No sound on some vobids within a pgc

[influenza]

Hi,

I've been working on this dvd that has a pretty complex lay-out for one of the vts sets. The vts contains 9 pgcs. besides the main movie there are some comments on certain scenes etc.

A lot of cells/vobids are used more then once through all the pgcs. So obviously i used dof4u to split everything by VOBID.

When reauthoring I left out one audio track and all the subtitles I didn't want.

When checking my project in a software dvdplayer I've some vobid without sound. I see the correct subtitles , but there's no sound. Within the same PGC other vobids, that represent a chapter do have sound.

I checked everything in scenarist, but the vobid has the audio tracks. I deleted the audiotracks and added them agian, with the same result. When playing the individual ac3 tracks for this vobid I hear sound.

I've added both the original and reauthored ifo. The problem is in PGC 5. The firts chapter has sound, the second doesn't, the third does and then the fourth doesn't have sound again.

Any help appre4ciated ofcourse.

[influenza]

I thought I could add attachments but I don't see how I used to do this :confused:

[oddyseus]

u can't post attachments in this forum the last couple of weeks.

As far as the sound problem is concerned, U have to tweak the value of audio stream used, in ifoedit/PGCITI section. Have a look at trilights tips and tricks to get an idea what the correct values r and how to use them.

The problem actually rises because of the distribution of the audio clips in Scenarist in each PGC.

Lets suppose that pgc 5 only uses audio stream 5, then i5t should reference only stream 5 in PGCITI/pgc 5, if by any chance references as well audio 1, 2 etc u won't have audio. U have to select it through the remote control.

If u haven't faced such situation before, I understand its difficult to follow. Just take a look at PGCITI and post back.

[influenza]

I've had lots of situations like this, so that's not the problem. I've tweaked the pgcity ofcourse. That's an almost standard procedure ;)

What is strange is that the pgc contains 5 chapters. All the chapters have an unique vobid. All these vobids are set up the same way:

audio stream 1: main movie sound
audio stream 2: director comment 1
audio stream 3: director comment 2

Still within the pgc there are chapters where the director's comments have sound and chpater's which do not have sound.

Manually changing the audio streams makes no difference (the right audio track is selected anyway, and no sound is played).

I cannot post the attachment, but the reauthored and original ifo are exactly the same. Except for the pgcity part where I corrected the values for both the audio and subtitle streams.

[oddyseus]

That is very intersting. I surely would like to study it.

Obviously the structure isn't exactly the same, otherwise u wouldn't had any problem, yet it is simple enough to give any problem. Yet again ther is one.

R the audio files OK?
Is there any cell post command that changes the audio stream up on finishing?

Right now that is the only reasons I can think of.

[influenza]

The audio files are ok. Played seperately everything's fine. But I would gladly send you the ifo files if you want to take a look

[oddyseus]

sure. Check your messages

[influenza]

I made a short clip with only the vobids that gave [roblems within the mentioned PGC. This short clip does have sound, so there's nothing wrong with the ac3 files I would say.

[oddyseus]

Well, the suggestion that maybe there were something wrong with the ac3 files was a logical one and had to be looked upon in order to exclude the possibility. Now u know that is definetly the ifo structure that doesn‹t work as it should be.

I have come across some titles that they didn‹t work correctly after reproducing the exact ifo cause the layout in the vob was slightly different than the original. This can happen to everyone due to the limited knowledge most of us have on programms like Scenarist and Maestro. In these cases u have to tweak the ifo a little.

[influenza]

Do you have any clue on where to look? Because I cannot find the source of the problem.

I've done lots of backups but haven't come across a problem like this. Which is kind of interesting ofcourse, but eventually I would like to find a solution.

Normally I find the solution with or without some help, but this one I haven't figured out yet :confused:

[oddyseus]

Sorry influenza, I am afrsid I can't be of any help without having a look at the files.

[influenza]

Since they are a little big to send I'll just leave it like this :sly:

Thanks for your time anyway.