hobby #112
Piezoelectric Contact Mic Building
Constructing ultra-sensitive contact microphones from piezoelectric discs to capture vibrations directly from surfaces — turning tongue drums, wooden boxes, metal railings, and window panes into sound sources. The microphones bypass air entirely, revealing acoustic worlds inaudible to the ear.
Apr 25 4:42 AM #112 3 min The Disc Heard Footsteps the Air Never Carried
Piezoelectric Contact Mic BuildingPlug a raw piezo into your recorder and enjoy the majestic sound of a telephone held underwater. One transistor fixes everything.
code-a-day tied to this hobby
- Waiting for the Rattle to Settle Debouncing