"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,    53.1355
        63,   57.32298
       125,   48.79541
       250,   56.88017
       500,   70.18934
      1000,   68.54303
      2000,   50.53749
      4000,   41.03555
      8000,    23.6943
     16000,     18.045