"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   51.96985
        63,   51.88075
       125,   43.95058
       250,   34.96239
       500,   58.32662
      1000,   55.76348
      2000,   47.59227
      4000,   51.77813
      8000,   41.70382
     16000,   27.18285