"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   52.49472
        63,   54.35274
       125,   55.98146
       250,    58.4268
       500,   71.20005
      1000,   74.34207
      2000,   59.74218
      4000,   49.90666
      8000,   36.35107
     16000,   25.14998