Why isn't the picture very big?
Videostreams are different than television broadcasts. since they are
transmitted via the internet, they have to follow different rules and
restrictions. One of those restrictions is called bandwidth. Everyone that uses
the internet is confined to bandwidth restrictions whether you realize it or
not. Most people gain access to the internet by use of a cable modem. Cable
modems will usually allow you about 400K of bandwidth. MPHC streams are designed
to use about 193K of bandwidth. The streams are also designed to step down in
size if the the network should slow down for any reason. Speeds can range
anywhere from about 28K to the full 193K. The lower the connection speed, the
poorer the videostream will be and the smaller it will be. The full 193K stream
will produce a picture that is about 4 by 5 inches in size or 1/4 of the screen.
You can adjust this to either full-screen or 200%. Clicking "view"
on the menu bar of the media player and then "full-screen" will give you a full-screen picture (usually not
very good) or clicking "view" then clicking "video-size"
then "200%", will give you a picture twice the size of the original. This size isn't too bad but still won't be as good as the
optimal which is 100%. Experimenting won't hurt anything though so go ahead and
try it out.
Media Player 11 Tips
Media Player 11 has a few default
settings which can be frustrating. It's not as user friendly as the older
versions when it comes to changing the video size. Change the video size
as follows:
Right-click the upper left corner of the media player 11 window. Select
"view" from the menu. Select the "video size" option then
uncheck "fit to video player on resize". Select the desired size (100%
is usually best).
Why doesn't my media player stream the
full 193K?
Some networks do not provide a
reliable bandwidth infrastructure. The media player samples the available
bandwidth when first connecting and if it detects any instability at the higher
speed, it will automatically step down to the most stable speed. Many times,
these instabilities are of very short duration but the media player will adjust
accordingly anyway. You can sometimes fool the player into operating at the
higher speed under these circumstances by making the following settings: with
the media player running, select "tools" on the media player menu bar
then select "options" then select the "performance" tab. The
performance tab window will have an option under connection speed - select the
"choose a connection speed" option and then choose "DSL/Cable
(256 kbps) under that. The performance tab will also have two options under
network buffering. Select the "set network buffering" option and set
the time to 30 seconds. Note: This will cause the
media player to take a much longer time buffering but it will also help
stabilize your picture at the higher connection speed. The buffer is basically a
pool that the player can draw from when the connection speed is too slow.
Why does an error window come up
during the streaming session that indicates the player can no longer find the
server?
This window is actually telling
the truth. The player can no longer find the server which can indicate an error
on our end or it can be the result of an internet connection that has slowed
down so much, that the media player thinks the server has disconnected. Close the error window and then restart
the player by clicking on the play arrow toward the bottom of the player window.
Usually, the player will start buffering at this point and play the stream
again. Remember, you have to wait for the buffer to reach 100% before the player
can start. If you have set your player to a larger buffer size as instructed in
the previous paragraph, this will take as least as long as what you have set the
time to.
Should this not work, then close the player window (not the
browser window) and click the start button located on the confirmation page that
should still be showing once you close the player window. Again, the player will
buffer and should start playing.
Should the second step not work, then close the player and
browser window and restart the browser, go to our home page (http://www.heds.org)
and restart the broadcast session just like you did in the beginning and see if
that works.
The worst case scenario would require a reboot of the
computer and selecting the broadcast stream as at the beginning.
Why does the audio and/or Video jerk
around or disappear at times?
There is only one answer, and
that is a slow internet connection. Make sure you have set the options as
described above and that is about all you can do. Sometimes, you can stop and
restart the player to clear things up. Other than that, the stream is
being archived during the broadcast and you can come back at a better time
(better time for network congestion that is) and view it.
I am using a laptop with a projector
connected to it. Why does the projector show such poor video?
Unfortunately, this is a problem
inherent with laptops. For lack of a better description, laptops use two
different display drivers. One of the drivers runs the laptop display and the
other runs the port you hook the projector to. Many laptops try to run both
displays with the same driver even though it has two. When the laptop does this,
it causes the videostream to show at the full screen setting which isn't very
clear due to bandwidth issues. You can force the laptop to use the other driver
which would make the projector display what you are seeing on your laptop and
hence you can select the 100% size which would deliver the best picture.
However, this procedure can be different depending on the make of the laptop.
Here is the easiest and most common way:
Every laptop has the capability of switching to just the
laptop screen, both the laptop screen and the projector, or just the projector.
This switch is accomplished from the keyboard by simultaneously pushing the
"Fn" key (usually located in the lower left part of keyboard) and the
"LCD/CRT" key (usually the F8 key). "Fn" and
"LCD/CRT" are usually a different color on the key. Each time you make
this selection make sure you wait for a few seconds for the laptop to stabilize
to the new setting (20 seconds is a normal maximum). Force the laptop to use
just the monitor port only by following the above step.
Note: when the laptop is using just the monitor port, you
will not see anything on the laptop display and you will have to use the laptop
by watching the projector display since that is the only thing you will see.
However, this will allow you to select something other than "full
screen" for viewing.
Internet Explorer 7 Tips
Internet Explorer usually works
without any problems but I have come across some cases where it keeps asking for
the username and password to access our videos and modules. Anything that
involves access or security can be cleared up or at least improved by doing the
following:
After the Internet Explorer 7 window comes up, go to the upper right hand corner
of the window and select "tools" then "internet options"
then "security". Select "internet" then "custom
level". Try setting to "medium" or "medium-high". On
this same window, under settings, and under "user authentication"
(scroll all the way to the bottom), select "automatic logon with current
username and password".
Another option to try is to add the www.heds.org
website to your trusted sites. This is accomplished by:
After the Internet Explorer 7 window comes up, go to the upper right hand corner
of the window and select "tools" then "internet options"
then "security". Select "trusted sites". Select the
"sites" button and add "http://www.heds.org"
and "mms://mphcs2.heds.org" to the
"websites" window. You usually have to deselect the option
"Require a server verification (https:) for all sites in this zone".
If for some reason, one of these changes causes another application to not work,
just go back and reverse your steps till you find the problem.
Windows VISTA Notes
I haven't loaded windows VISTA in
anything yet. I usually like to wait about a year for everyone else to discover
the glitches that new Microsoft software invariably has. I received a call from
an individual that had purchased a new system with VISTA on it and everything
worked with our site once we figured out how to load Adobe Reader on it. This
all happened over the phone and she told me that someone else had tried to load
Adobe for her and was not successful. I told her how to do it over the phone but
I did notice that there were more warning boxes coming up asking if she wanted
to load the application or not. However, it can be done and everything should
work after that. I will probably have more comments once I have a chance to work
with it myself.
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If you have questions, contact the MPHC office:
605-720-7117 |