"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   54.25335
        63,   51.65549
       125,    46.0253
       250,   49.22482
       500,   68.27873
      1000,   70.13622
      2000,   56.87142
      4000,   48.76393
      8000,   28.35262
     16000,   22.65094