"Power Spectrum IEC 1/1-Oct Mag - dB volts "
      "Hz"      "Data"
        16,       -200
      31.5,  -47.60669
        63,  -45.77644
       125,  -55.46693
       250,  -58.68142
       500,  -43.71298
      1000,  -27.88307
      2000,  -50.56823
      4000,  -68.65526
      8000,  -70.02781
     16000,   -79.7606