"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   58.64305
        63,   63.85299
       125,   55.62931
       250,   51.31483
       500,   54.59604
      1000,   52.35524
      2000,   53.58166
      4000,   49.42386
      8000,   32.62876
     16000,   21.97719