136
Enhancing Video
Number of Cameras and Audio
Doubling the number of cameras roughly halves the length of a video archive.
Audio
At default recording values, adding audio has roughly the same effect as adding 4 cameras.
If enabled, use
and find the number of cameras connected to your unit. Then go
to the next line to find out what the estimated duration is for those cameras with audio
enabled. At higher recording values, audio takes a smaller percentage of the archive.
Scheduling Cameras
Scheduling can lengthen a video archive. One example of effective scheduling is for the
recording of transactions that do not occur 24/7, as shown in
. See
Table 7-4
Effect of the Number of Cameras on the Video Archive
a
Cameras
(Recording)
Duration of Video Archive
(Estimated in Days)
Oldest Available Video
(Rounded to Shortest Time)
1
1153
3 years, 1 month
4
288
9 months
8
144
4 months
12
95
3 months
16
72
2 months
16 + audio
57
1 month
a
Resolution = 320 x 240. Frame Rate = 1. Quality = 8. Storage = 500 GB.
Table 7-5
Effect of Camera Scheduling on the Video Archive
Recording
(Hours / Days)
Recording
Suspended (%)
Video Archive
(in Days)
Oldest Avaialble Video
(To Closest Date)
24/7
a
0.0
1153
3 years, 1 month
12/5 + 24/2
b
35.7
1793
4 years, 11 months
12/7
c
50.0
2306
6 years, 3 months
8/5
d
76.2
4842
13 years, 3 months
a
Default value: every day, all hours, for one camera. Resolution = 320 x 240. Frame
rate = 1. Quality = 8. Storage = 500 GB.
b
Nights and weekends.
c
Nights only; all week long.
d
Business hours, five days a week.
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