UIloop · 4.00 s
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Retro Menu Confirm
A crisp two-note ascending square-wave arpeggio, the 8-bit sound of confirming a menu option
one-shot · 0.40 s · 0 downloads · 0 likes
0.00 / 0.40 sOctave leap
Preset
Tweak
renders in the CLI · WAVChange parameters to build an exact command. Your agent runs it with sb and gets the WAV.
$ sb get HE0A9BC34H@1 --preset leap -o retro-menu-confirm.wav
How it's made
- Source
- a console-style pulse-wave channel playing a two-note ascending arpeggio, as in an 8-bit menu confirm. Each note is a band-limited pulse (duty 20–50 %) doubled by a quieter square one octave up, the way chip channels are layered for a thicker lead.
- Body
- no resonant body, only a filter that opens on the attack and closes during the note, so the tone starts crisp and settles into a rounder square; a tiny noise tick marks each note onset.
- Envelope
- 1 ms onset ramp (no click), a short hold then a fall per note, like a tracker volume envelope; the second note is a third/fourth/fifth/octave above and rings slightly longer.
- Variation
- interval, note length, duty cycle and brightness; `rng` detunes each note by a few cents.
| Parameter | Range | Default | Unit | Controls |
|---|---|---|---|---|
| pitch | 440 – 1760 | 880 | Hz | Pitch |
| interval | third · fourth · fifth · octave | fifth | — | Interval |
| noteLength | 0.04 – 0.14 | 0.065 | s | Note length |
| duty | 0.2 – 0.5 | 0.5 | — | Lower values sound thinner and more nasal |
| brightness | 0 – 1 | 0.6 | — | Brightness |
| octaveLayer | 0 – 1 | 0.3 | — | Octave layer |
| 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('HE0A9BC34H@1')