"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   55.21301
        63,    55.4244
       125,   48.25722
       250,   46.23032
       500,   54.67433
      1000,   53.15255
      2000,   50.27489
      4000,   43.22984
      8000,   30.67986
     16000,   22.77663