Differences in Quality

Ron Lucas wrote on 4/12/2002, 8:34 AM

I just made a photo slide show in VV30a with each picture moving a little. I'm viewing these on my computer monitor.

After I rendered the a final video as AVI (using the NTCS DV preset), MOV (Quicktime 3MB preset) , and MPG (MPEG1 VCD preset), the AVI file is the only file that shows artifacts when the pictures are moving. The other formats look beautiful.

Then, I created my own AVI preset based on the NTSC DV preset and changed the Field Order to None (progressive scan), but I get the same results. As the pictures are moving, I get wierd glitches in the video that should not appear. I've played with the two options Resample and Remove Interlace Flicker, but they don't seem to make a difference.

After I print to tape the AVI file, and send the file out to a VCR, the video looks fine on a TV.

So, I'm just wondering if this is normal for the AVI NTSC DV setting to look worse than the other codecs on the computer screen. If so, I guess nothing is wrong.

Thanks,
Ron

Comments

tserface wrote on 4/12/2002, 9:55 AM

I might be the pixel size that is making it look odd. Have you tried rendering with a 1x1 pixel (square) rather than the NTSC standard of .909. If you are going to run on a computer screen you will want square, but if you are running the final output on a TV you will want the NTSC standard.

Tom

Control_Z wrote on 4/12/2002, 1:14 PM

Could be the audio sync in DV-out preview too. Fooled me once - I even reinstalled VV3 trying to fix the jittery video.

By design, the DV-out signal will skip frames to keep the audio sync with the computer. But you won't see it when printing to tape since then the audio is sent along with the video.

Ron Lucas wrote on 4/12/2002, 3:02 PM

Actually, I'm just comparing my results using Microsoft's Media Player to compare the AVI and MPG files I create, and QuickTime Player for the MOV file. When looking at these on the computer screen the AVI file, which in my opinion should look the best, looks the worst.

Ron

Ron Lucas wrote on 4/12/2002, 10:02 PM

I just found out my problem viewing my AVI NTSC DV rendered videos using Media Player. Someone here named Nat answered a similar question on another thread indicating that a setting in Media Player for Acceleration was NOT set to 'High' by default. Setting this to 'High' fixed my problem. So there was never a problem with the settings for VV30a, it was just a setting in Media Player. Thanks Nat!!!

Ron