Lectora/Flash/RoboDemo/.mp3 Performance
January 7, 2005 12:00 AM
Hi all -I'm putting together an online learning course that contains a number of embedded Flash and RoboDemo movies, as well as many of the pages containing .mp3 voice-over in 96kbps format. The Flash movies and RoboDemo movies also contain voice-over .mp3s. This is a pretty media-heavy training course, obviously, and as a result, the performance isn't terribly great. After I upload the training to our hosted Oracle iLearning LMS, the performace gets a little choppy. Symptoms include:- occasional "stutter" at beginning of voice-over- delay in displaying dynamic text fields for page title/page numberWhen I was originally testing this on an intranet-based web-server, the performance issues weren't significant, but once posted to the internet-hosted Oracle iLearning LMS, the performance issues are much more significant. I'm sure this is a result of server load, bandwidth, and general internet latency.What I'm hoping someone might be able to provide are some authoring guidelines to minimize these performance issues. I realize the standard response is going to be "cut out the audio, limit the RoboDemo/Flash movies", but that's not really an option, so I'm looking for other workarounds, like how to structure the content in Lectora. Seeing that the audio is the most likely culprit, I'm planning on dropping the bitrate to 64kbps, but is there anything else I should try that maybe isn't so obvious?Thanks,Mark
Discussion (2)
I would try to drop the audio to 32kbps.I would try to drop the audio to 32kbps.
We use robodemo and lectora together extensively. The trick is to chunk the robodemos and audio down as much as possible. I use a menu metaphor in these types of courses. Use the standard Lectora TOC that links to pages with the robodemo movies embeded in them. When the robodemo is done they can go back to the "main menu" or they can go to the next page.I keep the navigation in lectora. If you put it in robodemo the latency is too high. Sounds like you may need to tune your servers a little bit for your application. Another option is to use "load movie" in flash to load your movies and mp3sMore later,Simon
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