"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   55.38434
        63,   53.83355
       125,    57.9136
       250,   46.11635
       500,   56.96243
      1000,   76.74708
      2000,   53.18663
      4000,   41.29272
      8000,   31.76348
     16000,   22.01995