"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,    53.1205
        63,   52.06324
       125,   41.15786
       250,   49.83604
       500,   66.77293
      1000,   68.85913
      2000,   55.10416
      4000,   49.18895
      8000,   30.73565
     16000,   22.43872