Ice Shard Freeze

How it's made

Source

a spell that flash-freezes a target. Three physical events: cold gas hissing as the surface chills, thin ice sheets cracking as they grow, and a rigid glassy shell locking into place.

Hiss

high-passed white noise (above ~3.5 kHz) swelling over ~0.35 s and fading over the rest of the length, with a band-pass that sweeps down from 9 kHz to 5 kHz as the gas cools.

Crackle

a Poisson stream of tiny ice fractures whose rate starts high and thins out as the shell hardens; each is a 1 ms noise tick exciting two inharmonic modes at 3–9 kHz that ring for 10–40 ms.

Glass tones

a modal bank at roughly 1 : 2.76 : 5.4 : 8.9 of a 1.4–2.8 kHz fundamental (glass-like ratios), struck once at the freeze-lock (0.3 s) and ringing up to ~1 s, preceded by a faint rising shimmer sine pair.

Envelope

onset 20 ms, lock at 0.3 s, crackle thins out by ~80 % of the length, a short fade ends the sound.

Variation

`rng` jitters crackle timing, pitch and pan, and mistunes the glass partials by ±0.5 %.

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