Master at theStem Level
Pick any professional track as your reference. Aurora rips it into 7 stems and transfers those relationships onto your music.
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847 producers trust Aurora
Used by producers who've worked with
Traditional mastering treats your mix as a single signal
Your kick might need a low-end boost. Your bass might need the exact opposite.
In stereo, you can't process one without hitting both. Boost the kick's low end and your bass gets the same treatment.
Every adjustment is a compromise. Brightening your vocals makes your hats harsh. Taming harsh hats dulls your vocals. You fix one thing by breaking another.
That's why your masters never quite match the reference, no matter how many hours you put in.
This is how LANDR, eMastered, and most AI mastering tools work.
What each stem needs:
One setting. Four stems. Two winners, two losers.
Without a reference, every decision is subjective.
How would you know what each stem actually needs?
Let's say you could process each stem separately. Great. Now what?
Does your kick need +2dB at 60Hz or +4dB at 80Hz? Should your vocals be brighter or just louder? Is your bass muddy or is it your kick that's interfering?
Most producers guess. They tweak until it “sounds right” on their monitors.
But “sounds right” in your bedroom doesn't mean it stacks up to the reference. Or that it'll translate to the car, the club, or AirPods.
Without an objective reference, every mastering decision is a gamble.
What if each instrument got its own mastering engineer?
Aurora doesn't process your mix as one signal.
We use phase-accurate AI to split both your track and your reference into 7 stems. Then we match them stem-to-stem.
Your kick matched to their kick. Your vocals matched to their vocals.
No more fixing one thing by breaking another.
7 independent processors for:
7 processors. 7 reference matches. One cohesive master.
One track. Two versions.
You decide.
Put on headphones. You'll hear it immediately.
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Midnight Protocol
What to listen for
The kick punches through. Vocals sit on top, not buried. Bass and synths stay separated.
Match Any Reference in Three Steps
Upload
Drop your mix into Aurora.
We split it into 7 stems automatically using phase-accurate separation. Takes about 30 seconds.
Reference
Pick any commercial track as your reference.
Aurora analyzes each stem in the reference separately. Want your track to hit like Drake? Use a Drake track.
Match
Each of your 7 stems gets matched.
Two-stage EQ. Level matching. Cross-stem balance checks. All automatic. All independent.
This is what prevents harsh highs, broken low end, and overcorrected vocals.
- •Stage 1 corrects based on initial analysis
- •We re-analyze the result
- •Stage 2 refines based on what Stage 1 missed
No stem can deviate more than ±3dB from the median gain—so one bad reference stem can't throw off your whole master.
- •Hi-hats: No EQ below 2kHz
- •Bass: No EQ above 500Hz
- •Vocals: Protected formant regions
This is what makes it work.
Why Producers Are Switching to
Stem-Level Mastering
No More Muddy Low End
When kick and bass get separate processors, they stop fighting. Your 808s hit. Your kick punches through. No more choosing which one gets to exist.
Vocals That Cut Through
Matched to reference vocals, not the whole mix. Present without being harsh. Clear without being buried. Finally.
Reference Matching That Actually Works
"Match to reference" usually means a vague EQ curve slapped on your master bus. Aurora matches each element to its counterpart. Your kick to their kick. Your snare to their snare.
Your Mix. Your Vision.
Traditional tools change your mix to fit a curve. Aurora enhances each element independently. Your creative decisions stay exactly where you put them.
Any Genre. Any Style.
Hip-hop, EDM, pop, rock, lo-fi, orchestral. Stem-level processing works because it's element-specific, not genre-specific.
Studio Grade. Software Price.
Human engineer processing stems: $200-500 per track. Aurora: $16/month, unlimited masters included.
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Verified Results
Alissa R.
Independent Artist
“The masters were better than what I'd been getting from my usual engineer. Mastered my whole EP in an afternoon.”
Is Aurora Right for You?
The Type Beat Producer
You make beats. You need masters that compete on YouTube and streaming. You don't have time to learn mastering, you just need it to sound like the references your buyers expect.
Consistent, reference-matched masters in minutes.
Aurora vs.
Everything Else
| Feature | Aurora | LANDR | eMastered | Human |
|---|---|---|---|---|
| Processing Method | 7 independent stems | 1 signal | 1 signal | 1 signal (usually) |
| Reference Matching | Stem-to-stem | Whole mix | Whole mix | By ear |
| Price | $16/mo (~100 masters) | $9/mo (basic) | $19/mo | $200-500/track (stems) |
| Turnaround | 5 minutes | 5 minutes | 5 minutes | 3-7 days |
| Revisions | Unlimited | Limited | Limited | Usually 1-2 |
| Stem-Specific EQ | Yes | No | No | Sometimes |
| Cross-Stem Balance | Automatic | — | — | Manual |
They apply arbitrary curves to your whole mix.
We match 7 stems to your reference.
It comes down to whether each element gets individual care, or whether everything shares one compromise.