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Install
RealPlayer Software
from This Page! Make
your browser capable of viewing and listening
to the hundreds of video and audio files we have in this website.
By Gary Olsen,
a Media Designer and Webmaster for the District
otion
pictures are among the most exciting and compelling ways to tell
a story. Our Web site is all about motion pictures. Welcome to Dubuque
Community Schools Television, DCSTV! Through the power and technology
of streaming media over the Internet, we offer you video content
on a wide variety of topics ranging from special events to learning
moments. The World Wide Web is a powerful communication tool, and
video is a compelling medium with which we can tell our stories.
But like any evolving technology, there are going to be a couple
of hoops you have to successfully jump through to participate. To
take advantage of this technology, you must have the appropriate
computer hardware and software. You obviously got this far in our
website, and, possibly you already have the necessary configuration
on your computer to view videos which include a sound card and speakers.
Videos
on demand on the Internet is, unfortunately a concept ahead of our
time for many of us who must suffer through slow download speeds
via phone modems. But there is a growing number among us who have
access to high speed networks such as cable modems (i.e. Mediacom
Cable that serves families in our school district) and DSL (Digital
Subscriber Lines offered by your phone company). All of our teachers
have access to a high speed network in their classrooms, of course.
Our buildings have been wired for some time. And many of our parents
report that they may not have high speed access at home, but they
do have it at their work. For more information on your high speed
options for Internet access, contact your local phone company or
cable company, or one of the new wireless Internet providers setting
up shop in our community.
What
about Bandwidth?
We want to
make something absolutely clear: This technology is highly dependent
on available bandwidth. If you are connected to the Web via a dial-up
phone modem, and the best speeds you can obtain are less than 56
kbs (kilobits per second), you are not going to have the viewing
experience we intended. The videos will play poorly, haltingly,
or may not play at all. Of
course if you are used to working with cutting edge technology,
and can stand the delays (if it's a video featuring your child,
it will no doubt be worth the wait), then thank you for the effort.
But if you're a casual or curious viewer with a slow connection,
the experience can border on frustrating if not annoying as the
video sputters to a stop while more information downloads. We all
long for the day when we have sufficient, low-cost bandwidth at
our disposal where we can provide quality videos on demand. Meanwhile,
we will just have to endure. However, we've attempted to provide
you with some options.
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| The turtle downloads a complete
movie, no streaming. This is best for telephone modems. After saving this file,
you can play it with RealPlayer. The rabbit button
is a streaming movie. If you have high-speed web access such as DSL, it will begin
playing immediately. The rocket button is for high-speed networks (like our schools
have), DSL, and cable modems. It's the largest size streaming movie file with
full-stereo audio. Further instructions are below on how to play video and audio
files that appear on our website. |
We offer three
sizes of video files, for example, and the smallest movie downloads
in a non-streaming format since that seems to be the most productive
way to transfer a movie over a phone line. Streaming media just
doesn't work well over a phone modem. The middle sized and large
format movies, however, do stream. This means they usually begin
playing immediately upon clicking the button. So, if you're on a
phone modem, and you click on the turtle, you will be asked where
you want to save the movie on your hard drive or suitable storage
medium. Even small movies can represent a large file size. And you
also must have RealPlayer to play the movie. That software is available
in the right hand column of this page. Follow the instructions,
and you'll be good to go.
On
the other hand, a large percentage of our available audience does
have access to high-speed Internet connections either within the
district, from work, or even at home with the growing list of subscribers
to services that provide cable modem access. All of our classrooms
have high-speed access, so our students can see the video clips
with little trouble on computers in our libraries, learning centers,
and even on several of our teachers' desks.
What
do I need to view the videos on my computer?
Your computer
must be equipped to play multimedia files, and most computers purchased
within the last five years are multimedia capable unless you are
in an office where sound cards, for example, have been removed.
And, if you are using a Windows NT operating system and network,
chances are you may not have administrative privileges to install
RealPlayer on your computer's hard drive. There may be other computers
in your area, however, that are equipped to handle multimedia. It's
worth the effort to find one. Ask your Systems Administrator or
Help Desk for assistance and information before you embark on your
quest.
For you who
are experienced with our Audio Essays and Sound Safaris on our Web
site, you already have RealPlayer, which is a free (advertising
supported) application downloadable from the RealMedia Web site.
The same RealPlayer allows you to watch our videos! Our preferred
method of delivering audio and video files to you via our Web site
is RealPlayer, which uses a Web browser "plug-in"
technology, the component of which you must download to automatically
hear our Audio Essays or Video Adventures files every time you click
on them.
How this works
is quite simple. When you are in the Dubuque Schools Web site, and
click on a button to launch a Video Adventure, your browser software
automatically launches RealPlayer from inside your browser window.
A smaller player window pops up on your desktop with complete video
controls just like a VCR (only better). The software you need to
become video capable is available free from RealMedia's Web site.
But read the instructions below carefully before your proceed.
Performance
Expectations
Performance
and download delays depend on your online service. If you have phone
modem access, and generally experience download performance of 28.8
to 33 megabits per second, the delay from when the RealPlayer application
launches on your desktop and the video begins playing can take longer
than if you have a cable modem or other form of high speed access.
With Mediacom @home, for example, there is very little delay, and
a typical video clip begins playing within seconds of you clicking
on the video.
If you are
on a network, such as the Dubuque School District Wide Area Network
that provides Internet service to all of our school buildings and
classrooms, playing videos on our Web site is almost instantaneous.
However, not all computers in the district are equipped with sound
cards and speakers, and some don't have the appropriate software
onboard because they may be in a lab or classroom setting where
adding software and utilities to the computer's C-drive cannot be
done without technical assistance or administrative permission.
See your building's Media Specialist for more information and help.
What
is Streaming Video?
The
Internet is a vast network of computers all connected by a wire
(there are a growing number of wireless access points). This network
in technical terms is described as a "packet-based" network,
which means data is transferred from one computer to another on
the network in small packets. By dividing the data into smaller
packets that are recompiled on the destination computer allows for
more data traffic on the network, and it helps a computer with limited
random access memory to store the downloaded data to its hard drive
while it downloads more data. Data is delivered in bursts and not
a continuous stream.
Digital
media, like all computer data, is comprised of numerical code, the
volume of which is proportionate to the complexity of the data being
transferred through the network. Images on your computer are comprised
of much more data than text, for example. Video images, as you might
imagine, are among the largest data files you can transfer. They
contain sound as well as image data. Until recently, to transfer
a video file from one computer to another required that the entire
file be transferred from the host (that would be us) to the client
(you), and the video couldn't play until it was entirely transferred
to your computer. Depending on connection speed, even a short video
of a few seconds may take several minutes to download before it
begins playing.
Streaming technology
allows a properly equipped browser to begin playing the video on
the screen while it still downloads the rest of the video file in
the background. Making use of your computer's memory and a temporary
cache file it creates, the data appears to stream into your computer.
In reality, the data is still in packets. When the video is finished
playing, the data is flushed from your computer which relieves you
of the burden of storing all of these data files which would rapidly
take up valuable space.
Now
you know more than most about this exciting technology. We at the
school district are continually experimenting, producing, and in
large part having the time of our lives. Students and teachers are
thoroughly involved in motion picture making, and it stimulates
a love of learning. Plus, movie making is the ultimate in collaborative
art forms. Movies in many ways have become the ultimate storytelling
and instructional medium.
One of the
best examples of motion pictures as a learning tool can be found
at Fulton Elementary under the direction of Jeff Dyer. Using green
screen technology as sophisticated as that found in Hollywood, students
are able to transport themselves to ancient Rome utilizing a scale
miniature of the Roman Coliseum art students built with their own
hands, or travel through the universe in a space ship visiting the
planets, or running through a primordial jungle being pursued by
a tyrannosaurus rex.
So grab your
mouse and click on some of the links in the archive at right, and
enjoy the collective visual storytelling talents of an entire school
district... Dubuque Community Schools in Dubuque, Iowa.
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