Editing Vibraphone (section)

===Damper mechanism===
For the first few years of production, the original Leedy vibraphone did not include a mechanism for [[Damping (music)|damping]], or stopping, the sustaining tones. In 1927, the J.C. Deagan company introduced a pedal mechanism that has not changed substantially since. A rigid bar beneath the center of the instrument is pressed upward by an adjustable spring and engages a long felt pad against the sharps and the naturals. A foot pedal lowers the bar and allows notes to ring freely; releasing the pedal engages the damper and stops any vibrating notes. One common flaw of this damping mechanism is that the bar is often supported at one point in the middle, causing it to damp the instrument unevenly in the upper and lower registers. To combat this, some manufacturers have made silicone- or liquid-filled damper pads whose fluid shape can conform evenly around the bars.<ref>{{Cite web |last=Walker |first=James |date=2001 |title=Vibraphone Pedaling |url=http://www.malletjazz.com/lessons/vib_ped.html |access-date=27 August 2020 |website=MalletJazz}}</ref><ref>{{Cite web |last=Ludwig-Musser |date=April 2001 |title=M58/M58M Piper Vibe (User's Manual) |url=https://www.ludwig-drums.com/application/files/8414/6419/9031/M58.pdf |website=[[Ludwig Drums]] |page=5}}</ref>