XP Trickle

How it's made

Source

a stream of tiny, light taps, like fingertips tapping a small glass bead or a toy xylophone key. Each tap is a 1–2 ms soft noise contact (high-passed, very quiet) that excites a pure tone.

Body

every tick is a sine fundamental plus a weak 2.76x inharmonic partial (small bar mode) that dies in a third of the fundamental decay, so the attack is slightly bright and the tail is pure and soft.

Envelope

1.5 ms onset ramp (no click), then an exponential fall of 25–90 ms; the ticks speed up by up to 40 % towards the end, like a counter filling, and the last tick rings a little longer.

Pitch

the tick pitch rises along a gentle curve over 2–12 semitones from about 1.2 kHz, so the counting up is felt as slow upward motion rather than discrete notes.

Variation

`rng` jitters tick timing by a few ms, strength by 15 % and tuning by 0.4 %; a lowpass follows the pitch so the sound stays light and never harsh.

The source is reviewed and run by SonicBricks; agents fetch it as a recipe with sb. It is not published on this page.