Unlike
previous “promising” technologies that did not live up to their
anticipated impact to advance teaching and learning (motion
pictures, television), digital video can make a big difference,
because it is becoming increasingly practical for a teacher to
produce and disseminate instructional material in the form of
“broadcast-quality” (not “postage-stamp”) digital video, with
simple equipment, without a steep learning curve, and at a
moderate cost.Recent improvements in
digital video codecs (compression/decompression algorithms) and
the use of digital video streaming servers (such as the Indiana
University Digital Media Streaming Service) make it practical to
send over the Internet “broadcast-quality” digital video to
computers with high-speed Internet connections, such as those at
Indiana University. Play some of the video clips that I have
placed on the I. U. Digital Media Streaming Server. See
section on
Instructional Video Clips.
Before you embark on digital video
production, you should ask yourself two questions:
1. Digital Video, Yes or No?
Is video the best way to enhance the
student's learning experience in your particular teaching
project, or are there better alternatives? You can find a
discussion of this issue in “Video
for Instructional Use” on the Web site of the Indiana
University Teaching & Learning Technologies Lab (TLTL).
Often a still picture is worth a
thousand words and is good enough. Surely the picture shown here
is more effective than a video clip on the same topic. Also, see
Fig. 5.83 (pp. 138-139) and Fig. 5.84 (p. 140) in Felice
Frankel’s book Envisioning Science: The Design and Craft of
the Science Image (The MIT Press, 2002) for beautiful
examples of instances in which a series of still photos is more
useful than video.
2. Do It Yourself or Farm It Out?
Farm it out?
Video material produced by experienced
professionals will be technically and artistically far superior
to video produced by me (and you?). The downside of farming out
is cost. For example,
Instructional Support Services - Media Production at
Indiana University charges about $5,000 for a 10-minute digital
video clip. Most of the cost is post-production labor. However,
you may
apply for funding to cover some or all of the cost.
Do it yourself? If you don’t have a camcorder or you have
an analog camcorder, go to
In a Hurry? Digital Video
in a Nutshell and
Raw Content Creation (Camcorders) within the “Production
& Distribution of Digital Video” section.
If you have a digital camcorder with an
IEEE1394 output (Apple calls it FireWire, Sony calls it
i.LINK) and an Apple computer of recent vintage, you can
get started without any additional investment in hardware or
software. However, I have zero hands-on experience with Apple
computers, and on this Web site I will stick to what I know, so
you Apple users please go elsewhere for specific information.
Sorry.
If you have a digital camcorder with an
IEEE1394 output and your operating system is Windows XP
Professional, you can start producing digital video after
investing as little as about $50 in an IEEE1394 interface for
your PC. See
In a Hurry?
Digital Video in a Nutshell.
The rest of the Digital Video section of my
Web site is targeted at amateur videographers (teachers). Go to
Digital Video Production & Distribution.