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Session Summary

Archived Lectures on the Internet - Getting Started

 

Stephen Fath, Ph.D.
Director of Biomedical Information Technology
University of Texas Health Science Center at Houston

Mederick Woods, B.S.
Programmer Analyst
Office of Academic Computing
University of Texas Health Science Center at Houston

January 21, 2004

    

The preferred method for archiving lectures on the Web is through use of streaming video, and this was the focus of our presentation.  This method provides almost unlimited access to audio-visual resources from anywhere in the world, is cost effective in comparison with other methods of content delivery, and saves time for both producers and consumers of the content thus increasing productivity for all involved.

After defining what is and what is not streaming media and presenting several examples of how the technology is being used at The University of Texas Health Science Center at Houston, the hardware and software necessary to produce streaming video were introduced.  Although numerous vendors are beginning to enter the market, the “Big Three”, Real Networks, Apple QuickTime, and Microsoft Windows Media account for the majority of streaming media platforms. 

Getting started to archive lectures requires an audiovisual source such as a camera and microphone or video tape, a way of “encoding” that information into a streaming format, and a way of reliably delivering the content.  Although large amounts of money may be invested acquiring systems to do these things, it is really not necessary to spend a fortune to provide such programs.  In most cases existing personal computers are adequate for both encoding and streaming for small audiences.

Network capacity and reliability are extremely important and these become more so with larger audiences.  This applies not only to the server end of the system but also to the client side.  Minimally, clients should have DSL or cable modem connections if they expect a quality experience.  Depending on the network configuration and whether the stream is presented live or on-demand, one can also consider the viability of “multicasting” as a way of reducing the load on the network.

Beyond technical considerations, other issues need to be addressed in order to implement an effective media streaming program.  Funding may not be so important in the formative stages of the project, but the need will definitely increase as people find out about the service.  Some things to consider:  Who will capture the content?  How will they do that?  Are there already people doing similar jobs who might be re-trained?  When the point is reached where more capacity is needed, how will funds be acquired?  Will more external bandwidth incur additional costs as the services increase?

Faculty support for archived lectures is critical to the success of the project, however do not expect your efforts to be greeted enthusiastically by all.  Some will feel threatened by the activity, but experience indicates most will take a wait and see attitude.  Legitimate concerns will be raised.  Effects of the program on attendance are always questioned, but more important is the concern over copyright issues.  The latter discussion usually encompasses two concerns:  protecting the ownership of original material and the fair use in presenting the materials of others.  Anticipating and preparing thoughtful answers to such questions is helpful in garnering support for the project.

In this one-hour webcast audio seminar, Dr. Fath introduced participants to the technology and logistics of archiving lectures and addressed some common concerns of faculty that are sure to be encountered.  Slides used in this presentation (see hyperlink above) contain several points of information and the reader is encouraged to view these for information specifics.

View Slides from this Presentation

 

 

 


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