Change parameters to build an exact command. Your agent runs it with sb and gets the WAV.
Command
$ sb get 1TS8AD51N4@1 --preset nylon-jacket -o zipper-pull.wav
How it's made
Source
a slider interlocks zipper teeth; 0.5 ms attacks and 3-7 ms noise releases make a dry rasp.
Events
tooth rate rises from 36-70 to 100-195 Hz as the hand accelerates over a 0.38-0.84 s pull. Spacing jitters by 6 percent and tooth strength varies by 25 percent, avoiding a perfect buzz.
Body
the slider has damped 1.7, 3.9 and 6.2 kHz modes, with 4-24 ms decays; metal raises their mix and ring time.
Layers
sliding friction brightens from 1.2 to 3.4 kHz; cloth adds a soft 350-1800 Hz swish. A restrained 12 ms contact at the top stop ends the pull, followed by 50 ms of cloth settling.
Envelope
12 ms onset, increasing friction and density, then a 25 ms braking taper; dry mono close Foley.
Variation
seeded timing, grain tuning and levels; presets cover fine nylon, metal, coarse bag and quick.
Parameters
Parameter
Range
Default
Unit
Controls
length
0.38 – 0.84
0.64
s
Pull duration
coarse
0 – 1
0.45
—
Tooth size
metal
0 – 1
0.35
—
Metal contact
cloth
0 – 1
0.35
—
Fabric movement
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.