"IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,  0.8976057
      31.5,   11.95435
        63,   24.18696
       125,   33.41851
       250,   33.78333
       500,   33.02397
      1000,   35.97892
      2000,   37.22018
      4000,   32.73026
      8000,   30.88879
     16000,   29.55843
