"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   58.04172
        63,   56.33621
       125,   49.99766
       250,   44.05173
       500,    55.9225
      1000,   68.71269
      2000,    53.0608
      4000,   37.76197
      8000,   27.48104
     16000,   18.57494