"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   51.50181
        63,   49.75014
       125,   43.73208
       250,   58.05554
       500,   72.97778
      1000,   69.54979
      2000,   59.77514
      4000,   52.52478
      8000,   42.40456
     16000,   23.96823