f0 c0/1/h0 Frequency
c0 343[m/s] "Speed of sound"
R0 4*h0 "Evaluation distance"
theta0 15[deg] "Desired rotation of beam"
h0 0.3[m] "Horn height"
w0 h0 "Horn width"
L0 0.8*h0 "Horn length"
scaleMax 0.2 "Maximum displacement"
Rair 2*h0 "Air radius"
V0 1[V] "Driving voltage"
rSpeaker L0/2.2 "Speaker radius"
backV 10[cm^3] "Back volume"
meshsz c0/f0/6 "Mesh size"