"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   66.08543
        63,   59.71447
       125,   52.02401
       250,   48.21154
       500,   58.19232
      1000,   73.97969
      2000,   48.31232
      4000,   33.75294
      8000,    27.5639
     16000,   20.88811