Audio sync issue...

[Black Lab]

The answer to this may go back to a post several weeks ago. The sync issues seemed to happen after the patches were installed on VS8. On the recommendation of that post I reverted back to the original VS8 (minus the patches) and my sync issues have been resolved.

[aconnell]

Unfortunately this doesn't appear to be an issue with Ulead as I have the same problems with Roxio's Easy Media Creator. Just wish someone had an idea of what to look at... I'm already venturing into the WinXPSP2 groups and will post anything I find.

[thecoalman]

I think the issue is that your capturing to MPEG, to be frank I wasn't even aware that it was possible to pause a cam midstream until I read it here. I asked someone about doing this and if it would have any aafecxt on the audio sync, here's his reply.

Well I wasn't even aware you could do this, but there encoding directly to mpeg from a digital cam. Apparently when the buffer hits the point where it can't keep up with the input from the cam it pauses the cam midstream until it catches up.

MainConcept 1.4.2 in capture mode uses this tech, but it has flaws. MPEG quality is "active encode 100% software" and not as good, requires HUGE CPU resources, and then may suffer from buffer issues.

and

Actually, ULEAD uses the MC engine too.

So is anyone capturing to DV-AVI experiencing these same sync issues I believe I asked this before and still no answer Is everyone experiencing them using this method of buffereing the video

[aconnell]

I have had some issues with DV-AVI as well, but it's not nearly as bad.

I capture DV-AVI when I can and use that when I build my home movie DVDs. But when I have an MPEG2 source that I'd like to archive to DVDs, the audio sync is a big issue.

I have tried using GraphEdit to split out the A/V into seperate streams, and then combine them using a muxer and dumping the results to MPEG... I haven't found a filter that will dump to AVI though. This process works great for MPEG2... the resulting MPEG2 file I create has no sync issues UNTIL I run it through VS8 (or Roxio EMC7 for that matter) to build a DVD.

Case in point: TivoToGo allows you to transfer .tivo files to your PC... these are MPEG2 files encoded with a password. I can remove the DRM and get an MPEG2, but recording it to a DVD is causing problems. *** I am not doing this for distribution... I'm doing this ONLY for my personal use as I already have a few $$$ of dollars invested in A/V software and don't care to drop another $30-50 for Sonic whcih TiVo endorses.

However, .Tivo files are not my only source MPEG2 files...I have others that I'd like to archive that are pure MPEG2 files.

I'd even be up to using another filter in graphedit to convert the MPEG2 -> AVI using the same method... my challenge is that I'm not as familiar with the filter technology so I can't determine which filter will dump to DV-AVI from MPEG2

[GeorgeW]

it's supposed to pause and restart without glitches, but I've heard many experience a slight hiccup in the final captured mpeg. it works better when capturing from a dv tape, rather than when capturing from a device that is converting an analog source (see reasons here)
http://phpbb.ulead.com.tw/EN/viewtopic. ... ght=buffer

I agree that it appears the audio-sync issues come up alot more when the user is dealing with source videos other than dv .avi (i.e. could be mpeg, could be divx/xvid, etc...).

dv type-1 files seem to have less reports of sync issues -- I think I've also seen issues with longer dv .avi Type-2 files (greater than 20 minutes) -- because the audio is redundantly stored in the captured dv .avi file, and the process to capture to type-2 isn't perfect the longer the capture goes. Type-2 also takes a little more horsepower, so if your computer is "on-the-edge" of capturing dv .avi's without dropped frames, then try dv type-1 to see if it helps...

[jchunter]

Lots of people have reported OOS problems with AVI files. That is one of the main reasons why Type I capture is recommended.

As for mpeg capture causing OOS, I have a dozen counterexamples that exhibit perfect A/V sync.

The OOS problem is extremely serious because it affects every VS user. Ulead *somehow* lost the recipe. They should have assigned an emergency development team to figure it out! Instead, they are telling users to reinstall, defrag, etc. etc., which just wastes our time. One of them told me they were waiting for us to figure it out.....
John

[stephen]

I have wasted quite a lot of DVDs and am still plagued by out of sync audio. I have tried a number of different ways of doing things including editing with VS8, saving to file and burning with Nero - still has OOS problem. I thought it would be easier to transfer Video to DVD than this. Has anyone had any success with a different software package as I am about fed up with VS8?

[thecoalman]

I have wasted quite a lot of DVDs

Use RW's until you get it right.

[Rends]

Well i don´t have any problems with audio out of sync problems and VS8.
I remember that i had it one time with VS7 and directly captured mpeg2 TVmovie with mpg sound and editing afterwards (i deleted some comercial breaks)
But since then i capture/save my videos with PCM instead of mpg sound and never ran into out of sync trouble anymore.

Rends

[frankhad]

I have wasted quite a lot of DVDs and am still plagued by out of sync audio. I have tried a number of different ways of doing things including editing with VS8, saving to file and burning with Nero - still has OOS problem. I thought it would be easier to transfer Video to DVD than this. Has anyone had any success with a different software package as I am about fed up with VS8?

As thecoalman suggested, you might try burning to a rewritable before you commit a project to the permanency of a write-once DVD+R.

Based on what I've been reading here, elsewhere and through much trial and error, I've finally found a process that's eliminated the out-of-sync problem I, like so many others, have had using UVS8.

Since I'm capturing analog (cable) TV programs and trimming only the commercial ads from within the video, I'm not truly editing in the purest sense of the word. Nontheless, I still had sync problems with UVS8, particularly during that last process in Share mode; the process that creates the DVD files and/or burns to DVD.

After literally days of trial and effort, I took the advise of another who posted in an earlier thread on this forum and installed a trial version of VideoReDo which I now use to trim commercial ads and prepare (render) the trimmed MPEG for authoring. While I continue to use UVS8 to author (i.e create chapter points and a title menu) I make sure the option to render (SmartRender) is turned OFF when I add the video in the Share mode. Since this final UVS8 rendering process is where all the OOS problems seemed to be created, I simply do not want UVS8 to re-render the video.

I know there are other authoring programs I might use, and will probably migrate to one of them in due time. For the moment, I've spent so much time trying to get just one good in-sync burn, I have no urge to purchase and learn another piece of software. But, sadly, I can see my days as a Ulead customer as waning. (I started with UVS6.) Learning about video is neither an easy nor a simple process. But, if I'm going to spend the time, I'd much prefer to devote that time and effort toward learning rather than trying to figure out how to repair and work around a piece of software.

f

[stephen]

To be honest the cost of the DVD is not really the issue - it's the hours of wasted time and my wife moaning at me for spending my life in front of the computer!!

I have just removed VS8 from computer and reinstalled it - always worth a go!!

I will try to burn a disc with smart render turned off.

Also interested re comment on using PCM instead of Mpeg sound - don't really understand the difference betwen these but could be worth a go.

I must admit that of all the video editing software I have looked at VS8 seems to offer what I want - if it worked it would be fantastic!!

I don't understand why Ulead have not come up with a definitive answer?

[Merlin]

Here's my findings on the matter, I had posted this yestuday in the Movie Factory forum.

I had been using VideoStudio 7se and MovieFactory 2se without any synch issues for months. After I upgraded to VideoSudio 8 and MovieFactory 3 I had synch problems using both versions of VideoStudio and MovieFactory.

I restored my computer to a point before having installed VideoStudio 8 and MovieFactory 3 and was able to burn without synch problems with both VideoStudio 7se and MovieFactory 2se.

Next I reinstalled VideoStudio 8 and MovieFactory 3 WITH OUT ANY UPDATES . I then was able to burn with out any synch issues using both versions of each program. I even used MovieFactory 3 to convert the audio to ac3 without synch problems.

So my conclusion is that the sych problem was a result of one (or a combination) of the updates. I had originally installed updates to all of my Ulead products at the time I originally installed VideoStudio 8 and MovieFactory 3.

When I have more time I will experiment by installing an upgrade, make a test burn, install another .....and so on, until I can identify when the synch problem starts.

[stephen]

Today I completed a DVD without the OOS error. I took note of a number of postings on this web forum and carried out the following:

I uninstalled VS8 and then reinstalled without any patches.

I chose LPCM as audio format instead of MPEG Audio (don't really understand that bit though)

I turned off smart render before saving my project as a file

Then burned resulting file to DVD.

I don't know which step was the critical one but it has worked so I will be continuing to use this method for now.

That is until I find a better programme than VS8!!!!

[bzrigger]

I also have terrible audio sync problems (as much as 1-3 seconds per hour of video) when going straight from my project to creating a disc.

I have been able to work around it in VS 8.0 (with all patches applied) by doing the following.

1) Go to "Create Video" then choose NTSC DVD as the type of video.
2) I even leave "Smart Render" enabled. It doesn't seem to matter.
3) Create the single video file (MPG) from you project. This takes a long time (about 2 hours per 1 hour of video on my 2.5GHZ system).
4) Create a new project with just the single MPG you just created on the timeline - NOTHING ELSE.
5) Go to "Create Disc" and create your disc.

I have not tested it on anything over 1 hr. in length (since I'm not using Dual Layer disks), but I have original video segments over 1 hr. if that makes any difference.

I have NO audio sync problems using this method.

Let me know if this works for you.

[stephen]

That's exactly what I was doing when I had the OOS problem!

The only difference being I use PAL not NTSC as I am in a PAL area.

Do I now reapply all patches etc and try again?

I am getting very confused with all this