This module is an omnidirectional microphone with gain control, envelope extracter and gate output.
Compatible with 12V or 15V systems, PC mounted pots, but jacks are offboard.
For complete descriptions of the way the module is used, mp3 samples and how to build it, including schematics and parts list; download this PDF file.
Boards are available now. Price for 1 PCB is $8.
Unfinished eurorack
panels are available for this project, they are 8HP and cost $8 each.
There is
more information here about panels. If you're interested in drilling your own panel for
this project, feel free to use my
drill guide. That image should be printed at 300dpi for proper
scaling.