Recording and Bandwidth

While the Recording Schedule dialog box sets when and what cameras record, the Recording and Bandwidth dialog box sets how long recorded video is stored.

In the Recording and Bandwidth dialog box, you can change the data aging settings and set the maximum record time for each connected camera. The amount of data aging that is available depends on the camera that is connected to the system.

  • For JPEG2000 or JPEG compression cameras, data aging is available at three rates:

    • High Bandwidth keeps recordings at their original quality.
    • Half Image Rate discards half of the recorded data to make room for new recordings.
    • Quarter Image Rate keeps 1/4 of the original recorded data so that you can still see older video.

  • For H.264 cameras that support data aging, data aging is available at two rates:

    • High Bandwidth keeps the original high quality video and the secondary stream of low resolution video.
    • Low Bandwidth only keeps the secondary stream of low resolution video.

    NOTE: The data aging can only occur when the secondary stream is enabled.

  • 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.

  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.
    • To change the data aging settings for all linked cameras, move the slider for one linked camera and all linked cameras will be updated.
    • 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.

 

 

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