"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   62.20519
        63,    64.4898
       125,   54.25874
       250,   50.60919
       500,   70.65461
      1000,   67.42602
      2000,   56.33591
      4000,   49.77992
      8000,   41.10415
     16000,   34.61427