"Power Spectrum IEC 1/1-Oct Mag - dB volts "
      "Hz"      "Data"
        16,       -200
      31.5,  -42.65137
        63,  -41.44708
       125,  -53.56629
       250,  -60.72379
       500,  -41.19054
      1000,  -19.89817
      2000,  -42.66622
      4000,  -47.11695
      8000,  -58.41092
     16000,  -66.00738