"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   61.55887
        63,   56.52874
       125,    47.1081
       250,   42.14959
       500,   44.94088
      1000,   44.25689
      2000,   51.37597
      4000,   37.91358
      8000,   29.68782
     16000,   19.45618