Geiger Counter

How it's made

Source

detected particles trigger short electrical pulses in a small detector loudspeaker. Poisson arrivals produce irregular isolated ticks and chance clusters, rather than a clock rhythm.

Excitation

a 0.15 ms attack and 1.5–3 ms filtered noise burst represents the pulse edge and cone snap.

Body

strongly damped speaker motion at 1.1–2.2 kHz and a weaker upper mode at 2.5 times that frequency decay within 7–15 ms; a broad 750–1300 Hz enclosure band gives each tick a small dry body.

Envelope

every pulse fades fully within 35 ms; a 180 Hz high-pass removes DC and handling rumble, and a 5–8 kHz low-pass rounds the electrical edge without turning it into continuous hiss.

Density

4–90 counts/s, modulated by a four-second proximity swell and gentle random source movement. The renderer crossfades the stochastic loop seam; no metronomic beat or added room reverberation.

Variation

pulse level varies moderately, tuning by ±4 percent and decay by ±15 percent. Presets cover low counts, near-source chatter, a dense hotspot and strongly changing survey activity.

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