Lightning Spell

How it's made

Source

a magical bolt discharging. The strike is a broadband ionisation crack (1–3 ms noise onset, 12–40 ms decay, mostly above 2 kHz) over a short "zap" chirp sweeping from about 5 kHz down to 900 Hz.

Body

the plasma channel buzzes as a rough 100 Hz saw with its upper harmonics amplitude-chopped by random flicker, band-passed around 1.2–3 kHz (Q ≈ 1.2); the air column adds a rumbling tail of brown noise low-passed at 90–260 Hz plus a 70 → 42 Hz sine thump falling in pitch.

Envelope

crack peaks at once and is gone in 0.1 s; the buzz holds 0.4–0.6 s and sputters out; the rumble swells 60 ms after the crack (sound travelling from the channel) and fades over the remaining length.

Variation

`rng` shifts the chirp start, buzz pitch (±3 %), flicker pattern and rumble texture; power sets crack level and thump depth, brightness the spectral tilt, buzz the arc level, rumble the tail weight.

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