Editing Damping (section)

==Keyboard construction==
===PCB mounting===
[[Switch mount#Plate mount|Plate-mount]] keyboards hold the switches firm, and effectively amplify the sound of keystrokes. [[Switch mount#PCB mount|PCB-mount]] keyboards cut down on the sound by flexing, thereby absorbing the impact of keystrokes.

Some PCB-mounted keyboards can be further damped by placing rubber drawer liner underneath the printed circuit board.

===Damped plate===
Sound can also be damped with careful construction of a the switch-mounting [[Switch mount#Plate mount|plate]], and its mounting.

A ''gasket mount'' keyboard has rubber gaskets sandwiched in-between the plate and case top and bottom.
A mod for [[Custom Keyboard Construction#Tray Mount|tray-mounted]] keyboards for achieving a similar effect is to mount rubber O-rings on the standoffs that the keyboard "sandwich" is mounted to.

Some plates have slits cut to allow them to flex.

Brass and wood are known to have lower-pitched and thus more pleasing noise profile than materials such as aluminium and steel.

===Weight and solidness===
Many custom keyboard cases are made from thick solid metal, often with brass weights for extra weight.

Some modders have modded plastic cases by mounting reinforcing ribs at weak spots, that would otherwise vibrate.
Some modders have even put lead weights in the bottom.

===Sound-absorbing material===
Sound can transfer and reverb inside the voids of a keyboard case. Modders often fill such voids with sound-absorbing materials.
Most often, various kinds of foam or rubber are put at the bottom, and (if possible) in-between plate and PCB.

Soft materials have ranged from PE foam (packing foam) and EVA foam (craft foam, gym mats etc.) to Sorbotane.

Bitumen sheets have sometimes been placed in the bottom of keyboards, both to add weight and for its vibration-damping properties.