"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   60.25516
        63,   61.24469
       125,   52.32303
       250,   58.52102
       500,   71.71674
      1000,    70.8132
      2000,   52.12144
      4000,   47.17851
      8000,   28.05505
     16000,   19.09732