Low Battery Warning

Three soft descending notes that fade as they fall, warning that a device battery is running low

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Preset

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Free for commercial use. No attribution needed.

Tweak

renders in the CLI · WAV

Change parameters to build an exact command. Your agent runs it with sb and gets the WAV.

Command

$ sb get ZYH1Y7NMWN@1 -o low-battery-warning.wav

Source: a small electronic beeper voiced like a soft synth pluck, played as three falling notes.
Body: each note is a sine fundamental, a triangle layer detuned by 0.3 % for warmth and a faint 2× partial that dies quickly; a low-pass whose cutoff drops from note to note keeps the tone dull and rounded.
Envelope: a 9 ms soft onset (no click), then an exponential decay; each note is quieter and darker than the last (softening level), so the phrase seems to drain away.
Variation: start pitch, step size between notes, spacing, ring time, dullness and how much each note softens; `rng` detunes each note by a fraction of a percent.

Parameters
Parameter	Range	Default	Unit	Controls
pitch	330 – 1000	587	Hz	Start pitch
step	1 – 7	3.5	st	Step (semitones)
spacing	0.12 – 0.4	0.22	s	Spacing
decay	0.15 – 0.8	0.3	s	Ring
dullness	0 – 1	0.6	—	Dullness
softening	0 – 1	0.5	—	Softening
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.

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