AI music mastering

Your AI Music Sounds Flat? Hear the Difference.

AI-generated music has real technical problems: missing bass, stereo artifacts, flat dynamics. MasterForge shows you why, and gives you the tool that fixes it.

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Before

Suno AI Output

Stereo Artifacts High

AI decodes L and R channels independently, creating incoherent artifacts in the stereo difference signal. Side channel energy: -26.7 dB RMS.

Bass Foundation Missing

Latent space compression loses low-frequency temporal detail. The bass is a statistical guess, not a real waveform. Sub: -27.2 dB, Bass: -21.6 dB.

Dynamics Flat

Loss function averaging optimizes toward the mean, compressing micro-dynamics. Crest factor: 4.07, LRA: 1.20 LU, almost no dynamic variation.

Clarity Veiled

Neural codec shimmer in 6-14 kHz masks usable high-frequency content. High end sounds harsh and dull at the same time. LUFS: -14.16.

After

MasterForged

Stereo Artifacts Removed

M/S processing isolated and removed side-channel artifacts. Side energy reduced by 6.1 dB. Stereo image is now coherent and focused. Mid/Side ratio: 16.8 dB.

Bass Foundation Restored

Bass Mono + Multiband Compressor restored the low end to natural levels. Sub: -24.2 dB (+3.0), Bass: -19.3 dB (+2.4). Bass stereo bleed reduced by 6.8 dB.

Dynamics Punchy

Multiband compression + limiting added density and punch without destroying transients. Crest factor: 3.87, LRA: 0.90 LU. Tighter, more musical dynamics.

Clarity Bright

With side artifacts removed, high frequencies could be safely boosted. Result: brighter and cleaner, not harsher. LUFS: -13.36. Noise floor improved by 2.2 dB.

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Try It Free See Pricing

Check Your Own Track, Free

Does your AI track have shimmer, weak bass, or flat dynamics? Upload it and find out in seconds. AI Audio Health Score + Streaming Readiness, no signup required.

AI Health Score

Streaming Readiness

Shimmer & Fog Detection

7-Band Spectrum

Analyze Your Track Free

Simple Pricing

Start Mastering Today

Try MasterForge Starter free, 5 masters included. Subscribe when you're ready for unlimited mastering.

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MasterForge Starter: 5 Free Masters
AI Cleanup: Fix AI Music Artifacts
Music, Podcast, Voice & Video Presets
WAV Export (16 or 24-bit)
Free Audio Analyzer (Unlimited)

Starter

€4.99/mo

Unlimited measured mastering in your browser

MasterForge Starter (Unlimited)
AI Cleanup: Artifact Suppression, De-Esser, Bass Mono
Six Character Presets, Four Content Types
Unlimited Masters
WAV Export (16 or 24-bit)
Batch Mastering (up to 10 tracks)
Free Audio Analyzer

Start Mastering

Pro

€9.99/mo

Everything in Starter, plus Pro Master

All Starter Features Included
Pro Master: Real-Time DSP Engine
Real-Time AI Tools: De-Esser, AI Artifact Suppressor, Vocal Clarity
ToneMap · Multiband Compressor · M/S EQ
Saturation · Limiter · Parametric EQ
Multi-Track Stem Mixer
Platform Preview · 24-bit WAV Export

See all Pro Master features → Go Pro

Credits

€4.99 / 4 credits

Pay per run for Auto-Master, the server-side repair and mastering by the SpectralForge engine. Works on every plan; Pro includes 4 credits a month.

Open Auto-Master

Auto-Master, 3 credits: codec repair, a mastering plan and a finished master.wav at your platform's loudness target.
Analysis + Preparation, 2 credits. Analysis or Preparation alone, 1 credit each.
Packs: 4 for €4.99, 10 for €9.99, 25 for €19.99. Purchased credits never expire.
Starter's automatic mastering runs free in your browser. Auto-Master runs on our servers and repairs the codec damage a browser cannot reach before it masters.

What's new in MasterForge

Feature drops, version notes, what we have shipped lately.

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AUTOMATIC MASTERING

Or let the pipeline do it. Upload and walk away.

Auto-Master repairs the codec artifacts first, writes a mastering plan from the repaired audio, and renders the final file with the same Pro Master engine our subscribers drive by hand. No session, no knobs, no waiting in the browser. An email tells you when it is ready.

What comes back: a release-ready WAV at your platform loudness target, the prepared FLAC, and the written plan behind every decision
Not a preset chain: the restoration is measured before and after, and the plan is written for your track rather than picked off a shelf
Re-run at a different restoration strength and keep the take you prefer. A run that fails before delivering anything refunds its own credits

Run Auto-Master →

3 credits per run · Credit packs from €4.99
Pro subscribers get 4 credits every month

ONE-OFF MASTERING

Don't want to subscribe? Buy a single master.

Send me one track. I'll diagnose every fixable issue, master what's there by hand, and send back a polished file plus a 6-page PDF report. No synthesis, no AI generation, no new material added.

Full source diagnosis: loudness, true peak, spectral balance, stereo correlation, and AI artifacts like shimmer or codec smearing when the source is AI-generated
Hand-mastered with the audio you sent: tilt EQ, bus compression, brickwall limiter, mid-side moves where the diagnostic flags them
You receive: mastered WAV (24-bit / 48 kHz), 6-page PDF report with before/after measurements, and concrete recommendations for your next mix

Browse the service →

€14.99 per track · VAT included
By Petri Korhonen · about 48 h turnaround

The Science Behind The Fix

Why Your AI Music Sounds Wrong

These are real technical problems in how AI models generate audio, not "just how AI sounds." Every issue has a root cause, and MasterForge has a specific tool to fix it.

Architecture Issue

Neural codec quantization loss

What You Hear

Metallic shimmer on cymbals & vocals

MasterForge Fix

AI Artifact Suppressor

Architecture Issue

Latent space low temporal resolution

What You Hear

Thin, weak bass that lacks foundation

MasterForge Fix

Bass Mono + Multiband Compressor

Architecture Issue

Independent channel decoding

What You Hear

Unnatural, incoherent stereo image

MasterForge Fix

M/S Processing

Architecture Issue

Loss function averaging

What You Hear

Flat, lifeless dynamics

MasterForge Fix

Multiband Compressor + Limiter

Architecture Issue

Diffusion over-smoothing

What You Hear

Artificial, veiled vocal quality

MasterForge Fix

Vocal Clarity Engine

Want to understand AI audio in depth?

Our free guide explains the science behind every AI audio artifact, and exactly how to fix each one.

Read the Blog The full article: why AI audio breaks and how each tool fixes it Download PDF Free 12-page reference, keep it offline, share with your team