How does Mud Remover calculate mud in an audio file?

It measures third-octave frequency bands between 150 Hz and 500 Hz and calculates energy excess against anchor bands at 100 Hz and 630 Hz.

What happens if the audio is already balanced?

If the measured low-mid excess is below 1.5 dB, the tool bypasses the cut to prevent thinning out an already clean track.

How do the strength levels differ?

Strength scales the measured cut depth: Gentle caps at −3 dB (×0.5), Medium caps at −5 dB (×0.7), and Strong caps at −8 dB (×0.9).

What does the Q factor control?

The Q factor defines the bandwidth of the parametric cut; lower values broaden the bell filter, while higher values target narrower resonance spikes.

Which output audio formats are supported?

You can export the corrected audio file to MP3, WAV, FLAC, M4A, or OGG Vorbis.

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Mud Remover

Detect and reduce 150–500 Hz low-mid buildup — the stacked-fundamentals mud that turns a mix boxy — with a measured, focus-tuned parametric cut.

Details

What this tool helps you do

Most instruments carry a fundamental somewhere between 150 and 500 Hz, so a dense mix piles up energy there: the classic mud. This tool decodes the track, computes mean Hann-windowed third-octave band levels, and compares every band inside 150–500 Hz against anchor bands below (100 Hz) and above (630 Hz) the region — the excess over that reference is the mud estimate. In auto mode the focus lands on the worst offender; you can also pin it at 180/250/350/450 Hz. The correction is one parametric equalizer section (FFmpeg equalizer with a q-width bell) whose depth follows the measured excess scaled by your strength (gentle ×0.5 capped at −3 dB, medium ×0.7 capped at −5 dB, strong ×0.9 capped at −8 dB), never a guess: if the measured excess is under 1.5 dB the tool refuses to cut and tells you the mix is already clean. After rendering, the focus band is re-measured and the achieved reduction reported. Corrective cutting over boosting — the way mix engineers actually clear mud.

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Mud Remover

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Overview

When to use

How it works

Use cases

Examples

1. De-mudding a Dense Stereo Mix Bus

2. Taming Cardboard Room Resonance on Dialogue

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