once again, problem with smart render ...

beermaster · Post by **beermaster** » Thu Jun 19, 2008 5:37 pm

First, sorry for my english, I speak french ...
So, I have a JVC Camcorder (GZ-155) wich make MOD files (MPEG 2, upper field first, VBR 8900 and Dolby Digital 384 kbps.
I make a project in Video Studio Pro 11.5. When I save "same as first video clip", with Smart Render ON, image is very good, but I have a non-sync in the audio. But when I save with Smart Render OFF, no sync problem, but the image is not so good as with Smart Render ON.
To show you what I mean, I upload the versions of my file (just a few second) here : http://users.skynet.be/fc106177/testvideo/

If someone can explain me is there is a solution ...

THANKS !!!!!

Trevor Andrew · Post by **Trevor Andrew** » Thu Jun 19, 2008 8:43 pm

Hi

There seems to be a problem.

It is difficult to establish if there is an audio problem without seeing any lip movement.

When I view each video using Power DVD one shows as 4:3 an the other as 16:9

4:3 with smart render. 16:9 without smart render.
The aspect ratio seems to be your problem?

When I view the properties of both video¡¦s in VS they are the same 16 9.
This is very strange.

Can you provide the video properties of the original clip, before rendering

Trevor Andrew · Post by **Trevor Andrew** » Fri Jun 20, 2008 9:08 am

Hi

Just a thought!

Are we confusing Smart Render with Non Square Pixel Rendering.

Exactly which option did you choose to render your video file.

DLA · Post by **DLA** » Mon Jun 23, 2008 4:28 pm

The problem is not the aspect ratio. The problem is smart render. I encountered problems similar to this. I have a DVDcam which produces NTSC 16:9 720x480 VOBs. I import the DVD in VS using the provided DVD import tools. Each individual .mpg files produced show 16:9 properly. When I edit in VS doing simple crossfades between my scenes and render using smart render, I not only have the glitches to appear at the end or every transitions but I also have aspect ratio going from 16:9 to 4:3 and back to 16:9 but so far I can only view this when watching the rendered MPEG2 file on WinDVD on my PC. If I use the rendered MPEG2 file and create a DVD with it, I don't have the aspect ratio switching problem. It stays at 16:9.

The sequence is as follow. First scene starts properly as 16:9 so is the first transition. After the end of the first transition, the aspect ratio is going to 4:3. On the next transition, where VS is re-encoding, the aspect ratio switches to 16:9 and then back to 4:3 when smart render kicks-in after the transition.

None of this happens when smart render is off. The clip is 16:9 all the way and no glitches.

I kind of resigned using smart render in VS.

beermaster · Post by **beermaster** » Tue Jun 24, 2008 11:22 am

My problem is not the aspect ratio (when I use the video with samrt render in 4:3, in a DVD program, the 16:9 is good). My first problem is the desync of the sound (with smart render) when I make a "montage". The sound desync is progressive, so I can show you an exemple, but my file is 445MB, a little big to upload.
My second problem, is when I disable smart render, the sound is good, but as you can see, the vieo quality is not so good (you can see when the pink car is running).
I don't confuse Smart Render with non-square pixel rendering.

Thanks

Trevor Andrew · Post by **Trevor Andrew** » Tue Jun 24, 2008 6:43 pm

Hi

Smart render and Non square pixel was just an idea.

Can you provide the video properties of the original clip, before rendering.

Can you confirm the aspect ratio of the original clip.

beermaster · Post by **beermaster** » Tue Jun 24, 2008 7:17 pm

So, these are the properties of the original video from my camcorder.

In GSPOT:

In VIDEOSTUDIO:

I confirm that I use 16:9 when I film with my camcorder ... (JVC GZ-MG155)

Trevor Andrew · Post by **Trevor Andrew** » Tue Jun 24, 2008 11:24 pm

Hi

Thanks for the info, I do not use G-Spot nor do I have a JVC Camcorder (GZ-155).

The camera appears to be a Hard Disc Drive camera. I would assume that you can Copy and Paste the video to your PC. But as said I do not use this type of camera, others on the forum may help.

Using G-Spot, seems to be re-coding the imported video, is this the correct approach, the image for G-Spot you show seems to select DVD-4:3 (highlighted) as the ¡¥re-sizing option¡¦ bottom right.

If your camera has produced 16:9 then this option is incorrect.

Can someone confirm the capture procedure for a JVC Camcorder (GZ-155) camera

beermaster · Post by **beermaster** » Wed Jun 25, 2008 6:26 am

It's a Hard Disk Camera, I copy-paste the .*.MOD files (Mpeg2 VBR 8900, Upper Field First, Dolby Digital 384) to my computer, no need to capture something ...
GSPOT is just use to know all the properties of a video ...
But for my problem of a less quality image with a good sound (without smart render), or of a good image quality but a desync af the sound, I don't think the aspect ratio is the origine of these problem ....

Sektionschef · Post by **Sektionschef** » Wed Jun 25, 2008 8:33 am

try this:
http://phpbb.ulead.com.tw/EN/viewtopic. ... 021#118021

Regards
Sektionschef

beermaster · Post by **beermaster** » Wed Jun 25, 2008 9:40 am

Thanks for your help ...
I try it, but no result, always a desync af the audio ...
Maybe a correction in the VideoStudio 12 ???
Someone try it in japanese ?????

Sektionschef · Post by **Sektionschef** » Wed Jun 25, 2008 11:08 am

One more hint to try:
download the freeware pvastrumento and let it run over your mpg file.
To do this start pvastrumento specify your renamed MOD(must be MPG) as the source file and press "make ps" to get a new "repaired" mpg file. Put this new mpg onto VS11's timeline and restart smartrendering.
Does it help?
Regards
Sektionschef

beermaster · Post by **beermaster** » Wed Jun 25, 2008 11:43 am

a great thanks, but always the desync audio ....
continue to try

DLA · Post by **DLA** » Wed Jun 25, 2008 10:07 pm

beermaster wrote:Thanks for your help ...
I try it, but no result, always a desync af the audio ...
Maybe a correction in the VideoStudio 12 ???
Someone try it in japanese ?????

When I tested the Japanese version of VS12, all the smart render bugs I described in this thread are still there.

Sektionschef · Post by **Sektionschef** » Thu Jun 26, 2008 6:43 am

DLA wrote:When I tested the Japanese version of VS12, all the smart render bugs I described in this thread are still there.

No surprise!
Ulead has NEVER made any improvements on the smartrender in any version although these problems are already known to them.
Seems that they are not interested to increase their business with the (growing) crowd of mpeg2 camcorder users...
Regards
Sektionschef