"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   55.71906
        63,   56.61677
       125,    45.6763
       250,   56.83159
       500,   70.50053
      1000,    68.9194
      2000,   54.35376
      4000,   50.48372
      8000,   32.26924
     16000,   19.18403