Axis Communications 230 MPEG-2 - Manual (Page 57)

AXIS 230 Bandwidth 57
Appendix G - Bandwidth
As different networks have different characteristics and different amounts of bandwidth
available, the AXIS 230’s video and audio settings may need to be adjusted to suit the
prevailing conditions.
The Video Quality Level
The video quality level describes how much video data is transferred per second, and can
be set in the range 1-7 (lowest to highest). Whether or not you should use the highest
available level depends on the answers to a few questions:
Does your application actually need a video stream at the highest quality? Try viewing the
live video stream and uploading MPEG-2 files using several different quality levels.
Are there other bandwidth-dependent services running on the same network? Will the
quality level used by the AXIS 230 cause problems for these services?
How many clients are likely to be viewing the video stream at any one time? The
maximum number of (unicast) viewing clients on a local area network is 3.
Video Quality vs. Bit Rate
The quality of the video stream in relation to the bit rate is roughly illustrated by the
following graph.