"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   58.92826
        63,   56.87786
       125,   50.85254
       250,   56.85076
       500,   69.56381
      1000,   70.96804
      2000,   44.84812
      4000,   35.26211
      8000,   22.56089
     16000,   18.33875