"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   56.06429
        63,   56.73864
       125,   52.55177
       250,    50.2132
       500,   57.42728
      1000,   70.68472
      2000,   50.93634
      4000,   38.84502
      8000,   37.19875
     16000,    23.7409