Footstep on Glass Shards

How it's made

Source

a boot loads loose broken glass at heel and toe, 65-120 ms apart; filtered noise models sole contact, while dense bipolar grain and 1-4 ms fracture bursts model compression and grinding.

Body

fragments ring in irregular flexural modes at 1.5-9 kHz, with ratios 1:1.63:2.71; lower modes decay in 65-160 ms and upper modes in 30-75 ms, damped by the sole and adjacent shards.

Envelope

heel pressure rises in 4 ms; toe pressure renews the crunch, then friction shifts downward in frequency as loading stops. Sparse released fragments settle through 410 ms; fade ends at 550 ms.

Layers

a short 80-700 Hz sole thud anchors the bright grain; narrow stereo fragment collisions sit above a 0.7-8 kHz abrasive bed. No room reverberation is baked into the contact.

Variation

seeded timing, fragment tuning, collision strength and pan vary every step. Load controls thud and fracture density; shard size lowers ringing modes; grind extends the rolling pressure.

Presets

heavy crush, fine grit, loose large shards and a twisting sole vary contact timing, spectral balance, event density and friction length rather than only overall gain.

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