"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   54.00783
        63,   59.08676
       125,   49.75022
       250,   57.04171
       500,   70.54065
      1000,   69.33297
      2000,   54.82153
      4000,   47.14038
      8000,   28.75453
     16000,   18.72506