"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   53.18383
        63,   51.54277
       125,    46.7197
       250,   56.58544
       500,   71.42403
      1000,    68.5756
      2000,   54.65887
      4000,   50.94944
      8000,   37.64025
     16000,   22.93176