"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   55.29154
        63,   52.66004
       125,   42.48725
       250,   46.46103
       500,    62.7547
      1000,   65.84322
      2000,   45.20666
      4000,   32.26044
      8000,   16.72989
     16000,   16.89045