de-artifact

Real-time VST3 / CLAP plug-in. Removes RVQ ghosting, codec residue, and HF aliasing from AI-generated music — Suno, Udio, Stable Audio, MusicGen, Riffusion. HPSS analysis × learned UNet mask.

$179$129one-time Launch price ends Jul 31 Use as API →

FormatsVST3 · CLAP · Standalone
Latency500 ms / 186 ms (ECO)
Presets7 factory
Min. specmacOS 11 · M1 · 8 GB

de-artifact plug-in interface — HPSS spectrum view with 4 emphasis EQ handles, attenuation parameters, monitor toggles, and de-esser drawer

7 factory presets, one click

Each preset is tuned on a real corpus of separated stems and AI-generated tracks. Pick by source type — fine-tune later with the 8 attenuation sliders if needed.

Preset	Use it for	Character
HPSS focus q=0.6 · 12 dB default	Starting point for any source. Balanced cut.	Listener-validated baseline
HPSS focus q=0.6 · 20 dB	Fragile material — softer transitions	Smoother knee than 12 dB
HPSS harmonic focus	Vocals, piano, melody — preserve harmonics, clean percussive only	−7.7 dB GR, RMS unchanged
HPSS balanced	Mid-tier, between conservative and AI-aggressive	Light overall touch
Lossy conservative	MP3 / Opus 128 kbps — codec residual hash	Most subtle — barely audible
AI aggressive	Suno / Udio / Stable Audio full mix or stem	HPSS kernel 47 — broadband cleanup
AI vocal stem	htdemucs / Spleeter separated vocal stems	Strongest preset — kernel 15, harmonic boost 1.5

Built for production work, not demos

Two latency modes

Standard 500 ms for mixing — biggest RT margin, highest quality. ECO 186 ms for tracking and live monitoring. Toggle in the corner of the spectrum view.

4-band emphasis EQ

Drag spectrum handles to tell the model where to focus. The boost is fed only to the model — listener audio is auto-inverse-EQ'd, so tone is preserved.

Three monitor toggles

Bypass for A/B with PDC preserved. Diff to hear exactly what's being subtracted. De-ess solo to isolate the sibilance side-chain.

Sidechain de-esser

Built-in HPF / BPF de-esser applied after the model's pass — clean up residual sibilance without re-tuning the main attenuation.

3 spectral algorithms

SoftSub (default, power-domain), SpecSub (linear, more aggressive), Wiener (SNR-based for noisy sources). One click to compare.

Standalone app included

No DAW required. Route through any Core Audio interface — system SR / period size configurable. Same engine as the plug-in.

How it works

de-artifact runs three stages in series. The audio path stays the model's domain until the very end — clean residual subtraction with no manual EQ tricks.

# Per-frame, real-time
audio (44.1k) → STFT → HPSS (median filter) ┬─ H_mag → ArtifactUNet → mask_H → soft_sub
                                       └─ P_mag → ArtifactUNet → mask_P → soft_sub
                                                                       ↓
                              clean = H_clean + P_clean → ISTFT → output

HPSS (harmonic-percussive separation) splits the spectrum into its tonal and transient components. Each is masked independently by ArtifactUNet, a 4.2M-parameter forensic network trained from scratch on AI-generated music. The masks drive adaptive spectral subtraction — energy below the noise floor is removed, music above it is preserved.

System requirements

de-artifact runs ArtifactUNet (4.2M params) on the audio thread alongside HPSS analysis. Standard mode keeps a generous RT margin even on entry-level Apple Silicon; ECO mode is tighter and prefers 16 GB for stereo work.

Requirement	Minimum	Recommended
CPU	Apple M1 / Intel Core i5 (4-core, 2.0 GHz+)	Apple M2 or later / Intel Core i7
RAM	8 GB (Standard mode only; ECO may dropout on stereo)	16 GB+ (ECO + multi-instance comfortable)
Disk space	~80 MB (plug-in + standalone + ONNX models)	—
macOS	11 (Big Sur)	13 (Ventura) or later
Audio buffer	≥ 256 samples (Standard) / ≥ 512 samples (ECO)	1024 samples for tracking
Sample rate	Any — rubato resampler 8 k–384 k. Internal model runs at 44.1 kHz.
Hosts	VST3: Live, Reaper, Bitwig, Studio One · CLAP: Reaper, Bitwig · Standalone (Core Audio)
Logic / Pro Tools	Beta is ad-hoc signed — not AU / AAX validated. Full AU + AAX in v0.2.
Windows / Linux	Roadmap. macOS only at launch.

FAQ

Why does the first ~1 second go silent on a freeze / bounce?: Standard mode reports 500 ms latency for host PDC. During Live's freeze the host signals offline mid-stream, and the worker thread re-primes for one chunk. Output is correct from the first audible frame onward.
Diff mode sounds different on each play. Bug?: Phase of the residual depends on chunk-grid alignment — same SR + same transport start gives bit-identical phase. Spectrum and RMS are stable across runs; only the per-sample residual rotates.
The result sounds dull. What knob fixes that?: Lower Aggressiveness, or switch to HPSS harmonic focus (preserves full bandwidth and only cleans the percussive split). Pulling the high-shelf emphasis to −6 dB also tells the model to leave the top end alone.
I'm getting dropouts on an M1 8 GB.: Use Standard mode (ECO is tighter). Reduce HPSS kernel from 47 → 31 → 15. Trim other plug-ins on the chain — total plug-in latency feeds back into the host's buffer math.
Is there a free trial?: The current beta is invite-only. v1.0 will ship with a 14-day full-feature trial.

Try free, then download

14-day full-feature trial — no card required. Email us, get a license key in your inbox, and download the plug-in once it's live.

Try free for 14 days

Email license key

One trial per email per plug-in. The license key arrives via email and works on a single machine.

Download for macOS

Coming soon

Beta builds ship over email while we finalize Developer ID notarization. Submit a trial above and you'll be on the early-access list.

de-artifact-X.Y.Z.pkg Coming soon

macOS — Apple Silicon + Intel · Windows / Linux — roadmap