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Robot Boot-Up

A robot powering on: a rising motor whir, chirpy beeps and a servo settling into place

kind
one-shot
length
2.01 s
downloads
0
id
R26KX4YKJQ

one-shot · 2.01 s · 0 downloads · 0 likes

0.00 / 2.01 sMP3 preview · Quiet standby
Preset
Spectrogram of “Robot Boot-Up”, Quiet standby preset
Spectrogram of “Robot Boot-Up”, Quiet standby preset: time left to right, frequency bottom to top.
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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 R26KX4YKJQ@1 --preset quiet -o robot-boot-up.wav

How it's made

Source
a small electric drive spinning up (band-limited saw plus a triangle sub-octave, 55 → 330 Hz) with gear/bearing air noise; then a synth beeper (square + sine) playing short rising chirps; then a servo whine (saw, 1.1 kHz falling to 700 Hz) as the actuators lock into position.
Body
the motor body is a low-pass whose cutoff opens from 300 Hz to about 2 kHz as rpm rises, with a narrow band (Q ≈ 3) riding at 5x the fundamental for the whir; the beeper is low-passed at 3.5-6 kHz to stay clean.
Envelope
whir swells over 1.15 s, holds, then drops away by 1.75 s; beeps are 75 ms each with a 4 ms attack and a quick decay, spaced about 105 ms apart from 0.92 s; the servo settles over 0.4 s from 1.5 s with a 20 ms attack and a long decay, ending with a faint latch tick; everything is faded out by 2.0 s.
Variation
`rng` shifts beep pitch (±2 %) and spacing; `pitch` scales every frequency, `whir` and `beeps` balance the layers, `settle` sets the servo level, `brightness` opens the filters.
Parameters
ParameterRangeDefaultUnitControls
pitch0.6 – 1.81—Scales the size of the robot: low is big, high is small
whir0 – 10.7—Motor whir
beeps2 – 64—Beep count
beepLevel0 – 10.6—Beep level
settle0 – 10.6—Servo settle
brightness0 – 10.5—Brightness
seedint1—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.

Credits and creation history (JSON)
Revision history1
  1. r12026-10-24engine 1.0.1use('R26KX4YKJQ@1')

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