"Power Spectrum IEC 1/1-Oct Mag - dB volts "
      "Hz"      "Data"
        16,       -200
      31.5,  -45.57197
        63,  -41.17481
       125,  -41.56233
       250,  -44.98525
       500,  -39.74498
      1000,  -45.67867
      2000,  -54.43705
      4000,  -62.41692
      8000,  -71.83013
     16000,  -81.99347