"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   55.77605
        63,   53.53076
       125,   46.95827
       250,    48.4875
       500,   64.08757
      1000,    61.6873
      2000,   47.44231
      4000,   38.27785
      8000,   19.94943
     16000,   17.89739