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Surgical Resonance Suppressor · macOS AU / VST3

Remove the harshness.

A real-time resonance suppressor that uses spectral analysis to find the peaks making a track sound harsh, boxy or ringy — and pulls them down without dulling the rest of the tone.

Pay what you want$5+
$
✓ 30-day money-back✓ Signed & notarized✓ Instant download
› STFT spectral detection› Mid / side processing› Delta monitor› Signed & notarized by Apple› macOS 15+
The signature

Find the resonance, not the whole band.

FFT-based analysis identifies peaks that sit above the surrounding spectral energy, so Cleansix acts on the specific frequencies causing the problem instead of carving a static EQ notch. Auto-Threshold calibrates from your own source with one click.

Detect the peak · pull it down.
Under the hood

Surgical resonance control, built to stay transparent.

Real spectral detection and dynamic suppression — not a fixed notch filter.

Detection

  • STFT analysis finds resonant peaks above surrounding energy
  • Focus Bands: Vocal Harsh, Cymbal Ring, Box, Full Range or Custom
  • Auto-Threshold calibrates from your source in one click

Suppression

  • Surgical mode: fast attack and release for precision
  • Organic mode: slower smoothing for transparent correction
  • Mid/side routing — process stereo, mid-only or side-only

Analysis

  • Health Score: before/after quality metric
  • Outbreak Mode: full-spectrum resonance visualization with color-coded bands
  • Lab Report: export a text-based analysis summary

Workflow

  • Delta Monitor — hear only what's being removed
  • Auto-Level automatic gain compensation
  • A/B compare between two settings slots
  • Diagnosis Seed — share settings as a compact hex code
The details

Installs clean. Runs everywhere on macOS.

Formats
AU · VST3 · Standalone
Architecture
Universal Binary — Apple Silicon + Intel
Security
Code-signed & notarized by Apple
Requires
macOS 15.0 or later · 64-bit host
Presets
15 factory presets + save / load
Delivery
Instant .pkg download
Pay what you want

Clean up the
harsh frequencies.

Pay what feels fair — the floor is $5. Backed by a 30-day money-back guarantee.

Choose your price$5+
$