Casting Out Nines

education | teaching | math | technology

Screencasting proceeds at a limp

I’ve spent most of the afternoon working on screencasts. I’ve made two of them, not counting one that I ended up deleting because it went too long. (I’m trying to stick to a 15-minute limit on these things.) I would love to share them, but…

1. The pixel resolution on Google Video is God-awful, even when I encode the screencast as high-resolution MPEG4 video. Here’s what it looks like (click to enlarge):
Latex Screencast Res Problem
You can (try to) see the whole thing here. Like I said, that’s at the high end of resolution.

Update: By contrast, here’s a screenshot of the same frame taken from the original Quicktime:
Latex Screencast Res Problem 2
The Quicktime is nice and sharp. The Google Video is illegible.
2. Both ecto and the native WordPress editor refuse to upload the original Quicktime movies. The small one I made was 22 MB, which is big but not so big it would make the server choke.

I’m certainly learning a lot about the technical side of making screencasts through all these false starts. Like I’ve said before, it’s a lot harder than it looks.

Any suggestions for how to get video to look halfway decent on Google Video? Can it even be done?


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Filed under: Educational technology, Screencasts, Software, Technology

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@RobertTalbert on Twitter

  • Brilliant. RT @jclarey: Awesome freakin' restaurant decision flowchart. http://bit.ly/8Cql34 (if you get to benihana's god bless) 3 hours ago
  • @digicmb Thanks. That was easy! 3 hours ago
  • The 5yo just made me a very sweet card with "I love daddy" on it. Then she said, "I'll make one for mommy tomorrow if I have the time." 3 hours ago
  • @sc_k You reach a certain point in shows like this where "God did it" is a lot more plausible explanation than "science did it". 3 hours ago
  • I guess I can save video as Flash and embed the Flash, but I'd rather not deal with the actual video file. 7 hours ago

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