"Power Spectrum IEC 1/1-Oct Mag - dB volts "
      "Hz"      "Data"
        16,       -200
      31.5,  -40.44373
        63,  -39.80386
       125,  -50.31133
       250,  -53.26106
       500,  -37.99094
      1000,  -21.41676
      2000,  -36.08488
      4000,  -50.62589
      8000,  -53.13944
     16000,  -63.69148