"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   56.61149
        63,   55.63224
       125,   48.36855
       250,   50.38414
       500,   65.17121
      1000,    68.9061
      2000,   54.81239
      4000,   48.82299
      8000,   31.25745
     16000,   25.13736