Table of Contents
Advertisement
products, all of our product documentation is available on the web. Go to www.vbrick.com/
documentation to search or download VBrick product documentation.
Getting the Best Video
VBrick recognizes that video quality is a subjective concept that ultimately depends on a
variety of factors. VBrick's philosophy is to make our network appliances as flexible as
possible so they can be used effectively in different applications on a wide variety of
networks. This means you can configure an appliance for maximum performance but you can
also configure it in such a way that it will only work well in a very limited environment. Video
quality is also relative. What is acceptable quality for a surveillance application on a
low-bandwidth network is most likely unacceptable for a corporate presentation or a two-way
video conference on a high-speed LAN. Much depends on your network, the bandwidth you
have available, and the audience you are trying to reach.
VBrick tries to anticipate as many obstacles and limitations as possible and provides custom-
designed MPEG-4 and WM (Windows Media) templates for a variety of applications. These
templates are designed to provide the highest quality audio and video—using bit rate, frame
rate and resolution settings that are tailored for a variety of common network environments.
We encourage you to override specific template settings in order to meet the unique
requirements of your own site, but in doing so, be aware that you can also degrade the quality
and/or performance of the audio and video you are trying to deliver.
For best results, start with a pre-built template and then adjust the bit rate, frame rate,
resolution, and other parameters with care. Experiment with different settings to see the
trade-offs in quality and performance. You can track your changes by periodically saving the
configuration file using the
and video quality is still less than you would expect, re-apply one of the standard templates
and try again. Keep in mind that the VBrick appliance is stable, reliable and flexible. In most
cases a small amount of experimentation will help you find the configuration settings that will
deliver the best audio and video your network can support. For more information, or help
configuring your appliance, contact VBrick Support Services.
Note VBrick has made every effort to ensure that the information in this document is
accurate at the time of publication. However if we find are errors or omissions, VBrick
reserves the right to make changes without notice. To see the latest documentation for
this product go to www.vbrick.com/documentation
Font Conventions
is used to describe dialog boxes and menu choices, for example:
Arial bold
Programs > VBrick
Courier fixed-width font
Courier bold fixed-width font
commands.
This bold black font is used to strongly emphasize important words or phrases.
Folder names and user examples in text
User input in text
Italics are used in text to emphasize specific words or phrases.
viii
option on the Maintenance page in IWS. If the audio
Read/Write
is used for scripts, code examples, or keyboard commands.
is used for user input in scripts, code examples, or keyboard
are displayed in this sans serif font.
is displayed in this bold sans serif font.
Start > All
Preface
Hide quick links:
Advertisement
Table of Contents
