Gameone-shot · 0.54 s
♥ 0↓ 1@sonicbricks
Extra Life
A fast ascending six-note square-wave arpeggio, the chiptune jingle for gaining an extra life
one-shot · 0.88 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 71TZBS0E1S@1 -o extra-life.wav
How it's made
- Source
- a two-voice 8-bit sound chip. The lead is a pulse wave (12.5–50 % duty) stepping through six arpeggio notes; a second square channel an octave below at reduced level thickens the body like a bass channel.
- Body
- the pulse spectrum is odd-harmonic (50 %) or comb-like (narrow duty), so the tone is hollow and bright. A gentle low-pass at 3.5–12 kHz removes the harshest top partials; the oscillators are band-limited, so no aliasing. The final note adds a 6 Hz vibrato after 120 ms, as game composers do on held notes.
- Envelope
- every note has a 1 ms attack (no click) and a chip-style volume decay of about 0.3 s; the last note rings longer and fades out smoothly. Notes arrive every 50–110 ms, fast enough to read as a run.
- Variation
- the scale (major, lydian, pentatonic) sets the interval pattern, `rng` detunes each note by a few cents, `duty` and `brightness` change the timbre; presets move root pitch, speed, tone and length.
| Parameter | Range | Default | Unit | Controls |
|---|---|---|---|---|
| root | 330 – 1000 | 659 | Hz | Root pitch |
| speed | 0.05 – 0.11 | 0.07 | s | Note step |
| scale | major · lydian · pentatonic | major | — | Scale |
| notes | 4 – 8 | 6 | — | Notes |
| duty | 0.125 – 0.5 | 0.5 | — | Pulse width |
| brightness | 0 – 1 | 0.6 | — | Brightness |
| hold | 0.2 – 0.8 | 0.4 | s | Final hold |
| bass | 0 – 1 | 0.5 | — | Octave-down 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('71TZBS0E1S@1')