T0 20[degC] "Ambient temperature"
pA 1[atm] "Ambient atmospheric pressure"
f0 10000[Hz] "Maximum frequency"
dvisc 0.22[mm]*sqrt(100[Hz]/f0) "Viscous boundary layer thickness at f0"
Vrec 0.1[V] "Receiver voltage (peak)"
PortName 1 "Port name"