"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   59.24413
        63,   58.45738
       125,   45.20878
       250,   40.39035
       500,   46.87468
      1000,   45.72371
      2000,   50.34561
      4000,   42.74574
      8000,   30.40769
     16000,   21.75845