"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   58.56719
        63,   59.10087
       125,   53.52288
       250,   57.58247
       500,   69.42745
      1000,   69.80741
      2000,   49.59628
      4000,   44.26482
      8000,   30.12856
     16000,    19.0575