"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   59.02757
        63,   54.63455
       125,   51.36849
       250,   46.36629
       500,     57.491
      1000,   55.22274
      2000,   52.91029
      4000,   51.34144
      8000,   34.28226
     16000,   23.89528