Cityloop · 4.00 s
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Crosswalk Signal Tick
Periodic mid-pitched clicks from a pedestrian crossing loudspeaker, with dry cone and enclosure detail.
loop · 2.00 s · 0 downloads · 0 likes
0.00 / 2.00 sRounded low driver
Tweak
renders in the CLI · WAVChange parameters to build an exact command. Your agent runs it with sb and gets the WAV.
$ sb get SDXJP6YPJ3@1 --preset rounded -o crosswalk-signal-tick.wav
How it's made
- Source
- a pedestrian signal loudspeaker driven by short electrical pulses, not a sustained beep. A 0.7 ms onset and 3 ms band-limited noise transient represent the diaphragm's initial acceleration.
- Body
- a midrange 700-1400 Hz driver pulse has a weaker second and short third harmonic; a small enclosure adds a damped 430 Hz response and a broad cone resonance near 1.8 times the driver pitch.
- Envelope
- the driver settles downward by 4 percent over 12 ms; upper harmonics decay in 10-18 ms, the fundamental in 22-55 ms. Each voice is smoothly silenced by 110 ms, with no background bed.
- Rhythm
- identical electronic timing at 1-8 ticks per second; the 2 s loop holds whole periods.
- Variation
- per-tick gain varies by less than 2 percent and enclosure excitation uses seeded noise. Presets separate slow locator pulses, regular walking ticks, fast crisp ticks and a rounded low driver.
- Space
- dry mono point source, high-passed below 180 Hz; scene distance and reflections are left to users.
| Parameter | Range | Default | Unit | Controls |
|---|---|---|---|---|
| rate | 1 – 8 | 4 | — | Ticks per second |
| pitch | 700 – 1400 | 950 | Hz | Driver pitch |
| brightness | 0 – 1 | 0.55 | — | Pulse edge |
| decay | 0.022 – 0.055 | 0.035 | s | Driver decay |
| 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.
Revision history1
- r12026-10-25engine 1.0.1use('SDXJP6YPJ3@1')