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Race Countdown
A three-two-one-go start countdown: three identical low electronic beeps and a higher, longer final beep
one-shot · 4.41 s · 0 downloads · 0 likes
0.00 / 4.41 sSoft Sim
Tweak
renders in the CLI · WAVChange parameters to build an exact command. Your agent runs it with sb and gets the WAV.
$ sb get 1PCA80YGN6@1 --preset soft -o race-countdown.wav
How it's made
- Source
- a classic electronic start-light beeper. Each beep is a band-limited square plus a saw an octave up (the buzzy "electronic" edge), a slightly detuned second square for a gentle chorus, and a pure sine fundamental that keeps the tone solid and centred.
- Body
- a low-pass filter follows the beep, opening for the first few milliseconds and settling to a steady cutoff, so the attack is bright and the sustained tone is rounder. The final beep is the countdown pitch raised by an interval and also gets a sub-octave sine for weight.
- Envelope
- three equal short beeps (4 ms attack, flat hold, 25 ms release) at a steady one-second pulse, then a long final beep (5 ms attack, slow 2 dB sag, 150 ms release). Ramps avoid clicks.
- Variation
- the base pitch, the interval of the "go" beep, the pulse spacing, the length of the final beep and the brightness; rng only adds a fraction of a cent of detune so the pair does not phase-lock.
| Parameter | Range | Default | Unit | Controls |
|---|---|---|---|---|
| pitch | 260 – 700 | 440 | Hz | Count Pitch |
| interval | 1.25 – 2.5 | 2 | — | Frequency ratio of the final beep to the count beeps |
| spacing | 0.55 – 1.1 | 1 | s | Spacing |
| goLength | 0.4 – 1.2 | 0.85 | s | Go Length |
| brightness | 0 – 1 | 0.5 | — | Brightness |
| edge | 0 – 1 | 0.5 | — | Electronic Edge |
| 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('1PCA80YGN6@1')