Surface Calibration
H(s) = (s^2 + w0^2) / (s^2 + (w0/Q)s + w0^2)
w0 = 2 * pi * 440 = 2764.60 rad/s
Filter: Peaking (inverse notch) at 440 Hz, Q=2.00, +6 dB
Flattening surface vibrations by boosting resonance null