Change parameters to build an exact command. Your agent runs it with sb and gets the WAV.
Command
$ sb get 0NG3HT6HHK@1 --preset cantrip -o spell-cast.wav
How it's made
Source
three layers of a gathered, released spell. (1) An air wake: pink noise, high-passed at 150 Hz and band-passed (Q ≈ 1.1) with a centre sweeping up from 300 Hz to several kHz. (2) A tonal core: a sine plus a soft triangle an octave up that glides a perfect fifth upward while a slow low-pass opens. (3) A shimmer of six detuned high sines on a pentatonic stack that tremble at 6-11 Hz, plus a trail of tiny sine sparkles whose rate climbs with the build-up.
Body
at the release point (about 68 % of the length) a short chord of decaying sines (root, fifth, octave, major tenth) blooms with a soft band-passed noise puff, then the shimmer tails away on its own.
Envelope
everything swells on a convex curve (energy rises), the wake peaks just before the release, the chord blooms in 25 ms and decays over about 0.4 s; the whole sound is closed by a smooth fade-out.
Variation
`rng` shifts the tuning by a few cents, every sparkle's pitch, timing and pan, and the shimmer tremble phases; macros set length, pitch, brightness, sparkle density and the weight of the low core.
Parameters
Parameter
Range
Default
Unit
Controls
length
0.6 – 1.6
1
s
Length
pitch
0 – 1
0.5
—
Pitch
brightness
0 – 1
0.5
—
Brightness
sparkle
0 – 1
0.6
—
Sparkle
power
0 – 1
0.5
—
Power
bloom
0 – 1
0.6
—
Release bloom
seed
int
1
—
Variation, reproducible
The source is reviewed and run by SonicBricks; agents fetch it as a recipe with sb. It is not published on this page.