lower limit, 5, for t is defined here according to our experiment
results. Take the sentence, /na-2 bu-4 shu-1 ren-4 hə-2 zie-3 zyue-2
fang-1 an-4/, as an example. When the lower limit for t is set to 1, 3,
and 5, the speech segments automatically selected will be as those
shown in Fig. A, Fig. B, and Fig. C, respectively. From Fig. A, it can
be seen that several selected segments are of very short durations.
Also, there is still a difference in the selected segments between Fig.
B and Fig. C.