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Keypad Beep
A single short key beep from a PIN pad or dial pad: a clean, flat sine tone that stops abruptly
one-shot · 0.35 s · 0 downloads · 0 likes
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Tweak
renders in the CLI · WAVChange parameters to build an exact command. Your agent runs it with sb and gets the WAV.
$ sb get 1JSMNW6SVG@1 --preset long -o keypad-beep.wav
How it's made
- Source
- a small piezo sounder driven at a fixed frequency, heard after the housing and grille have filtered it: a near-pure sine at 1.0–3.0 kHz with a faint second harmonic (about −30 to −14 dB).
- Body
- the piezo disc resonates around its drive frequency (broad peak, Q ≈ 2) and the case rolls off everything above ≈ 6 kHz, so no harsh overtones remain; an optional upper tone (dial-pad style) sits a fourth-to-fifth above the main tone at up to −6 dB.
- Envelope
- a 4–10 ms onset ramp (no click), a flat sustain, then a 2–8 ms release because the driver is simply gated off; total length about 0.12 s by default.
- Variation
- `rng` detunes the tone by ±0.5 %, so repeated key presses are not mechanically identical. Presets change pitch, length, harmonic content and ramp softness (ATM key, dial pad, soft tap, confirm).
| Parameter | Range | Default | Unit | Controls |
|---|---|---|---|---|
| pitch | 1000 – 3000 | 1800 | Hz | Pitch |
| length | 0.05 – 0.3 | 0.12 | s | Duration of the sustained tone |
| brightness | 0 – 1 | 0.3 | — | Amount of second harmonic from the piezo |
| softness | 0 – 1 | 0.3 | — | Longer onset and release ramps |
| dual | 0 – 1 | 0 | — | Level of a dial-pad style upper tone |
| 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
- r12026-10-24engine 1.0.1use('1JSMNW6SVG@1')