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DLR3-XXN/XX
Administration, continued
Determining the memory requirement of a recording
The amount of memory recorded video sequences will take up depends on the following factors:
picture quality
number of images per second
duration
The memory requirement is calculated by this formula:
Memory requirement = picture size x duration of recording x images per second
Example calculation of CIF resolution (PAL):
Picture
quality
Picture
size
Duration of
recording
Approx. memory space
5 images/s 10 images/s 25 images/s
Basic 2.4 KB 24 hours 1.04 GB 2.07 GB 5.18 GB
Standard 4.8 KB 24 hours 2.07 GB 4.15 GB 10.37 GB
High 9.6 KB 24 hours 4.15 GB 8.29 GB 20.74 GB
Very high 14.4 KB 24 hours 6.22 GB 12.44 GB 31.10 GB
Example calculation of 2CIF resolution (PAL):
Picture
quality
Picture
size
Duration of
recording
Approx. memory space
5 images/s 10 images/s 25 images/s
Basic 4.8 KB 24 hours 2.07 GB 4.15 GB 10.37 GB
Standard 9.6 KB 24 hours 4.15 GB 8.29 GB 20.74 GB
High 19.2 KB 24 hours 8.29 GB 16.59 GB 41.47 GB
Very high 28.8 KB 24 hours 12.44 GB 24.88 GB 62.20 GB
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