"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,     63.049
        63,   57.71307
       125,    48.7095
       250,    45.2345
       500,   57.70804
      1000,   73.01942
      2000,   45.87326
      4000,   34.30968
      8000,   32.21913
     16000,   21.89931