"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   52.60788
        63,   53.49179
       125,   48.10537
       250,   42.44296
       500,   55.26261
      1000,   48.78291
      2000,   40.99859
      4000,   39.52129
      8000,    22.3052
     16000,   17.08258