"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   52.21713
        63,   57.43477
       125,   45.85577
       250,   49.62683
       500,   70.38988
      1000,   69.16695
      2000,   55.02592
      4000,   49.33474
      8000,   30.63855
     16000,   24.71936