Change parameters to build an exact command. Your agent runs it with sb and gets the WAV.
Command
$ sb get AVEMTASBYM@1 --preset courtesy -o short-car-horn.wav
How it's made
Source
two electrically driven diaphragms, nominally 405 and 506 Hz, sounding together. Finite sine banks emphasize odd harmonics through the ninth for a square-like reed buzz without aliasing.
Body
each horn's flare emphasizes a broad 1.2-1.8 kHz nasal band; weak even harmonics represent asymmetric diaphragm travel. A quiet 0.9-3 kHz noise layer supplies contact and diaphragm rasp.
Envelope
14-23 ms rounded attacks with a 2.8 percent pitch run-up, a nearly level powered hold, then 75-90 ms release. Upper harmonics darken before the fundamentals stop; no room is baked in.
Modulation
independent 27-34 Hz low-depth amplitude flutter and slight pitch drift keep the two diaphragms alive. Their upper partials interfere, giving the simultaneous tones an abrasive edge.
Variation
seeded tuning varies by 0.3 percent and the second horn starts 3-7 ms later. Controls set horn size, interval, powered duration, flare brightness and the balance of the two horns.
Presets
a soft courtesy tap, a bright compact horn, a lower full-bodied pair and a firm warning.
Parameters
Parameter
Range
Default
Unit
Controls
pitch
320 – 490
405
Hz
Lower horn pitch
hold
0.2 – 0.48
0.39
s
Powered duration
brightness
0 – 1
0.57
—
Flare brightness
interval
1.17 – 1.31
1.25
—
Horn frequency ratio
balance
0 – 1
0.52
—
Upper horn balance
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.