Hull Lapping

How it's made

Source

small wavelets press against a hull; pink-noise surges rise for 0.12-0.3 s before a soft slap. Filtered white noise supplies the 18-40 ms contact and a quieter delayed 0.4-0.9 s draining film.

Body

trapped water and air form a broad 145-315 Hz cavity (Q 1.6); wet timber adds heavily damped inharmonic modes at 1, 2.37 and 4.16 times the cavity, with 70-150 ms T60, below the water layer.

Envelope

laps recur at 0.3-1.1 per second with 48 percent timing jitter and varied strength. Each wave brightens toward contact, then darkens as it drains. A quiet stereo ripple bed bridges gaps.

Layers

occasional 7-12 mm trapped bubbles sit under the receding film, not exposed as melodic drops.

Variation

independent seeded streams vary timing, contact position, cavity tuning and wave length. Pace controls wave spacing; body lowers the cavity; wetness extends drainage; brightness opens filters.

Presets

sheltered mooring is sparse and dark; timber dock has closer hollow slaps; broad hull has slower low surges; light wake gives quicker, brighter ripples. No outdoor reverberation is baked in.

Loop

a 12 s excerpt of ongoing water movement; engine crossfade joins the stochastic wave field.

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