"IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,   7.151869
      31.5,   15.42386
        63,   27.43889
       125,   36.21281
       250,   38.21183
       500,   42.20975
      1000,    46.4287
      2000,   51.27613
      4000,   47.84261
      8000,   49.63385
     16000,   48.29381
