"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   49.94246
        63,   54.65712
       125,   52.01398
       250,   49.77833
       500,    55.6188
      1000,   60.31656
      2000,   52.91901
      4000,   48.84212
      8000,   33.74443
     16000,   22.63007