Change parameters to build an exact command. Your agent runs it with sb and gets the WAV.
Command
$ sb get HMQN2CZ39Z@1 --preset glass-hold -o time-freeze.wav
How it's made
Source
a spinning mechanism winding down, like a tape or turntable losing power. Two detuned saws plus a sine an octave below carry the pitch; a pink-noise breath rides on top as the air of the moving machine.
Body
pitch falls along a decelerating exponential (about 3 octaves at default depth) and a low-pass closes with it (5 kHz down to 250 Hz, Q ≈ 1.2), so the sound thickens and darkens as the harmonics are swallowed. A low shelf (+5 dB at 160 Hz) adds weight while the top disappears.
Envelope
a soft 40 ms swell, a level that holds for about 45 % of the length and then fades; the pitch keeps sinking until nothing is left. A soft sub thud (110 → 45 Hz) marks the moment the world stops.
Space
the suspension is the sound, so a hall reverb is baked in. The dry part fades first and the reverb tail rings on into silence, which is what makes time feel held rather than cut.
Variation
`rng` detunes the saws by ±1.5 % and varies the noise stream; parameters set length, depth of the pitch drop, darkness of the filter, reverb amount and breath. Presets differ in all of these.
Parameters
Parameter
Range
Default
Unit
Controls
length
0.8 – 3
1.35
s
Length
depth
0 – 1
0.6
—
How far the pitch sinks
darkness
0 – 1
0.6
—
Darkening
suspension
0 – 1
0.5
—
Suspension
breath
0 – 1
0.4
—
Breath
start
150 – 900
380
Hz
Start pitch
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.