"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   59.48014
        63,   60.23253
       125,   62.33409
       250,   58.47968
       500,   70.71311
      1000,   69.01411
      2000,   54.51802
      4000,   50.52292
      8000,   35.78147
     16000,   19.07293