Buckle, a vintage buckling spring

Updated

Vintage buckling spring: a snap over ringing steel.

Press any key, or tap the keys below, to hear Buckle. These are the same samples the app plays.

Category
Mechanical
Brightness (centroid)
2,966 Hz
Key press length
90 ms

What it imitates

Buckle models a buckling-spring keyboard, the vintage design in which a spring bends sideways under the key and snaps against a hammer. Teclo builds the snap and the ring of the long steel spring into each press, so the sound has a short metallic tail behind the click.

Teclo’s sounds are synthesized, not recorded. Its sound engine builds each pack from a model of the parts that make the sound, then plays the same files in the app that you hear on this page.

How it measures

Every pack is measured when it is rendered. The table puts Buckle next to Knuckle and Cricket, the packs closest to it in feel.

Pack Category Brightness (Hz) Press (ms) 90% of energy in (ms) Low/high (dB) 1–3 kHz share
Buckle Mechanical 2,966 90 14.1 -12.9 53%
Knuckle Mechanical 3,653 90 11.3 -14.7 55%
Cricket Mechanical 3,148 70 7.1 -12.8 46%

Brightness is the energy-weighted mean frequency of a key press, so a higher number sounds brighter. Low/high is the energy below 1 kHz against the energy above it: the higher, the deeper. Nobody has tuned these packs by ear yet; the figures are what the files measure.

Who it suits

People who learned to type on an old office terminal or simply like a loud, old-fashioned board (a suggestion).

Use it in Teclo

  1. Click the keycap icon in the menu bar to open Teclo’s window.
  2. Pick Buckle in the list of packs, under Mechanical.
  3. Type anywhere. Teclo plays a different sound for a key going down and coming up, and separate sounds for Space, Return and Delete.

Every pack also has its own pair of mouse click sounds, made from the same model. Try the other packs on the sound packs page.

Questions

Is Buckle recorded from an old keyboard?

No. Buckle is synthesized: Teclo models the spring snap and the ringing steel instead of playing back a recording.