Can anyone help?
I use Videostudio 8 to capture and and edit some home movie....
After I burned into DVD then I have audio (video) problem. Video is about 2 seconds lag behind. I play the DVD on computer and I experiment the same problem...
--I check the the orginal files and they are work just fine.
--I play it in project preview before I burn into DVD and it it work fine.
--Look like it's happended after the rendering process...
Thank you very much!
Winston
out of sync problems
Moderator: Ken Berry
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BrianCee
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tigerwin
Winston,
This is normal for Video Studio!
Are you editing MPEG files? If so, I can give you some suggestions. (Well, the first suggestion is to use another format, if possible.)
Hypothesis -
The original audio & video files are multiplexed (woven together in one file). As long as they remain multiplexed, they cannot possibly get out of sync.
Video Studio de-multiplexes them, and then re-multiplexes them. At some point during the process, one of the files (audio or video) changes length, or gets trimmed at a slightly different point from the other. When the audio and video are re-multiplexed, they don't align.
Doug.
This is normal for Video Studio!
Are you editing MPEG files? If so, I can give you some suggestions. (Well, the first suggestion is to use another format, if possible.)
I believe you are right!--Look like it's happended after the rendering process...
Hypothesis -
The original audio & video files are multiplexed (woven together in one file). As long as they remain multiplexed, they cannot possibly get out of sync.
Video Studio de-multiplexes them, and then re-multiplexes them. At some point during the process, one of the files (audio or video) changes length, or gets trimmed at a slightly different point from the other. When the audio and video are re-multiplexed, they don't align.
Doug.
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Trevor Andrew
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stephen
I managed to fix the out of syn problem by uninstalling VS8 and reinstalling without the update patches. However, I have never been satisfied with Videostudio 8 and am currently looking at other options. Ulead should address these issues - do they ever read their user boards? I have never come across a user board with so many problems and moans. 
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orlcam2002
use videoredo
I agree with you on that ulead should read these forums but apparently they are from another country that can not read english!
Here's how I was able to solve this issue. There is a software called videoredo (www.videoredo.com). It'll take your dvd (actually the vob) and you can then save it as an mpeg. From their you can use this new file into ulead. It will NOT re-compress the file. That's the beauty of this. The only unfortunate thing is that it'll cost you 49.99. For me it was worth it.
Here's how I was able to solve this issue. There is a software called videoredo (www.videoredo.com). It'll take your dvd (actually the vob) and you can then save it as an mpeg. From their you can use this new file into ulead. It will NOT re-compress the file. That's the beauty of this. The only unfortunate thing is that it'll cost you 49.99. For me it was worth it.
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maddrummer3301
- Posts: 2507
- Joined: Fri Dec 10, 2004 10:24 pm
- Location: US
> Hypothesis -
> The original audio & video files are multiplexed (woven together in one
> file). As long as they remain multiplexed, they cannot possibly get out of
> sync.
I guess you could look at it that way but another way to look at it is
Software players use a different method of playback than a dvd player.
A dvd player playsback in realtime. That's why you can choose different
audio tracks etc. To correctly sync an audio track to video you need to
use SMPTE timecode (realtime syncing method). This way you can put
many audio tracks or voice tracks(languages) with one video track.
The original mpeg files created (rejoined after cutting etc) the
I-Frames are time-stamped wrong with respect to "REALTIME".
The original mpeg2 files being created with audio/sync issues are bad.
Those files do not pass a compliancy test.
Videoredo attempts to correct the time-stamping
of the I-frames and does a nice job of it.
Ulead was doing a good job of rejoining mpeg's together. Seems like when
they started writing more code to work and import the Mpeg4 video format
that the problems have come out.
Best to stay with Dv.avi editing if possible.
Hope this helps,
MD
> The original audio & video files are multiplexed (woven together in one
> file). As long as they remain multiplexed, they cannot possibly get out of
> sync.
I guess you could look at it that way but another way to look at it is
Software players use a different method of playback than a dvd player.
A dvd player playsback in realtime. That's why you can choose different
audio tracks etc. To correctly sync an audio track to video you need to
use SMPTE timecode (realtime syncing method). This way you can put
many audio tracks or voice tracks(languages) with one video track.
The original mpeg files created (rejoined after cutting etc) the
I-Frames are time-stamped wrong with respect to "REALTIME".
The original mpeg2 files being created with audio/sync issues are bad.
Those files do not pass a compliancy test.
Videoredo attempts to correct the time-stamping
of the I-frames and does a nice job of it.
Ulead was doing a good job of rejoining mpeg's together. Seems like when
they started writing more code to work and import the Mpeg4 video format
that the problems have come out.
Best to stay with Dv.avi editing if possible.
Hope this helps,
MD
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Trevor Andrew
Hi
Maddrummer
I have done a load of oos tests and have always found the problem points to the Update Patch and Smart Render.
You may be correct in that working with AVI files seems to cure the problem, but Avi conversion to Mpeg 2 does not undergo Smart Render.
Only when rendering Mpeg to Mpeg can you use smart render.
Unfortunatly the rendered Mpeg’s do not show any signs of oos until after multiplexing in the burner stage.
Any Mpeg’s that have undergone smart render at any time during editing may suffer.
As smart render is on by default, forgetting to turn off smart render can be a problem.
My last test involved using a suspect smart rendered mpeg, created on a fully patched system, the final Vob’s being oos.
I reinstalled VS 8 with no patch.
Used the suspect mpeg to create another Vob to find it in perfect sync’
I have assumed that smart render corrupted the mpeg in some way, but in view of the above I can only think that the multiplexing in the burner module must be at fault.
All the Best
Trevor
Maddrummer
I have done a load of oos tests and have always found the problem points to the Update Patch and Smart Render.
You may be correct in that working with AVI files seems to cure the problem, but Avi conversion to Mpeg 2 does not undergo Smart Render.
Only when rendering Mpeg to Mpeg can you use smart render.
Unfortunatly the rendered Mpeg’s do not show any signs of oos until after multiplexing in the burner stage.
Any Mpeg’s that have undergone smart render at any time during editing may suffer.
As smart render is on by default, forgetting to turn off smart render can be a problem.
My last test involved using a suspect smart rendered mpeg, created on a fully patched system, the final Vob’s being oos.
I reinstalled VS 8 with no patch.
Used the suspect mpeg to create another Vob to find it in perfect sync’
I have assumed that smart render corrupted the mpeg in some way, but in view of the above I can only think that the multiplexing in the burner module must be at fault.
All the Best
Trevor
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tigerwin
thank you very much to all you guy for the helps.
My UVS8 now does not have any patch installed.
I will try to install all of the patchs and give it a try... if it's does not work I will try editing with DV format (this is a last try because it's meant I have to recapture the video again!!!!!!!!!!)
If nothing work, I guest I will switch to Pinnacle studio 9 for good.
I have been using Ulead VideoStuido for a long time (since verson 4).
I already used to Ulead VideoStudio layout, it's sad to switch but look like it's the only choice...
Thanks for all the helps.
Winston
My UVS8 now does not have any patch installed.
I will try to install all of the patchs and give it a try... if it's does not work I will try editing with DV format (this is a last try because it's meant I have to recapture the video again!!!!!!!!!!)
If nothing work, I guest I will switch to Pinnacle studio 9 for good.
I have been using Ulead VideoStuido for a long time (since verson 4).
I already used to Ulead VideoStudio layout, it's sad to switch but look like it's the only choice...
Thanks for all the helps.
Winston
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Trevor Andrew
Hi Winston
Assuming you have a project in the timeline that has not undergone rendering, ie captured then edited only.
Share Create Video File
'Same as project settings' if your captured video is Mpeg.
OPTIONS UN-TICK PERFORM SMART RENDER
Save the file
Share create disc
Use the file above Add Video
In the burner module select Create dvd Folder.
Play the Ts folder using Dvd player or similar to check audio sync’
Or rename the Vob files to Mpg, then import to VS to play.
don't give up
Trevor
Assuming you have a project in the timeline that has not undergone rendering, ie captured then edited only.
Share Create Video File
'Same as project settings' if your captured video is Mpeg.
OPTIONS UN-TICK PERFORM SMART RENDER
Save the file
Share create disc
Use the file above Add Video
In the burner module select Create dvd Folder.
Play the Ts folder using Dvd player or similar to check audio sync’
Or rename the Vob files to Mpg, then import to VS to play.
don't give up
Trevor
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maddrummer3301
- Posts: 2507
- Joined: Fri Dec 10, 2004 10:24 pm
- Location: US
Hi,
DV.avi are "TimeStamped" every frame. It's much easier to edit the dv.avi
file because it's exact.
VS8 does use smartrender when editing DV.avi files.
Because every frame is timestamped they can smartrender accurately.
But, if your dv.avi file has 12bit 32khz audio and your project properties
are set for 16bit 48khz audio VS8 can choke on that smart render.
If you plan to edit a dv.avi file always set the project properties equal
to the source dv.avi file.
On the final output the audio will be converted to the proper spec.
I'll post back on the Mpeg oss thing.
I wouldn't apply any updates to VS8 for now.
Unfortunately there are 2 bugs.
One that creates and another that fixes.
MD
DV.avi are "TimeStamped" every frame. It's much easier to edit the dv.avi
file because it's exact.
VS8 does use smartrender when editing DV.avi files.
Because every frame is timestamped they can smartrender accurately.
But, if your dv.avi file has 12bit 32khz audio and your project properties
are set for 16bit 48khz audio VS8 can choke on that smart render.
If you plan to edit a dv.avi file always set the project properties equal
to the source dv.avi file.
On the final output the audio will be converted to the proper spec.
I'll post back on the Mpeg oss thing.
I wouldn't apply any updates to VS8 for now.
Unfortunately there are 2 bugs.
One that creates and another that fixes.
MD