Rune Activate

How it's made

Source

an ancient carved stone slab waking up. A slow, soft swell (no hard strike) drives a low resonant hum, while a glowing overtone climbs above it as the rune lights up.

Body

the stone hums as a few weakly damped modes at 1 : 1.5 : 2.01 : 2.76 of the fundamental (about 110 Hz, 0.5-0.9 s T60), excited by low-passed noise so it sounds dense and rocky, plus a pure sine fundamental with a sub-octave for weight.

Rising overtone

a sine glides from 3x to about 7x the fundamental over the swell; a detuned twin beats against it at 3-6 Hz for a shimmering glow, and a faint band-passed air layer follows the glide.

Envelope

attack 0.25-0.35 s (energy gathering), peak near 0.45 s, then a smooth 0.7 s release; the overtone peaks slightly later than the hum and fades first, so the tail is the stone alone.

Variation

`rng` detunes the modes by 0.5 % and the glide start by 2 %; presets change pitch, glide height, stone density and glow amount.

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