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Podcasting catching on in MUSC
classrooms
by George Spain
Center
for Academic and Research Computing Services
With a few dollar's worth of equipment, a tiny bit of technical savvy,
and a classroom wired with the right stuff, lectures can be heard later
through the process of podcasting.
A recent Catalyst article (http://www.musc.edu/catalyst/archive/2007/co8-31ipod.html)
told of creating audio podcasts on various health related topics for
public consumption through iTunes or other methods of listening to
webbased sound files. These mini broadcasts are popular and an MUSC
team recently won a national award for producing them.
Classroom podcasting takes the art a step further: synching the
professor’s live lecture with an accompanying slide show (PowerPoint)
for later playback through a news feed reader (built into some
browsers) or through the popular iTunes music service sponsored by
Apple Inc.
Michael Schmidt, Ph.D., professor of microbiology and immunology, an
early and vocal proponent of podcasting, demonstrated the fairly simple
steps involved in creating a podcast from a lecture using a slide show
created in PowerPoint.
In Room 100 of the Basic Science Building, he sets up his notebook
computer on the podium, plugs in a microphone receiver, clips on a
wireless mic to his tie, drops his prepared PowerPoint presentation
onto the icon for Profcast, and clicks Profcast’s record button. From
that point it’s him, his material, and his 150 or so students.
At lecture’s end, Schmidt clicks the mouse that stops the recording and
creates a file that contains a synchronized version of the lecture with
the slide show. With a few more clicks a QuickTime movie is ready for
delivery to students via e-mail. Alternatively, when he gets back to
his office, Schmidt sends the file to an MUSC Web site (http://netcasting.musc.edu)
where further processing turns the lecture into a podcast ready for
downloading into iTunes or a webbrowser.
“The quality and scalability of Profcast is amazing. There are several
alternatives for students to play the content. We’ve had very good
initial response from students and professors about the final product,”
Schmidt said.
To get a little technical, Profcast produces a m4b file. This file is
also known as an “audiobook” format. The file contains not only a
synced version of the lecture with slide show, but a method to jump to
any point in the slide and view the presentation from there.
For example, when the students download a one-hour lecture containing
40 or so slides, they can skip to any part of the lecture, back and
forth to examine the contents.
Podcasts themselves are in the universally available Really Simple
Syndication (RSS).
The universality of format means a flexibility in distribution. Both
QuickTime and iTunes are cross platform, meaning that they can be
viewed by those who own a PC or a Macintosh. There’s no requirement for
students to spend any extra cash to view these formats, because both
programs (distributed by Apple Inc.) are free downloads.
“You don’t need to shell out for an iPod or any other type of RSS feed
readers. You can go to our MUSC iTunes site and, using your NetID and
password, subscribe to the posted lectures,” said Schmidt.
Several years ago, Apple set up what’s know as iTunes U (http://www.apple.com/education/itunesu/).
This is a way for universities around the country to make their content
available to anyone. Some universities that have posted their content
on iTunes U are Duke, Stanford, Yale, and Berkeley, among others. While
MUSC hasn’t yet published it site on the iTunes list, its content is
still available to any student of MUSC through http://itunes.musc.edu/. Because of
copyright concerns, the course materials offered through MUSC are
guarded by NetID login.
From the itunes.musc.edu site, under Guest Login click the link that
reads, Take me to MUSC on iTunes U, where public offerings with
access to non-password protected items are available. These are mostly
welcoming audio files in mp3 format.
Students can use the itunes.musc.edu site to enter their NetID and
password and see all the course materials that are available to them,
based on their college of study. Many of the offerings are voice-only
(mp3), while some are enhanced audiobooks containing voice and
synchronized slide shows captured live during a lecture.
The college to make the most use of audiobooks podcasting is the
College of Dental Medicine. CDM currently lists more than 60 content
offerings, while the College of Medicine currently list 23. Under CDM,
Schmidt lists more than 20 podcasts on the subject of Dental
Microbiology alone.
While podcasting lectures haven’t spread throughout the university’s
curriculum yet, the popularity of the system and the easy of production
by instructors is enticing many to consider experimenting with the
process.
Friday, Oct. 12, 2007
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