• VEGAS Pro

  Sony Vegas 9 – Text/Font Artifact(?)

  Posted by Joaquin Sanchez on December 2, 2009 at 11:43 am

  Greetings,

  I have just started using Vegas…and have just started working with video.

  I have run into an annoying problem:

  I have used the Pro-Type Titler to create a number of text clips throughout my video. Some are static, some have animation (tracking, etc)…

  I am rendering to AVI at first.

  At least half the time the text/font has some kind of blocky ghosts – typically on long, vertical letters and to either side of the main body of the lette or on either side of an “o” or “0”. Sometimes it fades as the text animates.

  Sometimes it is there, sometimes it isn’t. I’ve tried changing fonts but that doesn’t seem to matter very much.

  I have tried searching the forum but may not have the correct vocabulary to find any relevant entries.

  I appreciate any insight the community can give.

  Thanks,

  JS

  Joaquin Sanchez replied 16 years, 9 months ago 2 Members · 4 Replies
• 4 Replies

• 

  D. Eric franks

  December 3, 2009 at 2:20 pm

  Let’s start with the codec: What encoding are you using within the AVI file format wrapper? Second, if you toggle the Preview Window to “Best (FULL)” and look at the video at actual project size (so you can see the actual pixels Vegas will be encoding when you hit render), do you also see the ghosting?
• 

  Joaquin Sanchez

  December 3, 2009 at 4:32 pm

  Thank you for the response:

  Preview:

  In Best/Full preview mode for the VEG file/project I do not see the ghosting

  Project Settings:

  NTSC DV Widescreen
  Lower Field First
  32-Bit Floating Point
  Rendering Quality: Best
  Gaussian Blur
  No Deinterlacing Method

  Render Settings:

  Video For Windows
  NTSC DV Widescreen
  29.970 Frame rate
  Lower Field First
  1.2121 pixel ration
  Interleave every .250 seconds

  The ghosting appears on the AVI file as viewed on my computer screen. (And then appears when the AVI file is transferred to a DVD for DVD playback…)

  Hopefully I provided the information you were looking for…

  -JS
• 

  D. Eric franks

  December 5, 2009 at 3:37 am

  That’s enough info to tell us that it’s the codec and not anything Vegas is doing, especially if you NEVER see it in Vegas before the render. I have seen intermittent issues with v9 that show up in the preview window AND on render, but not consistently with a drop shadow. Crazy, I know, but the drop shadow would just freak out for no reason. I couldn’t reproduce it on the same frame every time. And, like all the best bugs, it went away all by itself after rebooting.

  One possible (pain in the butt) solution would be to render out uncompressed first (AVI, QT, whatever) and then render that file to DVD. That’s solved issues with complex sections of video for me.

  All this assumes this is not a consistently reproducible issue: If you can consitently get ghosts on a particular letter at a particular frame, render after render, that’s something else, probably the codec in combination with the letter you are rendering. Not as strange as it sounds, for example, single pixel horizontal lines on interlaced signals will flash and flutter when scrolling. So it could be that a very narrow vertical bar of a certain width (and maybe a certain color) gets stretched 4 pixels by the MPEG-2 encoding creating a ghost, but if that’s the case, it’ll be 100% reproducible, render after render.
• 

  Joaquin Sanchez

  December 5, 2009 at 4:31 am

  Thanks.

  I have been using AVI footage and rendering into AVI (in anticipation of finalizing the “film” clips in MPEG2 for the DVD)…

  I think it has something to do with the font and the font weight.

  I’ve started experimenting with the font and font weight (increasing) and the ghosting ceases in many cases (although, strangely, it still appears INSIDE the letters at times, but it isn’t so bad and doesn’t interfere with what I am doing (highlight film for a football team).

  Thanks for looking into it!

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