"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   54.28336
        63,   54.37374
       125,   47.12666
       250,   56.86365
       500,   72.18288
      1000,   73.25157
      2000,   60.35709
      4000,   57.83303
      8000,   43.79046
     16000,   26.18541