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How does a video look different on diff computers?

by Dexx
4 replies
Hey guys,

Not sure what section this be in (if it needs to be moved, I understand)

I'm trying to figure out why a video I recorded can look good on some computer and yet on others the details aren't as "crisp."

For example the background images stand out on my laptop and desktop PC, but when I view the video from other people's computers, the faded images in the background seem barely visible.

These are videos of a keynote presentation video I recorded, and are in .mp4 format (H.264)...nothing special really?

I don't think the monitors are the problem, but could they be?

The content words show up fine and very visible, just the background images that have 20-40% opacity seem to be hard to see...

Dunno if it has to do with how the videos were encoded, or what!

Any advice would be appreciated!

~Dexx
#computers #diff #video
  • Profile picture of the author Bill Farnham
    Dexx,

    A lot of what you are describing comes down to the video card on the computer. Perhaps when you are 'researching' this phenom you could look at the video cards in question. They are not all created equal.

    Might make for a good report...

    ~Bill
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  • Profile picture of the author ncmedia
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    • Profile picture of the author Dexx
      Originally Posted by ncmedia View Post

      It's simply callebrating your monitor so that it's universal and or having more than one computer to find a good mid-point to use as your reference when making the vids/compiling your pre-vis.

      That makes a lot of sense!

      The videos look perfect on my 27" iMac and my Macbook Pro

      but when I view the same video on some desktop PC from 2006-2007, the "faded images" are almost non-existant and mostly washed out with the white background.

      Blah! Technology has to be such a pain in the butt!

      I guess the question then becomes do I tailor videos for older machines (that are on the verge of becoming obsolete anyway) or focus on higher quality recent-machines...

      Kind of like when websites look bad in Internet Explorer 6...now its at a point of "upgrade or miss out"...

      I suppose the fact that the images are more for "added benefit" as opposed to required for understanding means that I don't need to cry myself to sleep over it...

      Maybe I'll keep the opacity at a minimum of 40% for now though (some images were at 20% and I think that's a problem for older machines)


      Thanks guys! Any additional comments / suggestions welcome also!

      ~Dexx
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  • Profile picture of the author Dexx
    Well I am recording the videos using Keynote's record presentation, then I combine the video and the audio / background music in iMovie '09.

    I then exported it in the higher quality I could (Large @ 720x540 : H.264, 30 FPS, 4 Mbps, 105.7MB)

    So quality wise, I think that's the best I could do (I forgot to record the presentation in 1280x720)

    Thoughts?
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  • Profile picture of the author Dexx
    Ah I see, okay I'll do that later on then! =)
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