"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   58.83368
        63,   61.30069
       125,   53.90306
       250,   41.55955
       500,   56.54248
      1000,   50.39955
      2000,   50.50629
      4000,   53.21397
      8000,   31.34759
     16000,   23.94813