"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   60.69949
        63,   57.64858
       125,   49.92606
       250,   49.88575
       500,   55.77896
      1000,    50.4105
      2000,   51.13298
      4000,   52.67103
      8000,   37.68444
     16000,   30.17284