UIloop · 4.00 s
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Retro Cursor Blip
A short 8-bit square-wave blip for moving a cursor through game-style menus
one-shot · 0.14 s · 0 downloads · 0 likes
0.00 / 0.14 sdefault
Tweak
renders in the CLI · WAVChange parameters to build an exact command. Your agent runs it with sb and gets the WAV.
$ sb get M4X9PPZFJW@1 -o retro-cursor-blip.wav
How it's made
- Source
- an 8-bit console pulse channel. A narrow-duty pulse wave (12.5–50 %) rich in harmonics is the voice; a quieter triangle channel one octave below adds the low weight a bare pulse lacks.
- Body
- no acoustic body, only the lo-fi output stage: the mix is quantised to 3–8 bits (stair-stepped waveform, granular quantisation fizz) and low-passed at 5–11 kHz so the fizz stays smooth, not harsh.
- Envelope
- chip-style flat level with no decay: 2 ms attack ramp to avoid a click, a hold, then a 6–10 ms release to zero. A single pitch step (+0 to +12 semitones, instant like a tracker note jump) lands at 40 % of the note and gives the blip its "bip" motion.
- Variation
- `rng` mistunes the pitch by up to ±0.5 % per render; presets change pitch, duty, step interval, bit depth and length (cursor move, select tick, back, low-fi pocket).
| Parameter | Range | Default | Unit | Controls |
|---|---|---|---|---|
| pitch | 330 – 2400 | 880 | Hz | Pitch |
| step | 0 – 12 | 5 | st | Semitones the note jumps up mid-blip |
| duty | 0 – 1 | 0.5 | — | Low is thin and nasal, high is a hollow square |
| bits | 3 – 8 | 5 | — | Bit depth |
| length | 0.04 – 0.09 | 0.07 | s | Length |
| tone | 5000 – 11000 | 8000 | Hz | 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('M4X9PPZFJW@1')