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