"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   62.65197
        63,   54.22019
       125,   53.12682
       250,   45.50089
       500,   56.02336
      1000,   63.12746
      2000,   47.88596
      4000,   40.80289
      8000,   31.82067
     16000,   26.95213