A music model knows vocals, drums, bass, guitar, piano, and “other.” Feed it a documentary scene and the dialogue lands in “vocals,” the room tone lands in “other,” and the effects get smeared across both. A post model knows dialogue, music, and effects as categories, which is the split a re-cut, a dub, or a trailer house wants.
So the four editor jobs map like this. Pulling dialogue off a location mix to re-lay music is a two-way job (voice versus everything), and nearly every tool does it: RX’s Dialogue Isolate, LALAL’s Voice Cleaner, Resolve’s Voice Isolation. Rebalancing a licensed track under voiceover (drop the vocal, duck the drums) is a music-model job, and it’s where RX Music Rebalance, LALAL, Moises, Logic, and the free tools all live. Building a dialogue, music, and effects split from a finished stereo mix is the hard one, and only three tools on this page have a real mode for it: RX Advanced’s Scene Rebalance, Moises’s Multimedia Tracks, and Resolve Studio’s Dialogue Separator, which splits dialogue from background and ambience rather than a full three-way. Cleaning a temp track so a composer can write over it is job two again, on audio you own.
The picks
Best overall for editors: iZotope RX 12 Standard ($399)
RX 12 Standard is the one tool here built around dialogue first and music second, which is the right way round for post. It’s a local application and a set of plugins, so the client’s audio never uploads anywhere, and there are no minutes to buy. The two modules that matter: Music Rebalance splits a mix into vocals, bass, percussion, and other with a slider on each, so ducking the vocal under a VO is a fader move, and Dialogue Isolate pulls a voice out from under noise and music. RX 12 added Stems View, which lays the separated stems out visually so you can apply any other RX repair tool to one stem without touching the rest. iZotope’s own edition table puts Stems View, Music Rebalance, and Dialogue Isolate in Standard and Advanced, and Scene Rebalance in Advanced only. Toolfarm sells Standard at $399, Advanced at $1,399, as of September 2.
The verdict on which edition, stated plainly: Standard for music rebalancing and dialogue cleanup, which is nearly everyone. Advanced only if a three-way dialogue, music, and effects split is a weekly deliverable. A thousand dollars is a lot to pay for one module, and Moises does a version of that split for the price of lunch. What Advanced buys the people who need it is a lossless, local split that sits inside the rest of the RX toolkit. One more thing to know: RX is a repair suite that happens to separate, so the interface assumes you know what a spectrogram is. If you only ever want “remove the vocal,” LALAL is faster.
Best cloud tool: LALAL.AI Pro ($15/month annual, $19.99 monthly)
LALAL.AI is the cloud separator we’d point an editor at, for one feature the other cloud tools don’t have: the Pro plan includes a desktop app and a VST plugin with local processing, so a client’s audio can be split on your own machine without uploading. That answers the confidentiality objection that rules out most web tools for unreleased work. Pro is $15 a month billed annually ($180), or $19.99 monthly, with unlimited minutes in the relaxed queue, 250 fast-queue minutes a month, 2GB uploads, batch processing, and the plugin and local mode. Lite at $7.50 annual ($9.99 monthly) is the same service without the plugin, the local mode, or the fast-queue allowance. The free Starter tier gives you 10 minutes and previews, enough to test your own file before paying.
What it lacks is a post mode. LALAL’s splits are music stems (vocals, instrumental, drums, bass, guitars, piano, synths, strings, winds) plus a Voice Cleaner that separates a voice from everything else, so it covers jobs one and two and not job three. Its terms, last updated July 30, 2026, put the rights question where every separator puts it: “You are solely responsible for the usage and distribution of uploaded audio files and end-result audio files.” Keep that sentence in mind for the rights section.
Cheapest dialogue, music, and effects split: Moises Pro
Moises is a musician’s app that added a post feature almost nobody in post has noticed. Its Multimedia Tracks mode splits a file into three labeled tracks, dialogue, soundtrack, and effects, on a paid plan, and it accepts video files and public URLs. That’s the Scene Rebalance job for a fraction of the price, and for a reel, a social cut, or a short doc it’s the first thing we’d try. The limits are the ones you’d expect from a consumer app: it’s cloud-only with no local mode, files are capped in length on every tier, and it’s built for songs, so the desktop workflow is upload, wait, download. Moises doesn’t publish a pricing page (the URL redirects to the app), so check the Pro price in-app before you plan around it. There’s no affiliate program either, which is why there’s no link. It earned the mention anyway.
Already-own-it: DaVinci Resolve Studio ($295) and Logic Pro ($199.99)
If you cut in Resolve Studio, check the Fairlight page before buying anything. Studio has Voice Isolation for the two-way job, a Dialogue Separator that splits dialogue from background and ambience, and Music Remixer, which breaks a track into vocals, drums, bass, guitar, and other with per-stem sliders right on the timeline. All of it runs locally with no file caps, and the free version of Resolve has none of it. Studio is $295 from Blackmagic, and if you’re buying it anyway, the Speed Editor bundle ships the license with the keyboard for $435, which is the math we ran in the editing controllers guide. We covered the rest of Resolve’s AI audio tools in AI in DaVinci Resolve.
Mac editors who own Logic Pro own a separator too. Logic’s Stem Splitter runs on-device on Apple silicon and splits a song into vocals, drums, bass, guitar, piano, and other, and it won MusicRadar’s eleven-tool listening test in January 2026 outright. It’s a music model, so dialogue lands in “vocals” and noise in “other,” and it’s $199.99 one-time on the Mac App Store or part of Apple’s Creator Studio subscription. No affiliate program covers App Store apps, so no link.
Free and local: Ultimate Vocal Remover and Demucs
The free path is Ultimate Vocal Remover (UVR5) running Demucs and the newer Roformer models, all open source, all on your own GPU. On the public MVSEP leaderboard the Roformer models lead Demucs by several decibels of vocal signal-to-distortion, which is to say the free models are competitive with the paid cloud tools on music. The price is your time: the main UVR5 release dates from 2023, the original Demucs repository was archived at the start of 2025 and lives on in a fork, the Roformer models come through a community UI fork, and you’ll want an NVIDIA card with at least 6GB of memory or an Apple silicon Mac. There is no dialogue, music, and effects model; the community answer is a vocal model as the dialogue stem plus the denoise and dereverb models. A tinkerer’s tool, not a deliverable pipeline, and a very good one.
Side by side
| Tool | Price | Runs locally | Music stems | Dialogue / music / effects mode | Plugs into the NLE |
|---|---|---|---|---|---|
| RX 12 Standard | $399 one-time | Yes | 4 (Music Rebalance) + Dialogue Isolate | No (Dialogue Isolate is two-way) | Yes (plugins + standalone) |
| RX 12 Advanced | $1,399 one-time | Yes | 4 + Dialogue Isolate | Yes (Scene Rebalance) | Yes |
| LALAL.AI Pro | $15/mo annual, $19.99 monthly | Pro only (desktop app + VST, local mode) | Up to 10 + Voice Cleaner | No | VST plugin on Pro |
| Moises Pro | Not published (in-app) | No | Up to 5 | Yes (Multimedia Tracks) | No |
| Resolve Studio | $295 one-time | Yes | 5 (Music Remixer) | Partial (Dialogue Separator: dialogue / background / ambience) | It is the NLE |
| Logic Pro Stem Splitter | $199.99 one-time | Yes (Apple silicon) | 6 | No | No |
| UVR5 / Demucs | Free | Yes (GPU) | 4 to 6 by model | No | No |
What a separated stem is, legally
Here is the part the tool vendors and the tutorial channels both skip. Under US copyright law a derivative work is “a work based upon one or more preexisting works, such as a translation, musical arrangement… or any other form in which a work may be recast, transformed, or adapted,” and the right “to prepare derivative works based upon the copyrighted work” belongs to the copyright owner alone (17 U.S.C. §101 and §106). An isolated vocal, a drumless version, a stem you re-lay under a different picture: each of those is the track recast. Whether you made it with a razor blade in 1975 or a neural net this morning changes nothing about who holds the right.
Every separator’s terms push that question back to you. LALAL’s “solely responsible for the usage and distribution” line above is typical, and the rest of the field reads the same way: you warrant you have the rights to the file, and the vendor grants you nothing in it. The tool is a scalpel, and it doesn’t come with a permission slip. So the question is never “can this tool split the track” but “does my license let me use the split,” and for stock music the licenses are explicit.
| Library | Document and date read | What you may do to a track | Official stems? |
|---|---|---|---|
| Epidemic Sound | Pro Subscription Music License, last update April 27, 2026; read in full July 28, 2026 | “No edits… you may not otherwise edit, alter, or change the Licensed Works… you may not create new music based on any Licensed Works.” Cut, loop, fade, and mixing the stems Epidemic supplies are the allowed edits. | Yes. Epidemic supplies stems for its tracks, so the legal way to get a drumless version of an Epidemic cue is to download Epidemic’s drum-free stem set, not to separate the mix. |
| Artlist | Artlist License, effective February 15, 2026; read September 2, 2026 | Assets “may not be used, copied, distributed, performed, presented, sold, licensed, shared, or otherwise exploited as standalone content (such as music, footage, or images on their own), nor may they be used to create derivative works like remixes or covers.” | Artlist has added stems on its higher plans; check your plan before separating anything. |
| Soundstripe | Terms and Conditions of Use, last updated November 24, 2025; read July 28, 2026 | You may not “make available, distribute, resell, or perform the Soundstripe Library… separately from the Project,” and for its Warner Chappell catalog, no “arrangements, derivations, stems, or alternative versions… except for minor technical edits or linear edits for time.” | Yes on Pro and Enterprise, per Soundstripe. |
| Musicbed | License Terms, last updated August 13, 2025; read July 28, 2026 | “Licensee may not materially alter, edit, combine, or lift the Licensed Content in any way,” and no “audio download or other standalone file” may be distributed. | Not verified; ask before you rely on it. |
Read those together and the rule writes itself. Official stems from the library you already pay for are the first answer: Epidemic and Soundstripe Pro ship them, which is the whole point of paying for a stems-included plan. AI separation is for audio you or the client own outright: location mixes, voiceover, the client’s own masters, temp tracks the composer sent as a mix. A separated stem of a licensed cue never leaves the single production it was licensed for, and never becomes a standalone file, because the moment you export it on its own you’ve made the derivative the license forbids. And the platforms’ Content ID systems don’t care how the stem was made; Epidemic’s help center bans registering edited versions at all. We mapped the rest of the music-licensing minefield, including what the AI generators grant, in our AI music licensing guide.
Covered, not picked
AudioShake is the professional reference for dialogue, music, and effects separation, with real feature and Netflix credits behind it, but its Indie pricing isn’t published in a form we could verify, it’s cloud-only, and there’s no affiliate program, so it’s a name to know rather than a link. Gaudio Studio’s dialogue mode has been “coming soon” for months. FL Studio separates four stems but is a DAW for producers. And Adobe: Premiere Pro and Audition have no stem separation as of September 2026. Enhance Speech cleans a voice; it does not separate one. If you cut in Premiere, RX’s plugins are the separator, and Premiere is where you use them.
FAQ
Can I remove the vocal from a licensed track and use the instrumental under my VO?
Not under the stock licenses above. Epidemic, Artlist, Soundstripe, and Musicbed all bar derivative versions, and an instrumental made by separation is one. Use the library’s official instrumental or stem set instead, or license a track that ships one.
Which tool splits dialogue, music, and effects?
RX 12 Advanced (Scene Rebalance) and Moises (Multimedia Tracks) do a true three-way split. Resolve Studio’s Dialogue Separator splits dialogue from background and ambience. RX Standard, LALAL, Logic, and the free tools split music stems or voice-versus-everything.
Does the audio have to upload?
Not with RX, Resolve, Logic, or UVR5, which all run on your machine. LALAL Pro’s desktop app and plugin run locally too. Moises and every other web tool upload.
Is RX Standard or Advanced the right buy?
Standard, unless a dialogue, music, and effects split is a regular deliverable. Music Rebalance, Dialogue Isolate, and Stems View are all in Standard; Scene Rebalance is the Advanced-only module.
Do I own the stems I make?
You own whatever rights you already held in the source, and nothing more. The separation tools grant no rights in the output and make you responsible for it. On your own recordings that’s a non-issue. On licensed music the stem is a derivative you weren’t licensed to make.
In conclusion
Buy RX 12 Standard if you want one local tool that rebalances music and rescues dialogue inside the NLE you already use. Step up to Advanced only for weekly three-way splits. Subscribe to LALAL.AI Pro if you’d rather have a fast web tool with a local mode for the sensitive jobs. Try Moises for a cheap dialogue, music, and effects split on a short piece. And if you own Resolve Studio or Logic, open them first, because you already paid for a separator. Then split only what you own.
And that’s it. Prices are what we read on September 2, 2026, and the license quotes carry their own read dates; the tools move fast and the licenses move slowly, so re-check both before a delivery that depends on them. If you’ve got a stem workflow that survived a client’s legal review, leave a comment. The rest of the AI post-production lane lives on our AI tools for video creators hub.
