[ J(i) = J(i-1) + \frac - J(i-1)16 ]
Where ( D(i-1,i) ) is the difference in packet transit times between packet ( i ) and packet ( i-1 ). speed test with jitter
Jitter is defined as the statistical variance of packet inter-arrival times. If packets are sent at perfectly regular intervals (e.g., every 10 ms) but arrive at intervals of 8 ms, 12 ms, 9 ms, 11 ms, the variation is jitter. When jitter exceeds the buffer capacity of an application, packets are either discarded or delayed, causing perceptible degradation. [ J(i) = J(i-1) + \frac - J(i-1)16