"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   57.76522
        63,   58.26854
       125,   51.62502
       250,   44.56611
       500,   51.81645
      1000,   76.24396
      2000,   55.63224
      4000,    45.7663
      8000,   39.21729
     16000,   22.13001