Stonetexture · 15 s
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Concrete Slab Drop
A concrete slab lands with a broad flat slam, low ground boom, cracking grit and settling chips.
one-shot · 1.94 s · 0 downloads · 0 likes
0.00 / 1.94 sSlab on packed earth
Tweak
renders in the CLI · WAVChange parameters to build an exact command. Your agent runs it with sb and gets the WAV.
$ sb get 24QDFXT22E@1 --preset packed-earth -o concrete-slab-drop.wav
How it's made
- Source
- a concrete slab lands flat; distributed contacts spread a 3 ms onset over 24 ms, producing a broad 120 Hz-5 kHz slam rather than a point striker or a pitched falling sweep.
- Body
- inharmonic bending modes at 64, 103, 169, 267, 431 and 697 Hz scale with slab size; T60 falls from 0.75 s to 0.16 s. Broad 45-220 Hz pressure noise supplies ground-coupled boom.
- Fracture
- staggered 1-3 kHz noise cracks in the first 90 ms and short mineral modes on chips.
- Envelope
- 3 ms contact rise, 0.2 s main slam, 0.5-1.1 s boom; loose grit settles by 1.8 s. High frequencies decay first; a finishing fade reaches zero at 1.94 s with no baked-in reverb.
- Events
- 16 uneven chip contacts between 0.08 and 1.55 s lose strength as debris settles.
- Variation
- seeded contact timing, chip pan and mode detuning; mass lowers modal frequencies, hardness opens contact bandwidth, fracture adds cracks/grit, and tilt delays a secondary slap.
| Parameter | Range | Default | Unit | Controls |
|---|---|---|---|---|
| mass | 0 – 1 | 0.65 | — | Slab mass |
| hardness | 0 – 1 | 0.65 | — | Ground hardness |
| fracture | 0 – 1 | 0.55 | — | Edge fracture |
| tilt | 0 – 1 | 0.15 | — | Landing tilt |
| 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.
Revision history1
- r12026-10-25engine 1.0.1use('24QDFXT22E@1')