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Digital Video Recorder User Manual

108

Appendix B Calculation of Recording Capacity

Users can calculate the size of hard disk according to the saving time and DVR recording settings. The DVR uses fixed

video bit rate. The below are the details at different settings for 200 fps 8-channel DVR.

Video

Format

Resolution

Farm Rate Totally

(FPS)

Video Quality

Bit Rate

(kbps)

Used Space

(MB/h)

PAL

CIF

Highest

640

281

Higher

512

225

Medium

384

168.7

Lower

256

112.5

Lowest

128

NTSC

CIF

Highest

640

281

Higher

512

225

Medium

384

168.7

Lower

256

112.5

Lowest

128

The calculation format is:

Total Recording capacity =Used space per hour (MB/h) (coverage rate of hard disk)

× recording time (hour) ×channel numbers

For instance, one customer uses NTSC cameras, set resolution to CIF, video quality to Lower, frame rate to 240 fps for

1 2 ... 109 110 111 112 113 114 115 116 117 118 119 120

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Vook DVR Manual de usuario Pagina 114

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