threshhold (rms) duration (s) 0.000000000 0.007840206 0.300000012 0.005310726 0.600000024 0.004852110 0.899999976 0.004820196 1.200000048 0.004821378 1.500000000 0.004741002 1.799999952 0.004666536 2.099999905 0.004625166 2.400000095 0.004625166 2.700000048 0.004586160 3.000000000 0.004556610