threshhold (rms) duration (s) 0.000000000 0.016976915 0.200000003 0.012496398 0.400000006 0.009810479 0.600000024 0.008306007 0.800000012 0.007546293 1.000000000 0.007124562 1.200000048 0.006705822 1.399999976 0.006469533 1.600000024 0.006305028 1.799999952 0.006080703 2.000000000 0.005880306 2.200000048 0.005796558 2.400000095 0.005772630 2.599999905 0.005733747 2.799999952 0.005676918 3.000000000 0.005593170