June 5, 2014
Mikrophonie is a very simple contact mic module. There is a small piezo disk mounted behind the 4hp panel, or you can plug in an external mic (they’re very easy to make).
UPDATE: Full documentation here.
The panel is PCB with no soldermask. The raw PCB fibreglass has quite a nice rough texture – rubbing it with a finger or a plectrum creates quite a wide range of sounds. The back of the panel is plated and grounded for shielding.
The mic will also pick up all the physical sounds in your modular – patching, cables rustling, switches, fingers on knobs – without picking up airborne sounds i.e. the sound your modular is making. At very high sound levels will pick up vibrations from the speaker output and start to feedback.
I’ll be posting the full plans / schematics / eagle files in the next few weeks, but here are a few samples and videos as a teaser from ace beta testers Leafcutter John, Robin Rimbaud (Scanner), Jez Riley French (Contact mic / hydrophone guru).
Here’s a recording with the contact mic picking up modular sounds, feeding back through the Makenoise Echophon
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