Distorsion on transition efect

[2pac]

HI,

I use the UVSP product line for a long time now and have more or less discovered all why´s and because´s.....however.....I currentlyhave the 7.0 version installed and have some problems for which I simply can not discover the cause, namely, after rendering and editing an PAL DVD project and burning it with the DVD wizzard to a DVD my video gets some kind of distortion where the transition effects are, this happens on some places for a split second and on some parts of the video it last for a few seconds and even on some parts it stopšs tzhe DVD.

I checked everything, project settings of project same as captured file also when burning it to the DVD wit the wizzard I checked the burning properties and they are the same as project and capture file settings, I defragmented the HDD, but nothing stoped this distorsions on transitions.

Does anyone have some more advice?

I would be very thankful for any suggests or comments.

Thanx


2pac

[barnus]

No answer to the post and no hope for me. Does anyone has such a problem with version 10+ ?
I'm waiting impatiently for any clues

Barbara

[Ken Berry]

Funny -- I started off my home editing career with VS7, but I can't even remember it having a DV to DVD wizard!

In fact, I have never used any wizard with any version of VS, so cannot offer any advice on this point. But have you tried burning by NOT using the wizard, and using the main Editor program instead, using the following work flow.

Essentially, we recommend you capture and edit your video (preferably in DV format, though this may not always be possible). Then, after editing, adding your transitions etc, you go to Share > Create Video File > DVD. This will produce a DVD-compatible mpeg-2 file. Make sure you choose properties in the selected template which you intend to use later in the burning.

Once you have this file, then close your project and open a new one, but leave the timeline empty. Then go to Share > Create Disc > DVD. The burning module will open. Insert your DVD-compatible mpeg-2 file(s). Make sure the burning properties are the same as the mpeg-2 properties -- check this in the middle of the three icons in the bottom left of the burning screen. Create your menu and burn.

Using this procedure, you should not have rendering in the burning phase (apart from production of the menu).

While it is theoretically possible to go straight from editing to the burning stage, too many people have had too many problems doing it this way. That is why we recommend the separate steps I have outlined above.

I have another question, though. Have either of you used 'Split by scene' after you have captured your video (NOT during capture)? I ask because, with VS9 at least, I found that its creation of virtual files when splitting by scene after capture, also caused the occasional blip with transitions. In my case, I was detecting during the transition a very rapid scene change to some former scene, where I had moved the virtual scenes around a bit in the timeline. Since then, I split by scene during capture where I can, AND when I further edit files in the timeline, I use Clip > Save Trimmed Video to actually create a real file... The problem has not recurred in VS10 because I continue to use this procedure...

[Terry Stetler]

I'd have to know the MPEG stream properties, content type (talking heads, action etc.), transition type and what you're doing with the distortion to make an informed judgement.

That said with all kinds of motion going on over a short transition it could well be that you need to address the motion vectors in the advanced MPEG settings. The default motion vectors are only a 3x3 matrix, which is no way enough for complex motions.

Talking heads and Christmas, yes. Sports and complex moving effects; no way in h***

Read this tutorial on motion and MPEG, then consider upping the motion vectors to 16 or more in a custom project template for such things;

http://phpbb.ulead.com.tw/EN/viewtopic.php?t=10880

[DVDDoug]

Barbara,

If your source files are MPEG, this might be "normal". The MPEG has to be decoded and re-coded, and since MPEG is lossy compression you loose quality when it is re-compressed. (I do get better results with a special-purpose MPEG editor.)

If your files are AVI/DV, you should not get this kind of problem.

P.S.
For a post that old, you could have started your own thread.

Doug.

[Terry Stetler]

MPEG doesn't have to be a problem with this effect. Those motion vectors can help a lot once you get a handle on using them.

[barnus]

Thank you all for taking up this thread.
I haven't been sitting idle and I think I found a way to deal with my problem.
I simply used the repair mode in installation wizard of ULVS 10+ and it helped. Someone suggested such an approach to a different case but I thought it might work for me. And it works so far, hopefully.

The thing is that I still do not know the cause of this abnormal software behavior.
I have been working on DV avi source files and I wanted to render them into DVD Video format so MPEG properties and compression influence on the transitions can be excluded.

Splitting by scene after capturing a video or during that process is an interesting guess I haven’t thought about but it doesn’t apply to my case because unintentionally I marked scene split during the capture and it seems to be the right procedure.

If the problem aroused from the flow during installation of VS then it is solved. If not we will see…

Barbara