Page Flip Whoosh

How it's made

Source

a sheet of paper swung through air. Turbulent air over the moving edge is pink noise; the sheet itself adds a papery flutter, and the page landing flat gives a short snap.

Air swish

pink noise high-passed at 150 Hz through a band-pass (Q ≈ 0.9) whose centre rises from 500 Hz to 1.5–4.5 kHz at about 45 % of the length and falls away, as the page accelerates then slows.

Flutter

band-limited noise (2.5–7 kHz) amplitude-modulated by a drifting 18–34 Hz oscillation plus a sparse train of 1–4 ms rustle grains; strongest around the swish peak, which gives the dry, papery texture.

Snap

at about 85 % of the length the page lands: a 4 ms noise burst around 3 kHz and a damped 280 Hz thump of the paper against the stack (T60 ≈ 40 ms), followed by a short low-passed settle.

Envelope

the swish swells with an eased curve to its peak, then drops quickly into the snap; the whole sound ends in silence with a fast fade after the settle.

Variation

`rng` shifts the peak time and snap time by a few percent and the rustle grain timing and strength; macros set length, brightness, flutter amount, snap strength and stereo travel.

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