Stones Knock

How it's made

Source

two hand-held river stones collide once; a 0.2 ms attack and 1.4–3.6 ms noise contact.

Body

two unequal solid bodies carry dense inharmonic modes, about 0.7–9 kHz, not an air cavity. Lower modes have 0.12–0.26 s T60; upper modes die in 0.025–0.08 s as grip and internal loss absorb them.

Layers

a direct hard click, two independently tuned modal banks, and a faint 12–26 ms contact scuff.

Envelope

energy peaks immediately, becomes darker within 40 ms and leaves only a tiny midrange ring. A smooth safety fade reaches zero at 0.48 s; the full dry asset is bounded at 0.6 s.

Variation

seeded tuning varies each body by 2%; size shifts both banks, grip damps their decay, hardness changes contact bandwidth, and scuff controls the brief surface friction.

Presets

rounded pair, small bright pebbles, weightier palm stones, and a tightly gripped muted pair.

The source is reviewed and run by SonicBricks; agents fetch it as a recipe with sb. It is not published on this page.