Hello:

I have read many posts referencing audio sync problems, and I just came to the conclusion that the problem seeing by my player, may be due to a step I did not take, when using head3ac, meaning that I encoded the audio file at 48 k, and not at 44k, and it is clear that the player does not like it:
* Video lagging audio by a 2 or 3 seconds
* blips clicks and other type of noises heard on the player

However, the sound is very clean, read no clicks, and there is no delay at all when playing the cd in the laptop....... Does that make sense at all? Will this create such a long sync problem?.
Neither the Cd, nor the actual files have the audio sync peoblem when played by Power dvd..... :?

Thanks

Totonho 03

.
.
I'm no audio expert, but I think that the only time where there is audio
sync issues is when there is a conversion going from:
* 48 downto 44 or
* 44 up to 48

but that if you convert your audio (like AC3 to 112kbits) from:
* 48k to 48k (like AC3's 384k downto 112kbits)

that there is no audio sync. I think thats how everything works thus far,
but I could be wrong. It's usually when you change the 48k downto 44k
or 44k upto 48K that things get screwy.

Perhaps if you used another MUXer converter like Lame or BeSweet, for
the Sample conversion, see if this cures your audio sync issues :idea:
Maybe :)

-vhelp

Yes it will :!:
An that's exacty the problem. You must downsample the audio to 44.1Khz in HeadAC3he. Not every DVD player likes 48Khz audio on VCDs ;)

-kwag

Thanks a lot kwag:
I guess that the Cyberhome does not like 48kz at all. I will try 44.1 kz tomorrow. Thank you for your response vhelp. Now I am going to sleep a bit earlier.
I also need to run defrag in my computer, and that takes a long time.........
Good night y'all

Totonho03

It probably does, but only if you encode MPEG-2 :)

-kwag

Hi!
I just wanted to thank you kwag for your EXCELLENT CQMatic! Last night I encoded "Daredevil". After 7 tries CQMatic gave me a CQ value of 62.6621. This morning I muxed the video and audio and ended up with a final size of 796MB. Perfect! :D That's just a 0.5% difference from the wanted 800MB. Thanks again!

Hi:
I have redone the audio with headac3he at 43.1 kz but the audio sync issue is still present.. The video lags about 4 sec from the audio.
These are my steps:
1.- dvd decrypter, Disney cartoon movie
2.- dvd2avi, choosing the main film vobs, deleting the menu vob. Used Force Film
3.- Run headac3he, to obtain an mp2 file at 44.1Kz
4.- Encoded d2v file directly from dvd2avi. Avs script was not used.
5.- Mux the video from Tmpgenc with the audio from headac3he using BBmpg. VCD settings, as per Red-m's guide
6.- Checked the bbmpg mpg output with Power dvd, no problems
7.- Checked the cd with PowerDVD, no problem.
7.- Checked the cd at the Cyberhome unit, and both cds, one with 48Khz and the other with 41.1 khz audio, show video lagging audio by as much as 4 seconds

Any suggestions on how to do this, the correct way, will be appreciated.

Thanks

Totonho03

Hi totonho,

What Cyberhome model do you have :?:

-kwag

Hello kwag:

I have the Cyberhome ch dvd 300. I used 528 X 480 res. One thing that I did not do, was to check this player with the cd test, I took it for granted that this resolution would play ok. ....The video looks good...........and the file size went down a bit when encoding the audio at 44.1 khz.
I have backed up this dvd with dvd2one, with no sync problems at all....


Thanks and regards

Totonho03

I use KDVD with my Cyberhome500 due to motion problems with other resolutions. The player will play miniDVD without any problems.

Thank you for your response nicksteel.
I am trying to work myself to minidvds. But first I like to be able to do back up using the kvcd method.just recently, like a couple of days ago, was able to burn the kvcd in question. Good video, but the audio is out of sync. My next project is going to be kdvd, using vmesquita method and cce......but I better hurry because the CCE 2.66 trial ends in 28 days...

Regards

Totonho03

Hi Totonho03,

I have that same DVD player, and my KVCDs play fine at 528x480 :!:
No video/audio sync issues.
Could it be your firmware rev :idea:
I don't know if the Cyberhome's firmware can be updated :roll:
I did have a problem with the first unit we bought. Every DVD we played, would freeze a couple of times in the movie. This happened with KVCDs and DVDs. I took it back to Radio Shack, and changed it for another unit (same model)
No more problems :!: I had a faulty unit :cool:

-kwag

Thanks kwag.

My unit plays dvds with no problems at all. It even play some vcds that I purchased in Manila, with no problems. What I could do is to play the cd test and check it that way. I suppose that I can always exchange it, but the basic question remains: Am I doing something wrong? Are the steps that I am taken correct?
I am going to experiment once again with a different movie and will post the results. (Short clips at deifferent resolutions)

Regards

Totonho03

P.S.- I will also check to see if there is a firmware rev somewhere......

Hi totonho,

Your steps are correct. Coult it be the CD-R brand you are using :?:

-kwag

Thanks kwag:
I am using TDK CD-Rs, I will use a Sony CD next, but before I will run some other tests........If I find the same problem, I will exchange the unit.......

Regards

Totonho

Perhaps I will venture into the minidvd arena, but like someone said someplace here, not very many players accept such format...Oh well, as I
ask before WHY ME?.... It looks like everytime I attempt something it goes wrong........I will not quit, will keep on trying.....

Update:

I just finished testing about 5 minutes of "tears ", this time I used dvd2av2 1.77.3 and the result is as follow:

1.- The audio was a bit out of sync, with some cracling noises ,using 48khz
2.- The audio was perfect with 44.1 khz. Towards the end of the clip I saw heavy pixelation, but this pixelation was also present when I run the cd in the laptop, therefore, the problem was not in the receiver. :D
It appears that the audio sync problem, in my case, was traced to dvd2avi v 1.76. I will confirm this some other time. What I need to do is test the Disney movie with v 1.773, as well as some other clips...........

Thank you for the help

Totonho03

Last report of this a.m.
Tarea cumplida, work performed.....I no longer have the audio sync problem. I went back to the Disney movie, and used dvd2avi 1.77.3, changed the audio to 44.1 khz, and no more video delays in the clip. :D
I am going to sleep now.

Thank you all

Totonho03

Hi Kwag..

All of the sudden, a :lightbulb: lit up over my shoulders while I was just
starting out my CQM v1.1.12a testing :) (now on 5th pass) and I for some
reason, I only JUST GOT THE CONNECTION I don't know :screwy: w/ the
2 plus 2 scenario of Aug 11'th "Matrix" testing dissaster.

Get on with it..

Yes, found out why it was giving me really bad problems. Turns out that
my dvd2avi was screwed up. Yeah. somewhere's in the begin to mid,
and randomely in other areas, "scenes would repeat itself" like as if I had
press the "repeat" button for a given scene. Like 1 second repets. And
this would go on through the movie. I'm realy sorry for the screwup and
causing you any bad taints during that days testing. Yes, it was really bad.

So, how did I find this all out ??

It was in one of my PDVD playing, that I coutht it. The scenes in the sample
that CQM made had shown me those "repeats".

So, I don't know what could have cause the faullup w/ the "Matirx" dvd2avi
.d2v file, but that was where I traced it. And, when I broght the .d2v file
back into dvd2avi, it was actaully showing me the screwup.

So, there have it. How it all begain. One suggestion to how it may have
came about is HOW LONG it took to dvd2avi to a .d2v file. In fact, come
to think of it, "Red Planet" was the same thing. It took an hour+ to complete
the .d2v file. I remember these two being SOOO LONG. Anyways, now we
know what the cause was. Can you deduce what CQM was doing, (and
having the hard time "prediting" things) with the "Matrix" now ???

So, what do you think.. that I'll get a better "Matrix" predict, if I try it out
again ??
I'm only afraid that I'll have the same problems w/ "Matrix" screwing up on
me in the .d2v file. If I can only know in advance if it's gonna hapen again,
w/out going through the whole process.

Well, maybe others here have had similar issues, but NEVER knew it, and
that my bringing it out into the open, it might help others too, in is situation.

I don't know about you, but this was great news to me, when I found this out
today (just now) !!

It means, I have a second chance w/ "Matrix" hehe..

:hopline:

Oh, and sorry for the LONG post here :)
And, thanks for listening :) :)
-vhelp

vhelp:

Which version dvd2avi were you using? And how did you resolved it?
Thanks

Totonho

@ Kwag..

I just finished my First testing of your lastest CQM v1.1.12a on my DVD
title "Blue Streak" - - great movie. Anyways..

I was a little annoyed at first, but then reasoned that this is CQM's operation and is normal :)
..that it crawls on those last CQ values ie. below and note the bold:

52.5
71.25
80.63
85.31
87.66
88.83
89.41
89.71

And, so a :lightbulb: lit up (again) and I thought, hey, why not add in a
feature ( there I go again, hehe.. ) that allows a user to push the CQ a
bit higher. Given the above, at CQ 85.31, I could have bumped it up to
say, CQ 89, thereby saving myself 4 LONG passes !!

Ok, after doing many of these tests, I concluded that its easy to deduce
when to (or not to) bump up the CQ value (manually)
Ok, the first clue is when you notice how the CQ jump just a few notches
(no, not the "matrice" notch hehe) and these are usually just a few CQ
digits. This is our que !! ..to bump up the notch. I realize that this could
be a "user" descrision/descision.

So, what do you think about that ??

-vhelp