"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   58.69679
        63,   56.38024
       125,   48.90865
       250,   44.79443
       500,   57.09336
      1000,   51.09989
      2000,   53.96345
      4000,    45.9553
      8000,   31.53585
     16000,   20.65041