Clap

Classic electronic clap. The rapid-fire burst → long tail anatomy of the 808/909 clap, with extra shaping controls.

Available on: Track 4
Built on: Custom CTAG voice — multi-burst filtered noise with dual-envelope tail.


Character

Two filtered noise layers running through a pair of state-variable filters and AD envelopes, with a timer-driven transient engine that fires a sequence of short bursts followed by a longer noise tail. The scale and transient controls let you go from tight hand-claps to wet, room-sized claps.


Parameters

The cl-allparams macro surfaces the five most playable controls across two pages — the underlying DSP has more layers internally (two filtered burst layers, per-layer resonance and decay, timer patterns) that the macro collapses into higher-level shaping knobs:

Page Knob 1 Knob 2 Knob 3 Knob 4
Tone Freq Tone Decay Scale
Shape Trans

Tone

Parameter Range What it does DSP
Freq low → high Centre pitch of the burst layers pitch1 / pitch2
Tone soft → sharp Filter resonance shaping reso1 / reso2
Decay short → long Overall tail length of both layers decay1 / decay2
Scale tight → spread Spacing of the burst sequence scale

Shape

Parameter Range What it does DSP
Trans 0 → 15 Transient pattern preset (burst timing / attack softness) transient

Lock Scale or Trans per step to turn a single clap track into handclap, rimshot-burst and tambourine-like textures.


See also

Origin & credits

Custom CTAG voice (synthesis/Clap.hpp / .cpp) by Robert Manzke — part of the CTAG TBD rack library (GPL 3.0). Uses stmlib SVF filters and CTAG’s own AD envelope / timer helpers.

  • DSP source: synthesis/Clap.hpp / .cpp
  • TBD-16 wrapper: rack/RackClap.hpp / .cpp