"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   55.32713
        63,   54.91874
       125,   49.76802
       250,   48.98283
       500,   58.53679
      1000,   77.02678
      2000,   53.73109
      4000,   38.46091
      8000,   25.14339
     16000,   20.98868