"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   54.52478
        63,   53.31932
       125,   51.03962
       250,   57.63684
       500,   71.49938
      1000,   74.94573
      2000,   57.05338
      4000,   52.10053
      8000,   36.68831
     16000,   22.88783