"Power Spectrum IEC 1/1-Oct Mag - dB volts "
      "Hz"      "Data"
        16,       -200
      31.5,  -46.38781
        63,  -46.07763
       125,  -49.51205
       250,  -61.68709
       500,  -40.58465
      1000,  -37.74551
      2000,  -50.71544
      4000,  -60.62473
      8000,  -74.24294
     16000,  -76.35414