Desktop Videophone & Conferencing -
Roles for Participants
Have someone give you a tour of a professional television studio. When
you return, make a chart of all the people at work there and what each
of their responsibilities was. Now think about the desktop computer in
your classroom of office. If you wish to videoconference between your desktop
computer and one more computers elsewhere on the network, you must take
on all those responsibilities. These responsibilities include what to do
when things are working well, and what to do when they do not. If you have
a class of students, different class members can take on different roles,
which not only makes the process easier, but keeps more students actively
involved in the process of learning and collaborating with each other.
Here are some basic titles and roles (job descriptions) for you
or a team:
-
Producer: Makes the call as which communication forms will be used, audio
or video, text chat window or whiteboard or some combination of these features
and determines whether one Videoconference computer at each site is sufficient
or whether more than that would be necessary. For example, one system might
be dedicated to the whiteboard at the full size of the screen and another
station used to display the video screens. Establishes who will be the
audience (participants) and has a variety of forms of contact information
on them, including the Internet Protocol number of the computer that they
will be using. Encourages participants to broadcast from a location with
a telephone so that there is a backup channel of communication of the broadcast
through the computer network is not operating properly to their site.
-
Personality: the on camera person working the script
-
Script Writer (lesson plan developer): prepares an outline ahead of time
as to what will be covered, what the content will be, with suggested forms
of interaction. This often requires prior to broadcast discussions with
other participants to have agreement on the focus of a broadcast.
-
Shooter (videographer): controls the camera, knows how to zoom, pan, change
camera position, focus, adjust for different light levels.
-
Video engineer: prior to broadcast, tests video, makes necessary changes.
(Lab needs 7500 so that can run tests and determine how well it is working.)
Discuss video feedback with video engineers at other sites as to quality
of reception. Monitors the video display during the broadcast when technical
difficulties are past for shot selection, and shot variety. That is, communicates
with the videographer to keep the screen visually interesting. The video
engineer also switches the various video sources. That is, if you want
to send what is on a videotape, a camera using the video in port would
have to be removed and the lead from the videotape machine connected. The
under the File menu, the Begin Broadcast command would be used.
-
Audio engineer: prior to broadcast, tests audio, makes necessary changes.
Discuss quality of reception with audio engineers at other sites. In general,
you should use MACE 3:1 compression setting. If your network seems paraticcularly
slow, try switching to MACE 6:1. Use the Sound Settings command in the
Settings menu to select a sound compression type.
-
Shared window or white board engineer: This person sets up graphics, images,
text, that needs placement. Controls the mouse to point to parts of the
whiteboard screen at the pace and direction of the script.
-
Keyboard assistant: This person has adequate typing skills and types the
necessary text at the request and pace of the Personality as working the
script proceeds.
-
Recording assistant: turns the taping or recording feature on and off and
tracks the available hard drive storage space.
-
Software engineer: prior to broadcast runs checkoff. Among other tasks,
finds and launches the program, makes sure that virtual memory is turned
off as leaving it on greatly slows down and reduces the quality of the
experience. This engineer may need to quit the conferencing software and
change the RAM settings to a higher value as the number of participants
increase. Determines how many other software programs are needed and in
what sequence and decides how many if any can run on the same computer
that is run the videoconference or whether a second computer is needed
and what software applications will run on which computer given the available
RAM and the CPU requirements. That is, some applications will require much
of the CPU and cannot therefore run on the same computer as the videoconference
software without degrading the videoconference audio and video. During
the broadcast, if technical problems are resolved, this engineer also manages
the file sharing process. On the Conferencing computer, there can be a
shared folder as a part of the Media Conference program, but other programs
can run alongside on the second computer, using applications like Fetch,
email with attachments, FTP, Netscape email with attachments and so forth.
An email program should always be running and even connected if bandwidth
will allow for backchannel communication when difficulties occur with conferencing
system.
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[Pageauthor: Houghton]