Audio after demux going fast

[p_samimi]

HI .
my name is pedram.
i have a big problem that i was working on it about 7 days.
but cause i do not want confuse you ,i will tell you just this problem.
if your solution not help me i tell you a big story.
now problem :
i have a vob file that contain 2 audio stream and one video stream.
2 audio stream : 1--> 2ch stereo , 2---> 6ch (AC3)
when i play this vob file everything is ok.

now when i demux this vob file with "Rejig" or some another program or grab audio with "DVD Audio Extractor" i have two audio file that not working good.
it means when i play the audio files they are play very fast (like fast forward)
i try another vob files and another AC3 audio files and everything was ok (for cheking the codec)but this file confuse me.

but i did another work and i used "TMPGEnc 4.0 XPress" and demux that vob file and "TMPGEnc 4.0 XPress" just demux element audio stream (2ch) and in this situatrion audio is good !!!!!
but i want both of audio stream.

i try "nero vision" and make a new dvd with this vob but problem is nero use just element audio stream (2ch) .and after make new dvd and demux with dvddecryptor audio stream is good !!!!!!! (like TMPGEnc 4.0 XPress)
but i want both of audio stream.


now please tell me where is the problem.

for tell you a background ,this vob file is part of a dvd that dvddecryptor could not demux it very good.
especially on this chapter(this vob is chapter #13)

tnx for your attentions and helping each other.

[Baldrick]

You could try use ac3fix on the broken ac3 and see if it make any difference.

And try demux using other software also as like tmpgenc(under file->mpeg tools->demultiplexer) or pgcdemux or vobedit.

[p_samimi]

Tnx for your attentions.
I would try all of this program .but not working.
Just I could not use Ac3fix!!! (and I do not think this program can fix my file)
Anyway for better understanding I tell you my story.
Maybe after that you move this topic to another place

Ok .let go.
I take a dvd from one my my friend.
That was a concert (dvd9)
The dvd is very good and play correctly (17 chapter)
Just the dvd menu is very ugly and I think that is a re-authoring home user .cause the highlight is very ugly and no company do this.

Then I decided re-authore this dvd and split it to 2 dvds 5.

For this work, first I have to demux all chapter with some program (vobblanker,dvddecrypter,pcgdemux,and many another programsss…..)

DVDDECRYPTER:

Like anytime I used “dvd decrypter” and demux main vob to 3 files (Big Vob , 2 audio stream)
But result was strange.
The big vob file was smaller than I though .
After play the vob (without audio) I found out the dvd decrypter not extract all chapters!!!

Then I decided extract and demux every chapter one bye one.
Result : when I choose the chapter #13 , the program just extract about half of chapter!!

And another strage thing that is chapter 12 have 2 cells


VOBBLANKER:

Then I try vobblanker and then choose Video_Ts then I saw this page



I did the full scan but no better result.

Then I went go to the main movie section and see this strage page


All chapter until #14 is good but when I choose #14 (Chapter 13) it extract just a small vob (165 mb , 2.56min) like dvd decryptor while this chapter is 538 mb and 7:50min


And there was another strange thing.
This dvd have 17 chapters
And there are #18
And when I extract #17 & #18 , they are same !!!!
But I do not have any one of this problem when I play the dvd.

But when I play the dvd or when I play the vob in the dvd everything is ok.

MERGE& Cut :

Then I decided merge the vobs that are good with VOBMerge and then cut the big vob with Mpg2Cut2.

I did it and I cut manually all chapter .
Now I have to use this vobs for dvd authoring with a good program (DVDLab Pro 2)
2 options I had
1:use vob file and let the program demux and mux the file
Result:dvd that program create is very fast!!!! (like that problem I have with that sound)

.
2:demux this vobs with another program and import to dvdlab.
Result : the audio that created after demux is too fast and after import to dvdlab and make dvd this problem stay.

"about TMPGENC , i told you this program demux just Elementry audio but this vobs have 2 stream audio that i want both i them)

Now please tell me what the hell is this dvd and this problem.
I did all things more than 10 times but no result.

[manono]

DVDDECRYPTER:

Like anytime I used “dvd decrypter” and demux main vob to 3 files (Big Vob , 2 audio stream)
But result was strange.
The big vob file was smaller than I though .
After play the vob (without audio) I found out the dvd decrypter not extract all chapters!!!

When you used DVD Decrypter in that way (or PGCEdit), the demuxed audio was good, wasn't it? It didn't play too fast, did it? So you're saying the problem doing it that way is the video is too short? That it doesn't have all of the concert? How do you know that? Are you just playing the M2V file in a player and it's showing the length to be too short? Well, players don't give the correct length. The video is all there. Open the M2V in GSpot, wait a minute while it parses the entire thing, and then you'll see the length is the correct length. The video is all there.

You're making this way too difficult. If you want to reauthor, demux (I use PGCDemux), take the 3 pieces (M2V and 2 audio files) and do whatever you like with them. Me, if I wanted to create 2 DVD5s from this reauthored DVD, I'd split it after reauthoring it, using VobBlanker.

And another strage thing that is chapter 12 have 2 cells

There's nothing strange about that. The DVD has 17 chapters but 18 cells. Chapter 12 consists of 2 cells. I think this is probably related to the layer break, but I'm not positive.

Bamana Khoda.

[p_samimi]

Hi.tnx for your help.
but i am sure about that i said.
dvd decrypter just exract until middle of chapter 13.
when i play the movie that demuxed it going untill middle of chapter 13.
and the other way and easy way : size of files
i have 6.18 gb for this concert (without backstage) and that files the program demux is 3.83gb.



for not confusing you , better i tell you i get realy a dvd folder on the HDD.and please do not tell about bad sector or damage media.
and for using for dvd decrypter i make a image of DVD with Nero and mount it with virtual drive.

[manono]

Image with Nero? Why don't you do things like normal people? Put the whole thing on the hard drive (not as an ISO) and use PGCDemux on the concert. Isn't this the first time you've mentioned making an ISO first? Or did I miss it? Also, if there really is something wrong with the DVD structure, it might be worth running the DVD (on the hard drive) through FixVTS.

Isn't this all about editing the menu anyway? Depending on what you want to do to the menu, it may not even be necessary to demux. Exactly what do you want to do with the menu? Can my menu editing guide help at all:

https://forum.videohelp.com/topic313743.html#1606732

or are you doing something more complex, like shifting buttons, or creating different buttons?

Another thing you can try is demuxing the whole DVD using DGIndex. Open all the VOBs, and File->Save Project and Demux Video. That will give you the M2V and the 2 audio tracks (along with a D2V project file). However, it looks like the last chapter is reused. If you don't want it, use the ']' button to cut off the concert early, where it begins to repeat. Since you said you'll be reauthoring, that might not be a problem.

[p_samimi]

Tnx.
wooooooooooow.
i think DGMPGDec did it.
no sound fasting.
infact i told you i merge all vob and cut chapters manualy and had a problem with chapter 13.
now when i import this vob to DGMPGDec and demux it i have one video file and 2 audio without fasting.
i do not know why another program make the sound faster ?!!!

about your question : i make a iso file cause i wanted use dvd decrypter and this program just working with media (i used virtual drive)

and all this is about 1:change menu 2: split dvd 3: find the answer why this happend
cause i did this (change menu & Split) about 50 dvds and i had not any problem

i used before FixVTS and nothing help.
but my question is why there are a gap


i think all problem is here.

[manono]

but my question is why there are a gap

I think I already answered that one. There are 17 chapters and 18 cells (and apparently one of them is a repeat), with Chapter 12 consisting of 2 cells. That's not at all unusual. I'm glad you're making progress finally.

What I don't quite understand is why the chapter 17 is almost the same as chapter 16 and why it's being reused. Maybe it gets used in the extra, but I'd have to have the DVD to try and figure it out. Others with more knowledge than I might be able to figure it out from the pics you provided.

[p_samimi]

chapter 17 is almost the same as chapter 16

infact they are exatly same (do not look at time)
when i extract both of them and then play them , they are same.

Maybe it gets used in the extra

i know this chapter not use for extra, cause extra have a seperate vobs (2 vobs) that not navigate to this file.
VTS_05_1.VOB
VTS_05_2.VOB

anyway tnx for all your help.
plz tell me the result if you get more knowledge.

[p_samimi]

HI ,
i have two news.
good news : we did it and i make 2 dvds with menu and backstage and sound and everything.

bad news : second audio stream that show as a 5.1 (dolby) did not have any sound from center and rear speakers.

infact i do not have 5.1 speaker for my pc and after authoring and burn on dvd i tested it on my home theater.
i have not any sound from center and rear speaker when i choose this audio stream !!!!

i test my home theater with another movie and everything is allright.

when i choose this stream the lights of 5.1 on the digital panel of my player going on and show "3.2/1 dolby" but no sound !!!!! (just i have sound from two front speakers)

is it realy 5.1 or not.

[manono]

Did the original DVD's audio play with sound from the 5 speakers? And with different instruments coming from different speakers for a real surround effect? Maybe the original source audio was really stereo and it was duplicated for the other channels. If so, there's not really much point to keeping the DD 5.1 audio. Maybe there are 5 channels but 3 of them are silent/empty. DGIndex will give you back exactly what the audio is. It doesn't change anything. It does, however, sound like there may be something strange about this audio, if demuxing using other methods produced speeded up audio. Maybe the audio engineers for this DVD were incompetent fools. I've seen it before

You could try and open the VOBs in BeSweet and make 6 mono WAV files to see what's in the individual channels.

[p_samimi]

tnxxx man.
you are genius.
i extract 6 wav and funny result.
i have sound just from FL & FR.
rest of them are silent !!!!!!
i think you are right.who was author this dvd was fool.

i was suffer all this difficulty for keep this 5.1 audio stream !!!!!!!

at the first i could use nero for burn vobs or tmpgenc for demux and get elementary audio stream without any problem
but i think that was worth.i learnd many things.
tnx for all help.

[manono]

i was suffer all this difficulty for keep this 5.1 audio stream !!!!!!!

I chuckled when I read that. You're right - it was a lot of work for nothing, but you learned things that should help you in the future. Good luck.