Change parameters to build an exact command. Your agent runs it with sb and gets the WAV.
Command
$ sb get TQCG450CFQ@1 --preset hummingbird -o fairy-wings.wav
How it's made
Source
tiny membrane wings beating 12–25 times per second. Each stroke pushes a soft puff of air, so the sound is band-limited air noise (2–7 kHz) whose level is chopped by the wingbeat, not a tone.
Flutter
two slightly detuned beat rates (ratio 1.37) multiply into an irregular, never-mechanical pattern; the strokes are squared and smoothed over 4 ms so they stay soft. The left and right wing beat out of phase, which widens the image.
Wobble
the distance and angle of the hovering creature slowly change the level and the brightness of the flutter (0.5 and 0.75 Hz, whole cycles in the 4 s loop).
Twinkles
magic dust as sparse sine pings on a pentatonic set around 2.4–4 kHz with a faint octave partial, a 4 ms soft attack, a 250–450 ms exponential ring and a random pan; the rate is a few per second.
Variation
`rng` picks the note, ring time, level and position of every twinkle; presets change wingbeat rate, air colour, wobble depth and twinkle density.
Parameters
Parameter
Range
Default
Unit
Controls
flutter
8 – 28
16
Hz
Wingbeat rate
air
2200 – 6000
3800
Hz
Air colour
wobble
0 – 1
0.35
—
Wobble
twinkle
0 – 1
0.5
—
Twinkle density
pitch
2000 – 4000
3000
Hz
Twinkle pitch
sparkleLevel
0 – 1
0.5
—
Twinkle level
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.