v1 Audio mastering, built for AI music

Mastered like you paid someone.

Burnish analyzes every track, computes only the corrections that help, skips the ones that hurt, and verifies the result against a release-grade quality gate — before it ever calls itself done.

Coming soon Hear the difference
−14 LUFS, −1.0 dBTP targets 9-check release gate Master in under 3 min
Integrated−14.0 LUFS
True peak−1.0 dBTP
PLR11.4 dB
Width0.92
ANALYZING
air restored · 16k → 20k
20Hz200Hz1k5k16k20k
0
release-grade checks, every master
0
per 4-minute track, GPU-powered
0
spectral profile, measured first
0
streaming-ready WAV + report
01 / THE PROBLEM

Why AI music sounds like AI music.

The composition got good. The audio engineering didn't. Every AI export ships with the same fingerprint — and you can feel it even when you can't name it.

SPECTRAL ENERGY · RAW AI EXPORT 20Hz ——————————————————— 20kHz
200–400 Hz · MUDEnergy pile-up that buries vocals and blurs the low end on real systems.
2–5 kHz · HARSHPushed presence that turns fatiguing at mastering level.
~16 kHz · CLIFFThe "air" is simply gone. You can't EQ in what isn't there.
measured energy problem region hard high-frequency cutoff
200–400 Hz

The mud

AI models pile energy where laptops sound thick. On earbuds and in cars it becomes a wall that buries everything.

2–5 kHz

The harshness

Upper-mid presence pushed to feel exciting on first listen — and exhausting thirty seconds into good headphones.

14–16 kHz

The ceiling

Trained on compressed data, the models hard-cut the top. The shimmer that makes a mix breathe is missing.

DYNAMICS

The flatline

No distance between an intimate verse and a chorus that should lift. A limiter on a flat source just gets louder.

02 / HOW IT WORKS

Three steps. Nine checks behind them.

STEP 01

Upload your bounce

WAV or MP3 — full mix or stems, straight out of Suno, Udio, or your DAW. No prep, no chain to build.

STEP 02

Burnish measures, then masters

A full forensic pass drives an adaptive pipeline. It moves only the parameters that are out of range — and proves it didn't make anything worse.

STEP 03

Download the master

A 24-bit, streaming-ready WAV plus a full report that shows every measurement, every decision, and every check it passed.

03 / THE QUALITY GATE

A master that fails doesn't ship.

Every Burnish master runs nine release-grade checks before the file is written. Fail a critical one and the pipeline reverts, backs off, and tries a lighter touch. The master doesn't exist until it passes.

Engineers will respect it. Everyone else just feels protected.

No clipping slips through. No over-limited transients. No stereo trick that collapses to mono on a phone speaker. The numbers are the contract.

True peak ceiling ≤ −1.0 dBTP, 4× oversampled
−1.0 dB
Zero clipping no samples at full scale
0 smpl
Dynamic range preserved ≥ 60% of source retained
82%
Crest factor intact ≤ 4 dB loss · transients alive
−1.8 dB
PLR in healthy band 6–16 dB peak-to-loudness
11.4 dB
Mono-safe correlation drop < 0.15
0.04
Spectral balance held no band shifted > 3 dB
1.9 dB
Stereo width stable change < 0.15
0.07
Loudness on target −14 LUFS integrated
−14.0
04 / MASTERING INTENT

Creative direction. None of the knobs.

Tell Burnish what the track is for, not what a compressor ratio should be. Same source, three intents — hear the curve move as you switch.

Expose[ 01 ]

Maximum clarity. Mud cut harder, presence lifted, air extended further. The vocal steps forward and the listener leans in.

Best for intimate hip-hop, singer-songwriter, lead-vocal trip-hop
BalancedDEFAULT

Sensible corrections across the board. Nothing pushed into territory that feels wrong on any one genre. Most tracks live here.

Best for almost everything — start here
Atmosphere[ 03 ]

Preserve warmth. Gentler mud cleanup, smaller presence boost, character kept thick and enveloping. The density is the point.

Best for ambient, lo-fi, drone, dense productions
TARGET RESPONSE · BALANCEDrelative dB
raw source Burnish target
05 / THE REPORT

Nobody else shows their work.

Every master ships with a full report: before and after for every metric, which stages fired and why, which were skipped, and exactly which checks it passed.

brian_200_master_report.json
87
GRADE A−
Mastering score
Loudness · True Peak · Dynamics
Spectral · Vocal Clarity · Translation
Integrated loudness
−14.0 LUFS ▲ 6.2
True peak
−1.0 dBTP ▼ 2.1
Crest factor
12.6 dB ▲ 0.3
Stereo correlation
+0.31 safe
Sub
−0.4
Low-mid
−2.1
Presence
+1.6
Air
+restored

Every stage, with a reason

See which corrections fired, by how much, and which were skipped because the source was already in range.

Forensic flags with timestamps

Specific moments where a problem was detected — and whether it was auto-fixed or flagged for you.

A score that tells the truth

If vocal clarity is low because the bass-to-presence gap is 15 dB, you'll know — the problem is the source, not the master.

06 / BEFORE & AFTER

The before sounds like an app. The after sounds like a record.

Same source file, mastered by Burnish. Hit play, then toggle. Listen for the air on top, the vocal stepping out of the mud, and the low end finally holding still.

Demo audio drops in here once your files are added to /audio — players are wired and waiting.

07 / PRICING

Priced per track. Or unlimited when you ship a lot.

Free
TBD

Try Burnish on your own tracks. Same measurement, same report, no card.

Full 9-check quality gate
16-bit WAV + report
All three intents
See pricing
Studio
TBD/ month

For artists and labels running a release schedule and batches of tracks.

5 concurrent jobs · priority queue
Batch upload · multi-source stems
Forensic issue reports
See pricing
COMING SOON

Hear what your mix has been hiding.

Burnish is in private beta. The door opens soon. In the meantime, read the method or look at the pricing shape — both are public.