"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   49.90388
        63,   57.35695
       125,   53.61889
       250,   44.81173
       500,   59.87731
      1000,   56.38291
      2000,    49.4518
      4000,   45.30325
      8000,   35.84813
     16000,   21.61848