Frequency Modulation Drum
Built
Version 1.0
About
My first drum machine was a Korg Volca Drum, a FM-based drum synthesizer. When Moritz Klein posted this design for a simple FM eurorack drum module, it brought me back to the sounds and textures of the Volca Drum.
Format
12HP
Width
1PCB
Boards
Inputs & Outputs
| Name | Signal type | Notes | |
|---|---|---|---|
| In | Trigger | Clock | Trigger |
| In | Accent | Control Voltage | Control voltage for accents |
| In | Pitch CV | Control Voltage | Control voltage for pitch |
| In | Decay CV | Control Voltage | Control voltage for decay time |
| Out | Output | Audio | Audio output |
Future improvements
The first module assembled just fine, but on the second one the square wave didn’t work (due to an improperly soldered capacitor) and the FM mode isn’t working (cause to be determined).
Build gallery
