"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   56.05913
        63,     55.186
       125,   48.86387
       250,   44.26873
       500,    54.6297
      1000,   50.71283
      2000,   51.48074
      4000,   49.00151
      8000,   37.26894
     16000,   24.71041