"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   60.07104
        63,   59.18121
       125,   56.84729
       250,   50.30516
       500,   54.60735
      1000,   56.53239
      2000,   50.54751
      4000,   49.59649
      8000,   41.43063
     16000,   24.07641