 4.45E-0010	  Ccush cm^5/dyne      Acoustic area=Pi*Sqr(3.5cm)
 1.54E+0005	   Rcush dyne-sec/cm^5
 2.07E-0008	   Cskin cm^5/dyne       ( leak path length = 1 cm )
 1.37E+0004	    Rskin dyne-sec/cm^5  0.1   0.2   0.5    1.0    2.0    5.0    10     20(leak diameter mm)
 1.61E+0001	   Lleak g/cm^4    2.0E1 5.0E0 8.0E-1 2.0E-1 5.0E-2 8.0E-3 2.0e-3 5.0e-4
 4.98E+0004	   Rleak dyne-sec/cm^5 7.3E5 4.6E4 1.2E3  7.3E1  4.6E0  1.2E-1 7.3e-2 1.2e0
 2.15E-0002	     Lcup g/cm^4     60 gram mass
 1.86E-0007	  Ccup cm^5/dyne  7e-5:100cm^3 volume Vcup/RhoC2
 3.25E+0003	    Rmat
 1.14E-0001	     Lmat
 4.33E-0009	   Cmat
 4.10E+0005	Rmat2
 8.58E+0000	Lmat2
 1.67E-0010	Cmat2
V51R Earplug (Webster and Rubin)
MIL-HDBK-759 12 Mar 1975 p.403
Freq(Khz) Mean_Gain(dB) StDev_Gain(dB) Note: -10dB Gain = 10dB Attenuation
0.125	-16.0	0.0
0.250	-17.0	0.0
0.500	-22.0	0.0
1.000	-23.0	0.0
2.000	-26.0	0.0
4.000	-28.0	0.0
8.000	-28.0	0.0
