"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   55.85167
        63,   56.40173
       125,   45.92088
       250,   57.31959
       500,   72.12939
      1000,   70.80092
      2000,   55.94258
      4000,    46.3441
      8000,   37.25137
     16000,   22.84114