Change parameters to build an exact command. Your agent runs it with sb and gets the WAV.
Command
$ sb get 9W6EXX9QY9@1 --preset tight-crush -o paper-crumple.wav
How it's made
Source
a sheet buckles under three hand squeezes. Creases release elastic stress as overlapping 0.4-1.8 ms attacks and 4-24 ms noise decays; larger folds have 12-48 ms damped noise bodies.
Body
broad, low-Q bands at 450-1700 Hz model flexing panels; crease energy spans 1.2-8 kHz. Each fold has a different band centre; upper energy falls as the sheet becomes a compact ball.
Envelope
three irregular pressure humps drive event density and rubbing, with brief partial releases. The default gesture lasts 0.95 s, including a 90 ms release, then a silent safety tail.
Layers
dense granular crease bursts dominate; sparse larger folds add body, with quiet filtered friction and fine fibre crackles underneath. No tonal oscillator, room reflections or reverb.
Variation
seeded timing, decay, spectral centre and strength vary per crease and fold. Length controls hand speed, stiffness controls body and brightness, density controls crease count.
Presets
office sheet, delicate tissue, stiff kraft sheet and a fast tight crush change multiple layers.
Parameters
Parameter
Range
Default
Unit
Controls
length
0.65 – 1.2
0.95
s
Gesture length
stiffness
0 – 1
0.55
—
Paper stiffness
density
0 – 1
0.7
—
Crease density
friction
0 – 1
0.4
—
Surface friction
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.