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