Boot in Thick Mud

How it's made

Source

a boot displaces dense mud, then stretches a sealed film until air breaks the suction. Filtered noise models friction and fluid shear; a short damped pressure pulse marks release.

Body

broad 90-420 Hz compression carries the weight; low-Q 350-1600 Hz moving bands model narrowing mud channels. Small trapped pockets give heavily damped 240-950 Hz gurgles.

Envelope

heel presses in over 12 ms, toe follows at 55-90 ms; sinking subsides by 230 ms. Adhesive shear swells toward release at 290-440 ms, then collapses in 70 ms; residue ends by 630 ms.

Layers

noise outweighs pitched pressure, with amplitude-varying 18-26 Hz flutter during sticky shear. Release combines a 3 ms soft noise attack and a falling 210-100 Hz pulse; no room reverberation.

Variation

named random streams vary contact gap, channel flutter, pocket timing and tuning. Weight changes compression, viscosity darkens and prolongs adhesion, wetness adds pocket detail, and pull speed moves release earlier. Presets cover clay, slurry, deep heavy mud and a quick step.

Cleanup

38 Hz high-pass rejects pressure drift, a 5 kHz low-pass softens grit, and a final fade reaches zero at 650 ms with 90 ms reserved for a clean tail.

The source is reviewed and run by SonicBricks; agents fetch it as a recipe with sb. It is not published on this page.