hop
How many new samples arrive between the start of one window and the next.
The hop H is the stride between consecutive windows of length N; the overlap is 1 - H/N, and one feature vector is produced every H samples.
Examples
With N = 100 and a hop of 50, windows overlap by 50 % and a new feature vector comes out every 0.5 s.
A hop equal to the window length (H = 100) means no overlap: each sample is counted in exactly one window.
See also