"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   56.36432
        63,    53.3717
       125,   46.88771
       250,   47.34509
       500,   54.65174
      1000,   60.30273
      2000,   52.22966
      4000,   50.99086
      8000,   36.65297
     16000,   25.02844