Wind-up Toy Walk

How it's made

Source

a spring-driven tin walker; fine gear rubbing at 650-3800 Hz under 2-5 foot contacts/s. Gear teeth strike at eight times the foot rate with 0.4 ms attacks and 4 ms decays.

Body

thin tin shell modes at 1130, 1870 and 3190 Hz, scaled by size, decay in 32-85 ms. Table contacts add damped 290 and 740 Hz wood resonances with 38-65 ms decay.

Layers

a quiet two-partial gear whir follows cyclic leg loading; band-limited friction masks its tonal purity. Alternating foot taps excite the shell and a delayed loose-panel rebound.

Envelope

each foot has a 1 ms attack, 12 ms contact and a 24 ms scuff; rebound arrives 19 ms later. The spring bed breathes with each step and with the left/right gait, rather than staying static.

Loop

4 s contains whole steps and tooth cycles at integer rates; renderer crossfades the boundary.

Variation

seeded contact tuning varies by 2.5%, strength by 15%, with narrow alternating pan. Pace, shell size, panel looseness and spring prominence distinguish four mechanical conditions.

Space

dry tabletop close-up; no room reverb, sub-bass, startup or winding-key gesture.

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