School Bell Ring

An electric school bell: a clapper hammering a metal gong with a steady buzz, then cutting off abruptly

one-shot · 3.61 s · 0 downloads · 0 likes

0.00 / 3.61 sMP3 preview · Worn old bell

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 TFMB4YT3C7@1 --preset old -o school-bell-ring.wav

Source: an electric bell. A solenoid drives a small steel clapper against the rim of a shallow gong at 20-35 strikes per second. Each strike is a 0.5-2 ms noise click; the interrupter contact adds a mains-locked buzz.
Body: the gong rings in inharmonic metal modes (ratios 1 : 1.52 : 2.35 : 2.9 : 4.1 : 5.4), the lowest around 1 kHz. Decays of 0.1-0.5 s are longer than the 40 ms strike gap, so the hits overlap into one dense, sustained metallic tone with a fast roughness from the repeated excitation.
Buzz: the armature chatters at twice the mains frequency (100 Hz); a band-limited saw with a hard 2-3 kHz resonance of the bell frame carries it, gated in step with the clapper cycle.
Envelope: the bell is at full level at once (the circuit is closed), strike strength wanders by a few percent as the clapper bounces, and the circuit opens abruptly: a 6 ms fade removes the sound without a click.
Variation: `rng` mistunes the modes by up to 0.5 %, jitters the strike timing and strength; presets change the gong size, strike rate and buzz.

Parameters
Parameter	Range	Default	Unit	Controls
pitch	500 – 2000	1000	Hz	Gong pitch
rate	14 – 40	26	Hz	Strike rate
buzz	0 – 1	0.45	—	Buzz
brightness	0 – 1	0.5	—	Brightness
length	1 – 5.5	3.8	s	Ring length
looseness	0 – 1	0.35	—	Clapper looseness
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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