"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   55.95583
        63,   52.51402
       125,   44.84372
       250,   57.86025
       500,   70.93552
      1000,   69.80324
      2000,   55.50642
      4000,    50.1422
      8000,   36.71622
     16000,   20.56828