Impactsone-shot · 0.28 s
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Rubber Ball Bounce
A hollow rubber ball bouncing to rest on a hard floor, with accelerating, fading boinks
one-shot · 1.59 s · 0 downloads · 0 likes
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Tweak
renders in the CLI · WAVChange parameters to build an exact command. Your agent runs it with sb and gets the WAV.
$ sb get J8D2AFQCCD@1 -o rubber-ball-bounce.wav
How it's made
- Source
- a hollow rubber ball dropped on a hard floor. Each contact is a very short (1–4 ms) soft thump plus a faint floor tick; the harder and faster the impact, the brighter and longer the contact.
- Body
- the air-filled shell rings in a damped fundamental (150–450 Hz depending on ball size) with a weaker inharmonic second mode (≈ 2.4×) and a hollow cavity resonance. The pitch starts about 12 % sharp while the shell is compressed and settles within ~25 ms, which gives the "boink".
- Envelope
- every bounce decays in 40–120 ms. Flight time between bounces shrinks geometrically (interval × restitution), and impact velocity, hence level, brightness and ring, falls with it.
- Variation
- `rng` jitters timing, tuning and strength of every bounce; the ball finally rattles to rest.
| Parameter | Range | Default | Unit | Controls |
|---|---|---|---|---|
| bounciness | 0 – 1 | 0.6 | — | Bounciness |
| height | 0 – 1 | 0.5 | — | Drop height |
| size | 0 – 1 | 0.5 | — | Ball size |
| hollow | 0 – 1 | 0.5 | — | Hollowness |
| hardness | 0 – 1 | 0.5 | — | Floor hardness |
| 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
- r12026-10-24engine 1.0.1use('J8D2AFQCCD@1')