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For JPEG2000 or JPEG compression cameras, data aging is available at three rates:
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High Bandwidth
keeps recordings at their original quality.
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Half Image Rate
discards half of the recorded data to make room for new recordings.
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Quarter Image Rate
keeps 1/4 of the original recorded data so that you can still see older video.
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For H.264 cameras that support data aging, data aging is available at two rates:
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High Bandwidth
keeps the original high quality video and the secondary stream of low resolution
video.
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Low Bandwidth
only keeps the secondary stream of low resolution video.
NOTE:
The data aging can only occur when the secondary stream is enabled.
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For H.264 cameras that
do not
support data aging, only the
High Bandwidth
video is kept.
By default, the system is set to keep recorded video for the maximum amount of time based on the available
storage.
At the bottom of the Recording and Bandwidth dialog is the following statement:
Total record time estimate is based on constant recording
The retention time is determined by the
Max. Record Time
setting and the amortized data rate. Since the
system can only provide an estimate of the data rate for the full retention period, the actual retention time can
vary from the Max. Record Time setting by up to 30 minutes.
NOTE:
The time shown in the Total Record Time column is an estimate only.
1. In the server Setup tab, click
.
The Recording and Bandwidth dialog box is displayed.
The Data Aging column shows an estimate of the recording time that is available at each image rate,
given the amount of space on the recording device.
2. In the Data Aging column, move the sliders to adjust the amount of time video is stored at each image
rate.
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To change the data aging settings for all linked cameras, move the slider for one linked camera
and all linked cameras will be updated.
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To change the data aging setting for one camera, break the camera's link to other cameras by
clicking the
icon to the left of its name, then make your changes.
3. In the
Max. Record Time
column, manually enter a maximum record time or select one of the options from
the drop down list for each camera.
NOTE:
If the time estimated in the Total Record Time column is significantly shorter than what is set in the
Max. Record Time column, the camera's actual recording time will be closer to the Total Record Time
estimate.
4. Click
OK
.
Setting Data Aging
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