Pulley Rope Squeak

Rope running through an old wooden pulley, with cyclic axle squeaks, fibrous drag and woody creaks.

loop · 4.00 s · 0 downloads · 0 likes

0.00 / 4.00 sMP3 preview · Dry working pulley

Preset

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Free for commercial use. No attribution needed.

Tweak

renders in the CLI · WAV

Change parameters to build an exact command. Your agent runs it with sb and gets the WAV.

Command

$ sb get W6VNJAG9QT@1 --preset dry-working -o pulley-rope-squeak.wav

Source: rope fibres rubbing a wooden sheave and a dry axle undergoing stick-slip under cyclic load. Filtered noise models fibre drag; three moving partials model the axle's friction-locked vibration.
Body: broad, damped wooden resonances at 230, 590 and 1040 Hz colour the rope contact; no room tail.
Envelope: 2-6 wheel rotations per 4 s. Each turn has a broad rope-drag swell and a narrower axle squeak, with a weaker secondary creak half a turn later. Smooth pressure curves avoid impulsive attacks.
Modulation: axle pitch bends with load, with 17-29 Hz micro-slip flutter and slow seeded wander; friction bandwidth opens under pressure. Fibrous grains are rounded by 3.4 kHz low-pass filtering.
Variation: wheel size sets pitch/body scale, load sets squeak prominence, roughness sets fibre grains; presets cover a slow heavy hoist, dry working pulley, brisk light pull and soft thick rope.
Loop: rotation and pressure are periodic over 4 s; independent seeded noise continues under the seam.

Parameters
Parameter	Range	Default	Unit	Controls
turns	2 – 6	4	—	Turns per four seconds
size	0 – 1	0.55	—	Wheel size
load	0 – 1	0.6	—	Rope tension
roughness	0 – 1	0.5	—	Fibre roughness
seed	int	1	—	Variation, reproducible

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

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