"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   55.99707
        63,   53.73826
       125,   47.71901
       250,   45.78985
       500,   56.71371
      1000,   72.66853
      2000,   46.52132
      4000,   34.85344
      8000,   29.71249
     16000,   24.06278