"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   59.06718
        63,   63.95137
       125,   55.27982
       250,   49.17366
       500,   65.58399
      1000,   65.81246
      2000,   47.63604
      4000,    40.9198
      8000,   23.81138
     16000,   18.89571