Piezoelectric disk as contact microphones

And again inspired by Nicolas Collins’s book “Handmade Electronic Music: The Art of Hardware Hacking“. Simple selfbuild contact microphones from cheap piezo elements. A piezoelectric disk generates a voltage when deformed. There are used in acoustic guitar mics, toys as buzzer and all kind of contact mics. Good thing is that there create enough voltage to be directly connected to recording device. Piezoelectric disks tend to transmit really high frequencies from the surface connected to, so I covert them in “Plasti Dip”.

Different “naked” piezo elements

Piezo Mic clamped to a fence wire

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