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Keyboard expression is the ability of a keyboard musical instrument to change tone or other qualities of the sound in response to velocity, pressure or other variations in how the performer depresses the keys of the musical keyboard. Expression types include: Velocity sensitivity—how fast the key is pressed
Unicomp Model M with removed z key. The exposed buckling spring is visible. A buckling spring is a type of keyswitch mechanism, popularized by IBM's keyboards for the PC, PC/AT, 5250/3270 terminals, PS/2, and other systems. It was used by IBM's Model F keyboards (for instance the AT keyboard), and the more common Model M.
The technology of computer keyboards includes many elements. Many different keyboard technologies have been developed for consumer demands and optimized for industrial applications. The standard full-size (100%) computer alphanumeric keyboard typically uses 101 to 105 keys; keyboards integrated in laptop computers are typically less comprehensive.
Mechanical keyboards (or mechanical-switch keyboards) are computer keyboards which have an individual switch for each key. The following table is a compilation list of mechanical keyboard models, brands, and series:
In common use, the term "mechanical keyboard" refers to a keyboard with individual mechanical key switches, each of which contains a fully encased plunger with a spring below it and metallic electrical contacts on a side. The plunger sits on the spring, and the key will often close the contacts when the plunger is pressed halfway.
2 Mechanical keyboard switches for custom keyboards. 3 Future. 4 References. ... Key stroke lifespan Drop x Invyr Kailh Holy Panda [22] MX Type stem Tactile N/A 67 g
The piano action mechanism [1] (also known as the key action mechanism [2] or simply the action) of a piano or other musical keyboard is the mechanical assembly which translates the depression of the keys into rapid motion of a hammer, which creates sound by striking the strings.
Velocity sensitivity (or touch sensitivity) allows keyboards to mimic the sound variations caused by how hard a key is pressed. Cheaper keyboards offer basic volume control, while more expensive models replicate the tonal changes of acoustic instruments. This can be done with multiple sensors, multiple samples per key, or by modeling the sound ...