Sync prob with stream from Dreambox DM500T

[ankan]

I have sync. problems when I convert my recorded .ts to MPEG. I heard about this nice program at a Dreamboxforum and gave it a try to see if it could do the job. But I'am sorry it didn't. But I got som good info (I guess) from the logwindow about the conversion.
I used DVR-Studio Pro 1.08 Beta 5.

I got alot of invalid audio frames as you can see and lots of sequence errors. What can I do? will this problem be fixed in later version?

It works great to playback the .ts file without any sync problem. So why do I get sync problems when I convert it to MPEG? And what to do about it?

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This is just a smaller part of the whole log.
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Detected TS packet sequence error @0x00000000 66BFC6A8
Found invalid audio frame @ PTS 18:07:41,262
Found invalid audio frame @ PTS 18:07:41,286
Found invalid audio frame @ PTS 18:07:41,310
Found invalid audio frame @ PTS 18:07:41,334
MPG Audio PID: 0404, PTS: 0h33:58,111
Padded missing sound frame(s): 96ms!
Detected TS packet sequence error @0x00000000 7D103824
Detected TS packet sequence error @0x00000000 7D982E94
Detected TS packet sequence error @0x00000000 7E2025C0
Detected TS packet sequence error @0x00000000 7F3011E4
Detected TS packet sequence error @0x00000000 7FB80854
Detected TS packet sequence error @0x00000000 80060160
Detected TS packet sequence error @0x00000000 800701D0
Found invalid audio frame @ PTS 18:16:21,270
Detected TS packet sequence error @0x00000000 8007057C
MPG Audio PID: 0404, PTS: 0h42:38,671
Too many missing sound frame(s) detected! 576ms
Dropping corresponding GOP
Already Dropped GOPs! 640ms
Video PID: 0405, PTS: 0h42:39,040
Dropped GOPs! 0ms
Detected TS packet sequence error @0x00000000 AB6CF6E4
Detected TS packet sequence error @0x00000000 AC44E580
Detected TS packet sequence error @0x00000000 AC79DFF0
Detected TS packet sequence error @0x00000000 AC94DFE0
Detected TS packet sequence error @0x00000000 AD84CF00
Found invalid audio frame @ PTS 18:33:26,262
Found invalid audio frame @ PTS 18:33:26,286
Found invalid audio frame @ PTS 18:33:26,310
Found invalid audio frame @ PTS 18:33:26,334
MPG Audio PID: 0404, PTS: 0h59:43,111
Padded missing sound frame(s): 96ms!
Detected TS packet sequence error @0x00000000 ADBCCB10
Detected TS packet sequence error @0x00000000 AF4DFE20
Detected TS packet sequence error @0x00000001 0D680F98
Detected TS packet sequence error @0x00000001 0EADF968
Detected TS packet sequence error @0x00000001 112DCD24
Detected TS packet sequence error @0x00000001 11CFC104
Detected TS packet sequence error @0x00000001 1205BD38
Detected TS packet sequence error @0x00000001 133DA748
Detected TS packet sequence error @0x00000001 15C579B8
Detected TS packet sequence error @0x00000001 16B56A50
Found invalid audio frame @ PTS 19:13:03,054
Found invalid audio frame @ PTS 19:13:03,078
Found invalid audio frame @ PTS 19:13:03,102
Found invalid audio frame @ PTS 19:13:03,078
MPG Audio PID: 0404, PTS: 1h39:19,855
Padded missing sound frame(s): 48ms!
Detected TS packet sequence error @0x00000001 16FD6484
Found invalid audio frame @ PTS 19:13:13,182
Found invalid audio frame @ PTS 19:13:13,206
Found invalid audio frame @ PTS 19:13:13,230
MPG Audio PID: 0404, PTS: 1h39:30,007
Padded missing sound frame(s): 72ms!

Synch Summary:
Skipped or missing Video Frames: 720ms
Skipped or missing Audio Frames: 1032ms
Runtime Summary:
Total video runtime: 1h40:09,160
Total audio runtime: 1h40:09,047

Pass 2: remuxing
===========================================

Video stream info:
Average bitrate: 4.855 MBit/s
Peak bitrate: 6.159 MBit/s

Multiplexing OK: no Buffer underflow
Multiplexing finished!
Done, 2225s

------------------------------------------------------------------------------

[Kimi]

@ankan

I think there is no way to fix this. The stream contains duplicate or missing MPEG-Packets and checksum errors in audio packets. SAT-receivers can ignore this and skip over such sections. But DVD-Players would just stop playing anything at that point. So we have to remove those pieces. If there are too much of them synch will be lost.

Please try a recording from a totally different network.

[ankan]

Why can I play it on my computer (in .ts format) without any problems when I cant convert it? Why not just replace the missed audiopackages with emty ones? I don't think it will be noticed.

[Kimi]

@ankan:

Why not just replace the missed audiopackages with emty ones?

That what the software does, if it's not too many of those frames.

But playing a stream with some dedicated TS player is easier than demultiplexing and synching in such a way DVD-players will be able to play it. It's not "just store what you would play". There are differences between TS and DVD-MPEG.

You can send me a sample of this recording with this tool:
http://www.haenlein-software.com/HS/dow ... Sample.zip
make sure the error happens with the sample, too. Else it will be of no help.

And please try some recording from a totally different network (free-TV, no AC3).

[tomts1]

@ankan:

Why not just replace the missed audiopackages with emty ones?

That what the software does, if it's not too many of those frames.

But playing a stream with some dedicated TS player is easier than demultiplexing and synching in such a way DVD-players will be able to play it. It's not "just store what you would play". There are differences between TS and DVD-MPEG.

You can send me a sample of this recording with this tool:
http://www.haenlein-software.com/HS/dow ... Sample.zip
make sure the error happens with the sample, too. Else it will be of no help.

And please try some recording from a totally different network (free-TV, no AC3).

Hi,
Source: Dreambox TS with 2 audiotracks (Hun + Czech)
1) TS playback is OK (Dream + PC)
2) DVR Pro - conversion result OK
3) 2. Audio-Spur is out of sync in Demux and VIDEO_TS dirs.
4}WMF, NeroShowTime, WinAmp plays 2. audiotrack BAD (full video or Demux 2-audiotrack file only)
5) Arcade, TMPEnc ... works fine on the same DVR Pro file outputs
T.S.

[twilight]

HI.
I'm using DVR-STUDIO PRO V1.15 with DREAMBOX 500S and having same problem.
I played .TS file from Windows Media Player works fine but audio is out of sync from demux .MPG or .VOB file that converted from DVR Pro V1.15.
any suggestion ?

[Kimi]

What TV-channel is this recording from? does it happen with all recordings?

[twilight]

What TV-channel is this recording from? does it happen with all recordings?

yes. any channel.

[Kimi]

And what channels are these? If they belong to the same provider, then all channels might have the same problem.

[twilight]

And what channels are these? If they belong to the same provider, then all channels might have the same problem.

I don't still understand why Windows Media Player plays perfectly this recording without sync problem. Why ?

[Kimi]

me too ... There is an "audio-delay" feature on the 2nd page of the DVD-Wizard. Just right-click over the audio-track you want to correct the delay.

[phil32]

I have also a sometimes files with audio out of sync.

I get the following message:

First Video PTS is 0:02:51,080
First Audio PTS is 0:02:51,220
Stream has VBV_Delay of 562ms

My question is when I create the MPEG file or the m2v and mp2 files with DVR studio, is the delay applied?

I have seen above that you can apply a delay with the version pro of DVD, is this working OK?

I now use IFOedit to create a DVD and I apply the delay there but if it is easier with DVRstudio pro, I am willing to upgrade.

[Kimi]

@phil32:
yes - the delay is compensated as written in the online help. The mentioned "audio-delay" option in the DVD-wizard also states that the delay is compensated automatically. Only use it if you are absolutely sure that this automatic correction doesn't work.