"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   53.36423
        63,   54.88286
       125,   46.43337
       250,   44.57965
       500,   56.59849
      1000,   52.73754
      2000,    53.2085
      4000,   52.80618
      8000,   35.44442
     16000,   25.05384