"Power Spectrum IEC 1/1-Oct Mag - dB volts "
      "Hz"      "Data"
        16,       -200
      31.5,  -43.67556
        63,  -36.69476
       125,  -41.03338
       250,  -46.34484
       500,  -42.93028
      1000,  -26.45884
      2000,  -43.61507
      4000,  -55.34943
      8000,  -69.73391
     16000,  -75.58887