Bubble, a rising pop

Updated

A round bubble popping upwards.

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

Category
Arcade
Brightness (centroid)
576 Hz
Key press length
60 ms

What it imitates

Bubble plays a round bubble popping, with the pitch rising as it goes. Its centroid, 576 Hz, is the lowest of any Teclo pack.

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 Bubble next to Pixel and Marimba, 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
Bubble Arcade 576 60 8.7 +14.5 3%
Pixel Arcade 1,723 50 6.6 +5.5 13%
Marimba Night 713 120 17.3 +15.0 3%

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

Anyone who wants a playful, soft sound that is nothing like a keyboard (a suggestion).

Use it in Teclo

  1. Click the keycap icon in the menu bar to open Teclo’s window.
  2. Pick Bubble in the list of packs, under Arcade.
  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

Which Teclo pack is the lowest?

Bubble, with a centroid of 576 Hz. Marimba is next at 713 Hz.