Meeting Reminder

How it's made

Source

a tuned wooden or glass-like bar struck three times with a soft felt mallet, each note a step higher. The felt strike is a 6–10 ms low-passed noise thump layered on the sine partials of the bar.

Body

each bar rings with a strong fundamental, a second partial near 2.76x (bar-like, soft) and a weak partial near 5.4x that dies in about 80 ms, so the attack is round and the tail is nearly a pure sine. A faint sine an octave below (0.5x, very quiet) adds warmth under the fundamental.

Envelope

3 ms onset to avoid clicks, then exponential decay (T60 0.4–1.3 s for the fundamental, shorter for upper partials). Notes overlap, and each later note is slightly softer so the phrase feels polite.

Variation

`rng` detunes partials by ±0.2 % and the note strength by a few percent; macros set the root pitch, the three-note shape (major triad, open fourth-sixth, stepwise), note spacing, ring time and mallet softness.

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