"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   53.27664
        63,   51.01912
       125,   42.48952
       250,   48.98892
       500,   67.20619
      1000,   68.99056
      2000,   55.26435
      4000,   51.77226
      8000,   32.74711
     16000,   22.50803