Studio One / Fender Studio Pro Stem Separation in 2026: AI Stem Splitter, Native Stem Separation & iZotope RX 12 Compared

Studio One has had native AI-Powered Stem Separation since Studio One Pro 7 (October 2024) — a real advantage over Pro Tools, which still has nothing built-in. The DAW also rebranded to Fender Studio Pro in January 2026 after the Fender/PreSonus alignment, and the current shipping version is Fender Studio Pro 8. The stem-separation feature carries forward; everything below works identically whether your install says "Studio One Pro 7" or "Fender Studio Pro 8".

The short answer:

• For the cleanest possible stems on modern music → external AI (StemSplit) at $0.10/min — drag the WAVs straight onto a new track in your session.
• For the fastest in-DAW workflow → native AI-Powered Stem Separation built into Studio One Pro 7 / Fender Studio Pro 8 (vocals, drums, bass, other). Free with the DAW.
• For the pro repair workflow → iZotope RX 12 Spectral Editor via ARA 2 ($399 RX Standard / $1,399 Advanced) — Studio One is one of only two DAWs that supports this (Logic Pro 10.7+ is the other). For rebalancing, use Music Rebalance as a standard VST3 insert or RX standalone via RX Connect.
• For free workarounds → Phase cancellation, EQ. Limited. Honest answer: not competitive with AI on modern music.

This guide walks through every method honestly and tells you which to use when.

Try StemSplit on your Studio One session →

Method 1: StemSplit (External AI, Best Quality, Drag-and-Drop into Track)

This is the cleanest, fastest, cheapest option. Works on every Studio One / Fender Studio Pro edition. Browser-based; you bring the separated WAVs back to the session as audio events on new tracks.

Workflow

1. Bounce the source from Studio One — Track → Export Mixdown (or Event → Bounce to New File) → WAV at session sample rate. Or upload the source file directly without bouncing.
2. Upload to StemSplit → choose 4-stem (vocals, drums, bass, other) or 2-stem (vocals + instrumental).
3. Download the stems as WAV files.
4. Drag the WAVs onto new tracks in Studio One — drop directly into the arrangement at the original timestamp. Group them into a Folder Track for clean session organization.

The model is htdemucs FT — ~8.4 dB SDR in published benchmarks. Cleaner than Studio One's native AI Stem Separation on dense modern productions, and well above any AudioSuite-style workaround.

When to use this method

• You need release-quality stems for music mixes, sample packs, references, or remix work
• You're on a Studio One/Fender Studio Pro edition without the native Stem Separation feature, or older than Studio One Pro 7
• You want the absolute peak quality the model space offers
• One-off jobs where you don't want to bounce the source through the DAW first
• You're working on iPad/laptop without your full plugin chain

Pricing reality check

$0.10/minute. A 3-minute song = $0.30 in credits. Free with a 30-second preview before you pay. No subscription, no DAW upgrade required.

Studio One / Fender Studio Pro-specific tips

• Match sample rate to your session before separating to avoid resampling artifacts.
• Use Folder Tracks — drop the four returned stems into a Folder Track for grouped mute/solo and a single composite fader.
• Bus the stems through a Stem Bus — route all four to a single Group/Bus track for parallel processing or master-bus FX printed to the stems.
• Use Listen Bus / Cue Mixer to reference the original bounce against the recombined stems while you mix.

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Method 2: Native AI-Powered Stem Separation (Studio One Pro 7 / Fender Studio Pro 8)

PreSonus added native AI stem separation in Studio One Pro 7 (October 2024); it carries forward into Fender Studio Pro 8 unchanged. Free with the DAW. Four stems: Vocals, Drums, Bass, Other.

Workflow

1. Drop the source audio onto a track in your session
2. Right-click the audio event → Stem Separation (or Audio menu → Stem Separation)
3. Studio One processes the file locally and creates four new tracks — Vocals, Drums, Bass, Other — with a Folder Track grouping them
4. The original event is muted automatically; you can solo, mix, or process the stems individually

Edition gating (2026)

Note: with the Studio One Pro 7 licensing change (continued in Fender Studio Pro 8), Artist and Prime tiers were retired in favor of a single flagship SKU. If you're on the modern flagship — ~$199.99 perpetual for Fender Studio Pro, or the Pro+ subscription (~$179.99/year, ~$19.99/month) — native Stem Separation is included. Legacy Studio One Artist licenses do not include the feature.

When the native feature is the right answer

• You want to stay entirely inside the DAW with no upload step
• You don't need release-grade quality (drafts, references, quick edits, samples for sketching)
• You're working offline / no internet at the studio
• Privacy-sensitive material that can't leave your machine
• You want stems automatically grouped on the timeline at the original position

Honest limitations vs StemSplit

• Quality is good but not class-leading — htdemucs FT (StemSplit) outperforms the native engine on dense modern productions in side-by-side listening
• Locked to four stems (vocals, drums, bass, other) — no piano/guitar/2-stem modes
• Processing time scales with track length and CPU
• Requires you to bounce the source to audio first (no real-time on a virtual instrument bus)

For drafts and sketches, native is genuinely fast and convenient. For final-grade stems on modern music, StemSplit still wins.

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Method 3: iZotope RX 12 Spectral Editor via ARA 2 (Studio One's Pro Tools Advantage)

This is where Studio One pulls ahead of Pro Tools. iZotope RX 12 Spectral Editor runs as a VST3 ARA plug-in in Studio One Pro 7 and Fender Studio Pro 8 — officially listed in iZotope's RX 12 spec sheet (the only other supported host is Logic Pro 10.7+ via AU ARA). Pro Tools doesn't get this at all.

What ARA 2 buys you

ARA 2 means RX Spectral Editor sees the entire audio event on the timeline non-destructively. You paint out clicks, mouth noise, hum, broadband noise, or surgical artifacts directly on the spectrogram inside Studio One — no bouncing back and forth, no Direct Offline Processing dialogs, no re-renders. Edits commit on close and stay editable on re-open.

Workflow

1. Insert RX 12 Monitor as a VST3 plug-in on the track you want to repair
2. Right-click the audio event → Edit with RX 12 Spectral Editor (ARA)
3. RX opens with the event waveform/spectrogram loaded. Paint, repair, de-noise, de-click as needed.
4. Close RX — edits commit non-destructively to the event in Studio One. Re-open at any time to revisit.

This is dramatically faster than the offline RX Connect workflow used in Cubase, Pro Tools, or any AAX-only DAW.

Cost

Music Rebalance and Scene Rebalance (the rebalance modules)

Important: iZotope's published RX 12 ARA host list only includes Spectral Editor for Studio One — not Music Rebalance or Scene Rebalance. In practice that means:

• Music Rebalance in Studio One: run as a regular VST3 plug-in insert on the track. Adjust the four stem sliders (vocals, drums, bass, other) at -∞ for what you want to remove, 0 dB for what you keep. Render via Event → Bounce.
• Scene Rebalance (RX 12 Advanced, dialogue/music/effects for post): same — VST3 insert or standalone via RX Connect.
• RX Connect round-trip is also available (Track → Bounce, send to RX standalone, return processed audio).

When this is the right combo

• You already own iZotope RX (most pro Studio One mix engineers do)
• You need surgical spectral repair (mouth de-click, breath de-ess, hum removal, isolated noise events) — this is where ARA Spectral Editor in Studio One genuinely beats Pro Tools workflow
• You're doing dialogue/voiceover/podcast mixing in Studio One
• You want non-destructive repair that survives session reopens

Honest limitations vs StemSplit

• RX 12 Music Rebalance is solid but htdemucs FT (StemSplit) still produces marginally cleaner stems on modern music
• The $399 entry for RX Standard is hard to justify if separation is your only need
• Music Rebalance is fixed at 4 stems — same as the native Studio One feature

For most users, StemSplit (peak quality) + native Studio One Stem Separation (in-DAW convenience) covers 95% of needs. RX makes sense when you also need its broader repair toolkit.

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Method 4: Manual Workarounds (Free, Limited)

If you don't have native Stem Separation (older edition, legacy Artist license) and don't want external tools, Studio One's stock plug-ins can do limited "vocal reduction." Honest assessment: not competitive with AI on modern music.

Phase cancellation

1. Duplicate the stereo audio onto a new track
2. On the duplicate, split to dual mono (Audio → Convert to Mono Tracks) and invert one side
3. Sum to mono — centred content cancels (vocal, kick, bass)
4. The result is everything not in the centre of the stereo field

Why it fails on modern music: vocals are wide (reverb, doubling, stereo widening), so they don't fully cancel. Bass and kick are centred — they cancel along with the vocal. You get a leaky, bass-depleted mix.

Spectral notch with Pro EQ3

1. Insert Pro EQ3 on the source track
2. Cut a wide notch at 1–4 kHz (vocal presence) by -6 to -12 dB
3. The vocal becomes quieter; the rest of the mix gets hollow

For surgical spectral work, use Method 3 (RX Spectral Editor ARA) — it's the right tool. Stock EQ alone won't get clean results.

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Method Comparison

For most Studio One / Fender Studio Pro mixers, the right pairing is:

• StemSplit for peak quality on release-bound stems
• Native Stem Separation for everything in-session that doesn't need to be class-leading
• RX 12 Spectral Editor (ARA) for surgical repair — Studio One's killer Pro Tools advantage

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Studio One / Fender Studio Pro-Specific Tips

Group separated stems in a Folder Track. Whether the stems came from the native feature, StemSplit, or RX, drop them into a Folder Track so mute/solo/level moves stay logically grouped.

Match sample rate before separating. Most music sessions are 44.1 kHz or 48 kHz. Mismatched rates introduce resampling artifacts. Bounce at session rate, separate, import.

Use the Listen Bus / Cue Mix to reference the original mix against the recombined stems while you tweak — Studio One's Cue Mixer is one of the best implementations of this in any DAW.

Bounce flat before separating. Disable Event FX, clip gain, and channel inserts on the source bounce — pre-bounce processing leaks into the AI's view of the mix and produces messier stems.

Use Track Layers for stem versions. Studio One's Layers feature lets you keep multiple takes/versions of a stem on the same track for A/B comparison — handy when you've got native, StemSplit, and RX versions of the same separation to choose between.

Stack Folder Tracks for hierarchical mixing. Stems folder → Drums sub-folder (with kick/snare elements) → individual elements. Studio One's nested folder behaviour makes complex stem-based mixing tractable.

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Frequently Asked Questions

Does Studio One have built-in AI stem separation?

Yes — since Studio One Pro 7 (October 2024). The feature is called AI-Powered Stem Separation and produces four stems: vocals, drums, bass, and other. It carries forward unchanged into Fender Studio Pro 8 (the January 2026 rebrand). Right-click an audio event and choose Stem Separation. The native engine is a strong default, though external tools like StemSplit (htdemucs FT) still produce cleaner results on dense modern productions.

What's the best stem splitter for Studio One / Fender Studio Pro in 2026?

For peak quality, StemSplit produces the cleanest stems — htdemucs FT outperforms both the native Studio One engine and iZotope RX 12 Music Rebalance on modern productions, at $0.10/min. For free in-DAW convenience, the native Stem Separation (Studio One Pro 7+ / Fender Studio Pro 8) is a great default. For surgical repair workflows, iZotope RX 12 Spectral Editor via ARA 2 is the killer pro tool — Studio One is one of only two DAWs that supports it.

What changed when Studio One became Fender Studio Pro?

In January 2026, PreSonus rebranded Studio One to Fender Studio Pro following the Fender/PreSonus alignment. The codebase and feature set continued — version numbering moved to Fender Studio Pro 8. Native Stem Separation, ARA 2, Melodyne integration, the Cue Mixer, Folder Tracks, and the entire pro feature set carry forward unchanged. Existing Studio One Pro 7 licenses continue to work; new buyers get Fender Studio Pro 8.

Does Studio One support ARA 2?

Yes — fully. Studio One has been an ARA / ARA 2 leader since the early Melodyne days. In 2026 the supported ARA 2 plug-ins commonly used in Studio One include Celemony Melodyne, Steinberg SpectraLayers, iZotope RX 12 Spectral Editor, Synchro Arts Vocalign / RePitch / Revoice Pro, Antares Auto-Tune Pro X, and Dreamtonics Synthesizer V. This is a meaningful advantage over Pro Tools (no ARA 2 in 2026).

Can I use iZotope RX Spectral Editor as ARA in Studio One?

Yes. iZotope's RX 12 spec sheet officially lists VST3 ARA support for Studio One 7 / Fender Studio Pro 8. Insert RX 12 Monitor as a VST3 plug-in on the track, then right-click the event → Edit with RX 12 Spectral Editor (ARA). Edits commit non-destructively. Note: Music Rebalance and Scene Rebalance are not ARA in Studio One — use them as VST3 inserts or via RX standalone.

How much does Fender Studio Pro 8 cost?

About $199.99 for the perpetual license, or the Pro+ subscription at roughly $179.99/year or $19.99/month (subscription includes ongoing updates and the cloud features). Pricing varies by region and promotion — check fender.com or major retailers at purchase time. Native AI Stem Separation is included with the flagship license at all tiers above the legacy Artist edition, which has been retired.

Is Studio One's native Stem Separation as good as StemSplit?

Honest answer: it's good, but not class-leading. The native engine is fast, in-DAW, and free with your license — perfect for drafts, sketches, and reference work. For release-grade stems on modern music, StemSplit (htdemucs FT) consistently produces cleaner separation with less bleed and fewer artifacts. Use the native feature for speed, StemSplit for quality.

What sample rate should I bounce from Studio One for stem separation?

Match your session rate. 44.1 kHz is the music standard; 48 kHz for video/post; 96 kHz for high-end music sessions. Don't upsample before separation — it doesn't add information. Both StemSplit and the native Studio One feature handle 44.1 / 48 / 88.2 / 96 kHz correctly.

Will Studio One add real-time stem separation?

The native AI-Powered Stem Separation is offline by design — it processes a source clip and creates new tracks. As of Fender Studio Pro 8 (2026) there's no real-time stem separation insert. iZotope RX 12 added real-time AAX Music Rebalance for Pro Tools in April 2026, but no real-time VST3 equivalent has appeared for Studio One yet.

Does Studio One run native stem separation locally or in the cloud?

Locally. The native engine processes on your CPU with no cloud dependency — that's why it works offline and respects privacy-sensitive material. Processing time scales with track length and CPU. StemSplit, by contrast, is cloud-based; faster on long files but requires an internet connection.

Can I batch process multiple tracks at once with native Stem Separation?

Yes. Select multiple audio events in the arrangement, right-click → Stem Separation. Studio One processes them sequentially and creates Folder Tracks for each set of stems. For very large batches, StemSplit's parallel cloud processing is typically faster wall-clock.

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Get Production-Grade Stems for Your Studio One Session

Upload any track to StemSplit and drag clean WAV stems straight onto new tracks in your Studio One / Fender Studio Pro session.

• Vocals, drums, bass, and other — as separate WAV files
• Cleaner than the native AI Stem Separation on dense modern productions
• Works on every Studio One Pro / Fender Studio Pro edition (and every legacy version)
• $0.10/min — about $0.30 for a typical song
• Free 30-second preview before you pay
• No plug-in install, no upgrade required

Separate Stems Now →