% Pressure Derived Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 11 -4 6 -3 3 2 -4 6 -6 -7 3 3 8 5 -4 -3 2 -5 -4 5 6 -4 6 3 5 -6 -4 5 0 -7 -2 -4 -4 -6 -8 6 7 3 -4 9 4 4 9 -4 -8 13 6 -3 6 6 -1 -5 2 8 9 -3 -5 13 12 -8 8 -8 -1 -7 -7 3 -2 3 -7 11 5 -3 -6 7 9 9 4 1 -9 11 9 -5 -10 -10 -5 -8 7 -8 8 -6 -7 -10 -5 11 -6 1 -4 -6 18 3 -8 -4 -3 6 5 -2 4 -9 -11 -6 2 7 7 -4 -3 -8 8 8 -2 13 10 13 -6 -9 -6 -10 9 6