"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,    58.5788
        63,   62.12265
       125,   49.05038
       250,   44.43139
       500,   51.69014
      1000,   45.66117
      2000,   49.67172
      4000,   49.27493
      8000,   29.61266
     16000,    19.5585