Search found 6 matches

by stevense23
Tue Oct 21, 2014 9:27 pm
Forum: TV Engineering
Topic: DTT issue
Replies: 0
Views: 1271

DTT issue

Hello, is there someone here who knows about ISDBT system? We are currently have a test broadcast issue. We provided a DTT head end to our client. Transmitter side is a different contractor. During integration and fire up of the transmitter an issue arose when the channels on the stb can't be viewed...
by stevense23
Tue Sep 30, 2014 9:33 pm
Forum: Digital Television
Topic: Video/Audio out of sync
Replies: 9
Views: 2407

Re: Video/Audio out of sync

BTW guys, Is there someone here who knows something about ISDBT system? I think most of you are on DVB/ATSC standards. Thanks!
by stevense23
Sun Sep 28, 2014 8:12 pm
Forum: Digital Television
Topic: Video/Audio out of sync
Replies: 9
Views: 2407

Re: Video/Audio out of sync

Hi all, audio now syncs with the video. I changed the PCR PID of the programs in the encoder just like what Jeff said. I think digital standards have the same concept when it comes to headend side? BTW, thanks for your replies! :)
by stevense23
Thu Sep 25, 2014 10:57 pm
Forum: Digital Television
Topic: Video/Audio out of sync
Replies: 9
Views: 2407

Re: Video/Audio out of sync

Thanks for this Jeff! Yes, the audio is out of sync with the video and I have 5 programs in 1 channel. So the PCR and video PID should be the same? This is my current PID settings. Is the Audio/Video sync off on all five streams? Yes all audio of the 5 streams is out of sync with the video. It has ...
by stevense23
Wed Sep 24, 2014 9:32 pm
Forum: Digital Television
Topic: Video/Audio out of sync
Replies: 9
Views: 2407

Re: Video/Audio out of sync

Thanks for this Jeff! Yes, the audio is out of sync with the video and I have 5 programs in 1 channel. So the PCR and video PID should be the same? This is my current PID settings. Program1 PCR 283 VID 289 AUD 290 Program2 PCR 284 VID 291 AUD 292 Program3 PCR 285 VID 293 AUD 294 Program4 PCR 286 VID...
by stevense23
Mon Sep 22, 2014 9:48 pm
Forum: Digital Television
Topic: Video/Audio out of sync
Replies: 9
Views: 2407

Video/Audio out of sync

Hi all, I'm a newbie in the field of digital broadcasting. We are currently broadcasting a dtt service based on isdbt standards in the Philippines. I changed some settings on the mux and encoder due to inclusion of datacasting service. It has audio and video but it has a 2 second delay. Some enginee...