Scanner Sweep

A scanning beam sweeping over an object: rising tone, rhythmic ticks and filtered shimmer

one-shot · 2.45 s · 0 downloads · 0 likes

0.00 / 2.45 sMP3 preview · Glittering shimmer

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 QNT9D09357@1 --preset glitter -o scanner-sweep.wav

Source: a synthetic scanner beam, built from three layers that follow one shared exponential sweep (default 330 Hz to 2.6 kHz): a sine-led tone, a tick train and a band-limited noise shimmer.
Body: the tone is a sine fundamental plus a quiet triangle octave and a 0.4 % detuned twin that beats slowly; a 6 Hz vibrato of 0.5 % keeps it alive. The shimmer is white noise through a Q = 4 band-pass at 2.4 x the sweep, gated by a 9 Hz tremolo, with independent left and right noise for width.
Events: ticks fire periodically (default 14 per second, 12 % timing jitter). Each is a 3 ms filtered noise burst plus a 12 ms sine ping an octave above the sweep, so the rhythm is pitched and follows the beam.
Envelope: 40 ms fade in, steady scan, then the level falls over the last 20 % of the sweep and a 0.15 s tail; ticks and shimmer die with the beam so the sound ends cleanly.
Variation: the beam crosses the stereo field and every tick is panned to the beam position; `rng` offsets tick timing, strength, pan and pitch by a few percent, and detunes the twin tone.

Parameters
Parameter	Range	Default	Unit	Controls
length	0.8 – 3.5	1.9	s	Length
low	150 – 1200	330	Hz	Start pitch
high	1200 – 5000	2600	Hz	End pitch
tickRate	4 – 30	14	Hz	Tick rate
ticks	0 – 1	0.6	—	Ticks
shimmer	0 – 1	0.5	—	Shimmer
travel	-1 – 1	0.7	—	Negative values scan right to left
tone	0 – 1	0.7	—	Tone level
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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