15 pkt_pts=4480|tag:lavfi.silence_start=0
20 pkt_pts=6080|tag:lavfi.silence_end=0.384813|tag:lavfi.silence_duration=0.384813
75 pkt_pts=23680|tag:lavfi.silence_start=1.18756
100 pkt_pts=31680|tag:lavfi.silence_end=1.99538|tag:lavfi.silence_duration=0.807813
163 pkt_pts=51840|tag:lavfi.silence_start=2.945
199 pkt_pts=63360|tag:lavfi.silence_end=3.97138|tag:lavfi.silence_duration=1.02638
253 pkt_pts=80640|tag:lavfi.silence_start=4.75662
273 pkt_pts=87040|tag:lavfi.silence_end=5.45|tag:lavfi.silence_duration=0.693375
329 pkt_pts=104960|tag:lavfi.silence_start=6.27319
365 pkt_pts=116480|tag:lavfi.silence_end=7.28569|tag:lavfi.silence_duration=1.0125
428 pkt_pts=136640|tag:lavfi.silence_start=8.25106
455 pkt_pts=145280|tag:lavfi.silence_end=9.08156|tag:lavfi.silence_duration=0.8305
507 pkt_pts=161920|tag:lavfi.silence_start=9.83881