"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   58.94707
        63,   61.74419
       125,    51.6585
       250,   46.05707
       500,   55.96811
      1000,   77.68031
      2000,   57.22003
      4000,   40.30557
      8000,   38.42551
     16000,   25.87067