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The
ViewStation FX set top video system provides TV-quality
video for the most demanding video communications needs.
Embedded streaming capabilities let you capture and send
meetings, presentations or broadcasts to anyone equipped
with a Web browser. Polycom's unmatched full duplex sound
and tracking technology make video meetings effortless,
natural, and push-button-easy. Audio flexibility and
custom application support are extensive.
Video Quality ViewStation has a
tremendous amount of power. Polycom uses that power in
two ways for video. At high bandwidths (512 kbps up to
1.922Mbps), it delivers TV quality, 60 fields video, for
an outstanding video image and complete motion capture!
The secret is capturing both fields, which comprise a
frame. (For NTSC, there are 30 frames per second). By
capturing both fields, the resolution is greatly
heightened and the motion is captured much more
accurately. The resulting image is amazingly brilliant.
The
second benefit of the increased horsepower is the
increased utilization of ITU defined Annexes that are the
compression tips and tricks used to optimize the limited
bandwidth for delivering the best possible picture
possible. At Polycom, we emphasize picture quality above
all other aspects of video. We also realize the
importance of smooth motion handling. Because we are not
willing to comprise on either, we cannot sacrifice the
overall quality of the picture to deliver 30 frames per
second at lower bandwidths than 336 kbps.
Audio Quality
The audio performance of a video communication is
critical to the user's perception of a good
videoconference. If the audio signal breaks up, or
becomes out of sync with the speaker's lips, the
videoconference is not contributing to clarity of
communication.
Polycom supports numerous algorithms ranging in
capability from G.711, (low bandwidth (7 kHz) and high
bit rate (48, 56, 64 kbps)), to G.722, (high bandwidth (7
kHz) and high bit rate (48, 56, 64). The ability to
automatically adjust the quality of audio is important
when supporting low bandwidth calls. When more bandwidth
is available, the codec wants to use more bandwidth to
get better audio.
Streaming
Streaming is the process of sending audio and video
over a local area network (LAN) from one source to many
viewers. You can use streaming to conduct live broadcasts
of meetings or events.
For example, employees can view a live speech from
your company's CEO. The ViewStation FX and VS4000 allow
on-the-fly streaming capability! It's as easy to turn on
as placing an audio call while in a videoconference.
Documentation
ViewStation FX
ViewStation EX /
FX / VS4000 Version 6.0.5
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