"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,     59.692
        63,   57.19085
       125,   51.55502
       250,   58.50066
       500,   72.67332
      1000,   70.38526
      2000,   57.62305
      4000,   49.16967
      8000,   36.90165
     16000,   25.22044