"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   56.89561
        63,   55.19814
       125,   46.88554
       250,   43.92628
       500,   49.85825
      1000,    50.8432
      2000,   44.83469
      4000,    43.0002
      8000,   33.83783
     16000,   19.69153