"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   54.03117
        63,   54.86671
       125,   48.06755
       250,     45.056
       500,   51.81306
      1000,    47.2527
      2000,   47.95197
      4000,   48.95607
      8000,   30.22196
     16000,   18.57054