"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   56.69666
        63,   58.49644
       125,   48.14856
       250,   51.49465
       500,   68.31342
      1000,   71.41763
      2000,   55.32991
      4000,   48.18321
      8000,   31.05647
     16000,   25.96852