"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   59.19369
        63,   55.31472
       125,   52.66771
       250,   47.67687
       500,   57.72873
      1000,   72.98008
      2000,   51.52279
      4000,   35.48735
      8000,   34.90408
     16000,   23.71557