Author: ellen

Use Subtitle Workshop to generate captions for Rich-MediaProject

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Over the last couple of years, Microsoft Producer has become less and less of a viable option for synching powerpoint and video. Probably because of browser changes, it works on less browsers than before, and is no longer compatible even with Powerpoint 2007. So I went in search of a Flash-based replacement for MS Producer. I’ve found it in the Rich-Media-Project’s Rich-Media Pack I.

RMP I features 4 components: A Flash-Paper “player”, an FLV video player, a slide list and a media playlist. You create a flash-paper version of the powerpoint or word document, then synch it to the video with XML. The playlist is generated by another xml file, and the captions are created using a third XML file.
The only thing missing is an easy way to create the XML files, so I am creating templates for the captions and slide list XML files in Subtitle workshop. Below is the code for the Custom Format file for the captions:

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Recent research on Alzheimer’s Disease: Inflammation, and the role of viral and bacterial infection

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The last year saw some very exciting developments in Alzheimer’s research. Among them, the relationship of inflamation processes to cognitive decline and a possible relationship of the herpes simplex virus in the presence of a certain genotype to the development of Alzheimers.

Simon Cooke, who writes a blog called the "Accidental Scientist," has posted a very readable and informative summary of some of the most interesting highlights of the latest research. He does a great job of explaining the new discoveries, and speculates about links between infectious diseases and chronic diseases yet to be confirmed. In particular his post on the use of an anti-inflammatory drug to treat Alzheimers – in minutes!, and his post on the possible role of Herpes in many chronic diseases are particularly worth reading.

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Perception 4.3 meets an Oracle 10g bug: Unsupported network datatype or representation

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Last January, I installed a test instance of Questionmark’s Perception server, version 4.2, in preparation for upgrading our version 3.4 Perception server. At the time, we were using Oracle version 9i. Once installed, our testing went well, and we did not notice any significant problems.

In July, we finally got around to doing the actual upgrade, and decided to upgrade the database to Oracle 10g at the same time. The installation and conversion of our version 3.4 data went very smoothly. Everything ran well for about a week. Then things began to go wrong. When we would open the Authoring Manager, it would refuse to show us any assessments (“assessments can’t be found”.) Then it would tell us administrators couldn’t be found. After a few days, the assessments disappeared from the Perception Server as well, meaning users could no longer take them. After trying numerous fixes, we reverted to a recent backup of the database from a couple of days before, and the problem disappeared. The one Oracle error that both Perception Server and Authoring Manager were giving was “ORA-03115: unsupported network datatype or representation.”

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How to run Red 5 on a shared IIS server on port 80

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Setting up Red5 on a box which also contains a web server can be a challenge if you are restricted to using specific ports because of a firewall. Here is how we set up Red5 on a Windows 2003 server which also contains a production IIS server.

Our firewall only allows traffic on ports 80 and 443. This is non-negotiable, so we needed to work around the requirement.

The folks – in particular Walter Tak – on the Red5 mailing list pointed me in the right direction: Make another IP (or two) for Red 5 to run under.

IIS was already using ports 80 and 443, so the system administrator made two additional IPs for Red5 to use, one for rtmp and one for http. He then changed the settings in the Default Website Properties in IIS Manager: In Web Site Identification: IP Address, instead of (All Unassigned), he selected the single IP which we wanted IIS to listen on. We did not want IIS to interfere with port 80 on the IPs used by Red5.

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