Plank Drop

How it's made

Source

a long plank lands nearly flat; two broad contacts 7-13 ms apart make a loud air slap. Filtered noise attacks in 0.5 ms and decays in 12-28 ms, with a softer 45 ms floor thump.

Body

free-board bending modes near 115, 317, 621, 1024, 1530 and 2116 Hz scale with size. Low modes decay in 0.45-0.70 s; high modes die in 0.10-0.22 s as wood absorbs treble.

Events

diminishing contacts at roughly 180, 315, 410, 475, 520 and 550 ms model edge rocking. Intervals contract with rebound height; later contacts are softer, shorter and less bass-heavy.

Envelope

immediate slap, overlapping resonant bounces, then a dry settling tail; fade ends at 1.08 s.

Variation

seeded contact jitter, strengths and mode detuning; size changes board tuning, hardness changes contact bandwidth, bounce changes rocking strength and spacing, and ring controls damping.

Presets

heavy oak has low weighty modes; thin pine has bright flex and lively chatter; flat hardwood gives a sharp slap; damped timber gives a dull contact and short, restrained rebounds.

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