In this video I describe the mechanical and electrical design behind the keybeds in our synths. I take one apart to show the inner workings, then demonstrate channel and polyphonic aftertouch, showing the mechanism inside the keybed that makes each of these function. Lastly, I talk about the various types of problems and failures we commonly see in our keybeds, how to identify them, what causes them, and how to fix them.

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0:00 Intro
0:41 Mechanical Design
2:03 Disassembling the Keybed
2:31 Electrical Contacts
3:19 Velocity Sensitivity
5:02 Channel Aftertouch
6:18 Polyphonic Aftertouch
7:16 Aftertouch Mechanisms
8:30 Problems: Keys Not Playing
9:23 Problems: Inconsistent Keys
11:54 Summary

#Keybed #Keyboard #Synthesizer