Hi,
We recently built Velleman MK139 clap switch for research issues. We’re wondering whether the microphone has an omnidirectional or a directional characteristic (cardioid, super cardioid). What we need is a super cardioid polar pattern.
In case we need to buy a different one, what’s the electric characteristics of the microphone – impedance, sensitivity, integrated FET or TET amplifier?
We very much appreciate your support.
B. Zielke
University of Technology, Berlin