Change parameters to build an exact command. Your agent runs it with sb and gets the WAV.
Command
$ sb get R3FCTF2DD5@1 --preset airy -o pneumatic-sliding-door.wav
How it's made
Source
a pressurised actuator vents air (turbulent pink noise, 0.9–5 kHz) while a small electric motor drives the door leaf (a saw-rich tone with a 2nd and 3rd partial, 140–380 Hz fundamental).
Body
the vent hiss is shaped by a band-pass (Q ≈ 0.9) whose centre falls as the pressure drops; the motor passes through a low-pass at 6x its pitch and a gentle track resonance near 900 Hz.
Envelope
a 6 ms latch tick, then a 0.04 s hiss burst that decays over the travel; the whir rises in pitch and level for the first 45 % of the travel and winds down; a second soft puff and a 55–95 Hz damped thud mark the leaf hitting its rubber stop at about 78 % of the length.
Variation
`rng` shifts the stop time by a few percent and detunes the motor; `length` stretches the travel, `whir` and `thud` balance the layers, `air` sets hiss brightness.
Parameters
Parameter
Range
Default
Unit
Controls
length
0.6 – 1.2
0.82
s
Length
air
0 – 1
0.5
—
Air brightness
whir
0 – 1
0.5
—
Motor whir
thud
0 – 1
0.5
—
Stop thud
pitch
0.7 – 1.5
1
—
Motor pitch
travel
-1 – 1
0
—
Pan
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.