Bandwidth - Axis 213 PTZ User Manual

Bandwidth

As there are many factors affecting bandwidth. They are:
• the image resolution
• the image compression
• the frame rate
• the MPEG-4 object type
• the MPEG-4 GOV structure
• the audio settings
There are also factors in the monitored scene that affect the bandwidth. These are:
• the amount of motion
• the image's complexity
• the lighting conditions.
For MPEG-4, if there is only limited bandwidth available, and if this is more important than the image
quality, using a constant bit rate (CBR) is recommended. Use a variable bit rate (VBR) if the image
quality needs to be maintained at a higher level. If supported on the network, consider also using
MPEG-4 multicasting, as the bandwidth consumption will be lower.
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