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AXIS Q9307-LV Dome Camera
The web interface
Select the bitrate reduction Strength:
• Off: No bitrate reduction.
• Low: No visible quality degradation in most scenes. This is the default option and it can be used in all types
of scenes to reduce the bitrate.
• Medium: Visible effects in some scenes through less noise and a slightly lower level of detail in regions of lower
interest, for example, where there's no movement.
• High: Visible effects in some scenes through less noise and a lower level of detail in regions of lower interest, for
example, where there's no movement. We recommend this level for cloud-connected devices and devices that
use local storage.
• Higher: Visible effects in some scenes through less noise and a lower level of detail in regions of lower interest,
for example, where there's no movement.
• Extreme: Visible effects in most scenes. The bitrate is optimized for smallest possible storage.
Optimize for storage: Turn on to minimize the bitrate while maintaining quality. The optimization does not apply to the stream
shown in the web client. This can only be used if your VMS supports B-frames. Turning on Optimize for storage also turns on
Dynamic GOP.
Dynamic FPS (frames per second): Turn on to allow the bandwidth to vary based on the level of activity in the scene. More
activity requires more bandwidth.
Lower limit: Enter a value to adjust the frame rate between minimal fps and the stream default fps based on scene motion. We
recommend you to use lower limit in scenes with very little motion, where the fps could drop to 1 or lower.
Dynamic GOP (Group of Pictures): Turn on to dynamically adjust the interval between I-frames based on the level of activity
in the scene.
Upper limit: Enter a maximum GOP length, that is, the maximum number of P-frames between two I-frames. An I-frame is a
self-contained image frame that is independent of other frames.
P-frames: A P-frame is a predicted image that shows only the changes in the image from the previous frame. Enter the desired
number of P-frames. The higher the number, the less bandwidth is required. However, if there is network congestion, there could
be a noticeable deterioration in the video quality.
Bitrate control
• Average: Select to automatically adjust the bitrate over a longer time period and provide the best possible image
quality based on the available storage.
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• Maximum: Select to set a maximum instant bitrate of the stream based on your network bandwidth.
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• Variable: Select to allow the bitrate to vary based on the level of activity in the scene. More activity requires more
bandwidth. We recommend this option for most situations.
Orientation
Mirror: Turn on to mirror the image.
Audio
Click to calculate the target bitrate based on available storage, retention time, and bitrate limit.
Target bitrate: Enter desired target bitrate.
Retention time: Enter the number of days to keep the recordings.
Storage: Shows the estimated storage that can be used for the stream.
Maximum bitrate: Turn on to set a bitrate limit.
Bitrate limit: Enter a bitrate limit that is higher than the target bitrate.
Maximum: Enter the maximum bitrate.
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