Sheet Stack Tap

How it's made

Source

paper edges meet a desk twice, 270-390 ms apart. Filtered noise with 3-6 ms attacks models flat, compliant contact rather than a hard click; five offset leaf contacts spread each slap.

Body

compressed paper has broad 550-2400 Hz colour; the desk adds a short 170-620 Hz thud. Low-Q noise bands supply heavily damped body without a pitched wooden knock or ringing resonance.

Envelope

each slap lasts 55-105 ms. Leaf settling follows for 100-210 ms, with a falling cutoff; a quieter 170-260 ms shuffle follows the second tap. The entire gesture finishes near 0.8 s.

Layers

low desk contact, midrange flat slap, staggered leaf edges and a softly pulsed friction tail. Dry, nearly mono perspective; no room reverb and a steep high-frequency rolloff above 6 kHz.

Variation

seeded timing, gain and filter variation per contact. Stack thickness changes body and contact spread; crispness changes spectral balance; looseness changes leaf lag and shuffle length.

Presets

thin sheets are light and quick, a thick dossier is low and broad, loose pages shuffle longer, and gentle alignment uses rounded contacts and reduced edge detail. Every variant retains two taps.

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