"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,    59.0603
        63,   60.04041
       125,   51.23742
       250,   48.66528
       500,   54.88062
      1000,    76.9157
      2000,   52.17062
      4000,   39.23492
      8000,   29.33771
     16000,   21.41439