The Video Production Project

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Revision as of 02:22, 24 September 2006 by <bdi>EsmondKane</bdi> (talk | contribs) (Reponses to previous author, discussions of MP4 video codec features)
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Hi, not sure if this is the right space to post this or the right format, so if it's not feel free to edit this away, as I reproduced in on the moodel site.

I'm no video editing genius, I have limited experience with it, but would be willing to help Kwan Bul (in whatever way I can) if he'd like. I noticed that there was some discussion about the slides and how they weren't very viewable for the extension students. I saw a very good example of a video presentation that incorporated both lecture type video and slides at the Keynote address of the 22C3 conference. [1] go to the page and search for the keynote speech (it gets get good around the middle and Joi Ito is an interesting speaker).

I was really impressed by how well it was done, as usually it is very difficult to integrate video and slide elements into a lecture. The process looks labour intensive, but it would be fun to try and emulate.

Another thing that might be really usefull, perhaps for future classes, is a backchannel IRC group for the lectures, though I suppose the wiki in a way fulfills that role. it would be really interesting to have some backchannel information integrated with the video (much like the slides are integrated with the video in the 223C video) in order to get an idea of what the HLS and other students are thinking. I mean their contribution to the course and the site is invaluable and, in my opinion, the more information that can be squeezed from them the better.

There is now an IRC channel #cyberone established on irc.oftc.net. If anyone isn't sure what IRC is or how to connect don't be shy about asking for help.


Breaking those suggestions up (and i believe we should really move this to the wiki discussion link for this topic)

1) Slide Features:

AFAIK The Real smil format includes triggers for flipping an associated SlideShow. I believe thats how FAS do the "traditional" synchronised video and slideshow for Distance Ed classes.

In this class we are working with MPEG4/H.264 files and the spec does include some textual features in the "container" specification. I know you can provide special files to Quicktime, VLC and Mplayer etc to trigger on specified intervals (it can be used to provide non-derivative CopyRight-compliant Fair Use editing) irrespective of the video codec used. Staying with MPEG4, we could MUX subtitles or a Slide MENU into the stream - see below for a quick discussion into deviating from the clean standard.

2) Bookmarks, Chapters or Timed events/triggers

According to the excellent doom9 guide the MPEG4 format includes bookmarking but due to slow uptake (vague standardization) heavily favouring certain vendors (Apple, Divx etc), its going to corner us into the "recommended clients" backwater to work with it.

Perhaps if we can get more audience participation in marking event triggers, something as simple as a scripted timed rotation on a video page would work with synchronized slides ... or we can just adopt the new features and with it favour one vendor, e.g. download this file if you want the notes in the video stream or go to this special wiki page.

I have used VLC to mark chapters in the class lectures. The process would involve re-upping a modified video and i'm not ready yet to vouch the vlc route as cross-client compatible. I'll get back to once i have more time to work with the process.

Off-Topic:

IRC would be yet another avenue for discussion, I doubt, however, that it offers any significant improvement over the communication Channels (Blog Comments, Moodle Journals, Wiki, Forums and to a lesser extent email) already offered.

Audio:

In general i find the stereo audio on the class videos a little confusing, the sound veers across channels and is disconcerting using a headset or speakers. For my purposes (and antiquated iPod) i usually rip the audio to a vanilla mono mp3. I can provide the modified files or upload them somewhere within the boundaries of the inherited distributed license if people request.

--Ezi 22:22, 23 September 2006 (EDT)