"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   55.71243
        63,   54.09127
       125,   41.03452
       250,   46.76525
       500,   63.38483
      1000,   66.25407
      2000,   43.92272
      4000,   33.84109
      8000,   18.32184
     16000,   17.65523