527: interframe interval = 1/32.41 s  avg=1/25.67  stddev=1/31.75
  539: interframe interval = 1/26.57 s  avg=1/24.54  stddev=1/35.18
  539: interframe interval = 1/33.84 s  avg=1/25.18  stddev=1/33.37
  527: interframe interval = 1/30.74 s  avg=1/24.96  stddev=1/34.80
  539: interframe interval = 1/31.39 s  avg=1/24.84  stddev=1/32.69
  539: interframe interval = 1/29.57 s  avg=1/24.26  stddev=1/32.38
  527: interframe interval = 1/23.95 s  avg=1/25.37  stddev=1/34.72