Axis M32-LVE Series Manual page 34

AXIS M32-LVE Network Camera Series
The device interface
Resolution : Select the image resolution suitable for the surveillance scene. A higher resolution increases bandwidth
Resolution Resolution
and storage.
Frame rate rate: To avoid bandwidth problems on the network or reduce storage size, you can limit the frame rate to
Frame Frame rate
a fixed amount. If you leave the frame rate at zero, the frame rate is kept at the highest possible rate under the
current conditions. A higher frame rate requires more bandwidth and storage capacity.
Compression : Use the slider to adjust the image compression. High compression results in a lower bitrate and
Compression Compression
lower image quality. Low compression improves the image quality, but uses more bandwidth and storage when
you record.
Signed video Signed Signed video : Turn on to add the signed video feature to the video. Signed video protects the video from video
tampering by adding cryptographic signatures to the video.
H.26x H.26x encoding H.26x encoding encoding
Zipstream Zipstream : A bitrate reduction technology, optimized for video surveillance, that reduces the average bitrate in an Zipstream
H.264 or H.265 stream in real time. Axis Zipstream applies a high bitrate in scenes where there are multiple regions
of interest, for example in scenes with moving objects. When the scene is more static, Zipstream applies a lower
bitrate, and thereby reduces the required storage. To learn more, see
Select the desired level of bitrate reduction:
• Off Off: No bitrate reduction. Off
• Low Low: No visible quality degradation in most scenes. This is the default option and it can be used in all Low
types of scenes to reduce the bitrate.
• Medium Medium : Visible effects in some scenes through less noise and a slightly lower level of detail in regions of Medium
lower interest, for example where thereʼs no movement.
• High High: Visible effects in some scenes through less noise and a lower level of detail in regions of lower High
interest, for example where thereʼs 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
• Higher Higher
interest, for example where thereʼs no movement.
Extreme : Visible effects in most scenes. The bitrate is optimized for smallest possible storage.
• Extreme Extreme
Dynamic FPS Dynamic Dynamic FPS (frames per second): Turn on to allow the bandwidth to vary based on the level of activity in the FPS
scene. More activity requires more bandwidth.
Lower limit Lower Lower limit : Enter a value to adjust the frame rate between minimal fps and the stream default fps based on limit
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 Dynamic Dynamic GOP (Group of Pictures): Turn on to dynamically adjust the interval between I-frames based on the level GOP
of activity in the scene.
Upper Upper limit Upper limit limit : Enter a maximum GOP length, that is, the maximum number of P-frames between two I-frames.
P P P - - - frames frames : Enter the desired number of P-frames. The higher the number, the less bandwidth is required. However, frames
if there are network congestion, there could be a noticeable deterioration in the video quality.
H.264 profile H.264 H.264 profile : profile
• Baseline Baseline : Use if the video management client doesnʼt support CABAC entropy coding. Baseline
Main: Use if the video management client supports CABAC entropy coding, to achieve higher
• Main Main
compression with maintained video quality. It requires more processing power to decode compared
to the baseline profile.
• High High: Use if the video management client supports CABAC entropy coding, to achieve even higher High
compression than with the main profile. It requires more processing power to decode compared to
the main profile.
Bitrate control control :
Bitrate Bitrate control
Reducing the bit rate with Axis Zipstream
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