Appendix C: Record Duration - Speco DVR-4TN User Manual

Appendix C: Record Duration

The record duration relates to recording rate, image quality and HDD capacity. Refer to the
following table.
NOTE: Record duration times are based on actual tests and represent average file
sizes. Performance may vary depending on specific installations and use. Audio
recording requires 8 KB per second (or 0.7 GB per day) for data storage.
Please refer to our recording time calculator on the Speco website for other possible
calculations. http://www.Specotech.com
Number of Days of Recording 720 x 480 @ 30PPS (without Audio)
Recording Rate
Total Total
Images Per Images Per
Second Second
NTSC PAL
160 GB Internal Storage
30 25
15 12.5
7.5 6.25
300 GB Internal Storage
30 25
15 12.5
7.5 6.25
600 GB Internal Storage
30 25
15 12.5
7.5 6.25
DVR-4TN/8TN/16TN/16TS/16TT Series
SPECO TECHNOLOGIES 01/08
Low
NTSC PAL NTSC
(8 KB) (8 KB) (11 KB)
7.5 9.0 5.5
15.0 18.0 11.0
29.9 35.9 21.9
14.0 16.8 10.3
28.1 33.7 20.6
56.1 67.3 41.2
28.1 33.7 20.6
56.1 67.3 41.2
112.2 134.7 82.3
Support Tools
Recording Quality Mode
Fair Mid
PAL NTSC PAL
(11 KB) (14 KB) (14 KB)
6.6 4.3
13.2 8.7
26.3 17.3
12.3 8.1
24.7 16.2
49.4 32.5
24.7 16.2
49.4 32.5
98.8 65.0
User's Manual
High
NTSC PAL
(17 KB) (17 KB)
5.2 3.6 4.3
10.4 7.2 8.6
20.8 14.3 17.2
9.7 6.7 8.1
19.5 13.4 16.1
39.0 26.8 32.2
19.5 13.4 16.1
39.0 26.8 32.2
78.0 53.7 64.4
Best
NTSC PAL
(20 KB) (20 KB)
3.0 3.7
6.1 7.3
12.2 14.6
5.7 6.9
11.4 13.7
22.9 27.4
11.4 13.7
22.9 27.4
45.7 54.9
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