Footstep on Short Grass

How it's made

Source

a shoe compresses short grass and damp turf; filtered noise models soil displacement, overlapping 6-28 ms noise grains model blade compression, and pink noise models sole friction.

Body

soil is a broad, non-pitched 70-230 Hz thump, not a ringing cavity. Grass friction occupies 550-4200 Hz; moisture lowers its bandwidth and suppresses brittle high-frequency contacts.

Envelope

heel loads over 8-15 ms; the softer toe follows after 65-120 ms. Compression grains cluster around both contacts. A 70-220 ms toe scuff fades as flattened blades slide free.

Modulation

friction brightens during loading and darkens on release; smooth 45 Hz noise gives irregular fibrous flutter. Cascaded low-pass filters remove hard edges above 6 kHz.

Variation

independent seeded streams vary heel-toe timing, grain timing, colour and strength. Weight changes low-body balance; moisture damps crunch; scuff controls sliding; pace shortens contact.

Presets

light sneaker, damp weighted boot, dry clipped lawn, and a slower toe-drag step. All are dry, close mono footsteps suitable for positioning and repeated seeded game playback.

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