"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   54.14808
        63,   57.21744
       125,   51.22721
       250,   46.48271
       500,   57.37518
      1000,   54.35739
      2000,   52.79943
      4000,   49.65722
      8000,   38.12601
     16000,   24.77908