Video quality rendering issue with MP4s

Daniel Peterson wrote on 5/3/2010, 12:13 AM
Have just begun a trial of Vegas Pro 9...

Ok, I popped a few MP4 music videos in the editor.. These MP4s look great in my GOM Player, but in the preview window of Vegas Pro, there obvious pixelations that pop up here and there.. While other parts of the pic are fine.

So I thought it was a preview screening issue and the rendered file would be fine..

No such luck, the rendered file is still bad with the added pixelation...

I had rendered it as a 640x480 at 29.97 fps file.

Anybody have any advice? Should I be doing something to these files before editing... Such as converting them to AVI files?... Or perhaps changing a setting in Vegas Pro?

I am interested in purchasing this software, but need to resolve this issue first.

Thanks in advance for any help.


willqen wrote on 5/3/2010, 1:18 AM
What are your project settings ? Set them the same as your video files.

What are your preview window settings, what template did you render to? was it Sony AVC, or Main-concept ?

By the way what resolution did your files start out at?

Thanks, Will
Daniel Peterson wrote on 5/3/2010, 12:35 PM
Hello Wilgen, thanks for your reply...

Project Properties Video Tab says:
Template: NTSC DV (720x480, 29.970 fps)
Width: 720, Height: 480
Frame rate: 29.970 NTSC
Field Order: Lower, Pixel Aspet Ratio: .9091 (NTSC DV)
Pixel format - 8bit
Motion Type - Gaussian
Deinterlace - Blend Fields
Full Resolution Rendering Quality - Good
Adjust Source Medai To Better Match is checked

I believe I used "Default Template (Uncompressed)" when rendering

As far as the video file itself... I right clicked on it in the Project Media box .. If there is a better way just let me know...

under General Tab
Type: Sony AVC
Video: 00:03:55.135, 29.970 fps progressive, 640x480x12, AVC

under Media Tab:
Use timecode in file is checked
Stream: Video 1
Format: AVD
Attributes: 640x480x12...
Field Order: None (progressive scan)
Pixel Aspect Ratio: 1.0000 (Square)
Alpha Channel: None

I am going to try to get these numbers to match right now and will report back..
Daniel Peterson wrote on 5/3/2010, 12:50 PM
Ok, I have changed the project settings, but still the problem exists...

Looks like this is what I changed that was different:

Template: Custom (640x480, 29.970 fps)
Width: 640, Height: 480

Also, Pixel Aspect Ratio is now 1.0000 (Square)

That is it though.. I did notice during rendering that it was at 640x480x32.. And not at 640x480x12

Somebody mentioned that Vegas might not handle MP4s as well as .AVI files.. So I am going to try converting the MP4s to AVI files next...