Change parameters to build an exact command. Your agent runs it with sb and gets the WAV.
Command
$ sb get N2EE55W878@1 -o jacket-zipper-pull.wav
How it's made
Source
a slider joins jacket zipper teeth; irregular 3–7 ms noise contacts accelerate from 65 to 155 teeth/s, scaled by tooth spacing, under a continuous friction rasp rather than a pitched motor.
Body
broad contact bands rise from 1.1–2.3 kHz to 2.6–5.1 kHz with pull velocity; fabric drag adds damped 180–1600 Hz noise. A stop excites small 2.9 and 4.7 kHz metal modes with 18–28 ms decay.
Envelope
12 ms engagement, accelerating pull over 0.48–0.84 s, then a 14 ms braking release; the stop clicks 8 ms later and fabric settles for 65 ms. Final silence is explicitly bounded.
Layers
tooth contacts dominate the friction bed; cloth remains subordinate and the end click is brief, dry and quieter than the main pull. No room reverberation or sustained metallic ringing.
Variation
seeded tooth timing varies by 9%, strength by 25% and contact bands by 12%; pull time, tooth coarseness, hardness and fabric amount distinguish nylon, fine, metal and heavy jacket presets.
Parameters
Parameter
Range
Default
Unit
Controls
pull
0.48 – 0.84
0.7
s
Pull time
coarse
0 – 1
0.45
—
Tooth coarseness
hardness
0 – 1
0.5
—
Tooth hardness
fabric
0 – 1
0.45
—
Fabric drag
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.