Plank Snap

How it's made

Source

a wooden board bent until the fibres on its tension side fail. Stress builds as stick-slip fibre creaks (150–700 Hz pulses, 80–140 ms), then the break releases stored strain energy in a ~1 ms broadband crack.

Body

the two halves ring as damped free-free wood bars (modes ≈ 1 : 2.6 : 4.6 : 7, 40–200 ms) plus a board-flex thump near 110–220 Hz; a thin bright band at 2–6 kHz carries the splintering.

Fibres

after the crack, bundles of fibres tear one by one: a sparse train of tiny 2–7 kHz ticks that thins out over 0.1–0.3 s, under a band-limited fibrous rasp (1.2–3.5 kHz) with a ragged random envelope.

Envelope

creak 0.12 s rising in level, crack at the creak's end, ring and tearing fade out by ~0.5 s; the output is closed by an explicit fade-out.

Variation

`rng` jitters creak pitch and pulse timing, mode tuning and the fibre tick pattern; `thickness` lowers body modes and lengthens the ring, `dryness` brightens the crack and fibres, `splinter` sets the density of tearing ticks, `creak` the length of the pre-break strain sound.

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