Racket Hit

How it's made

Source

a ball (felt or rubber) hitting a strung racket face. Contact lasts 2-5 ms, so the excitation is a short low-passed noise burst plus a softer, slightly longer thump from the ball compressing.

Body

the string bed is a taut membrane-like grid; it rings in a few near-harmonic modes (fundamental 0.55-1.1 kHz, ratios ~ 1 : 1.98 : 3.05 : 4.1) that decay in 25-90 ms because the strings are damped by the ball and the frame. The frame and handle add a short, dull resonance at 160-320 Hz (decay ~ 40 ms).

Envelope

instant attack, an exponential decay of the pop within ~ 0.1 s and a tiny tail; the whole hit is over in about 0.3 s. A tighter string tension shortens and raises the ring.

Variation

`rng` jitters mode tuning (+-1.5 %), contact noise and frame pitch; macros set string tension, ball hardness, sweet-spot (centre hits ring clean, frame hits get a dull clack) and tail length.

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