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Example 2: MPEG-4 recording

• Video recording from 8 cameras (VB-C60).

• Video size is 320 x 240 and video quality is 3.

• Recording frame rate is 30 fps.

• Data size per second is approximately 150 KB.

Although the actual recording data size depends on the objects recorded by each camera, this calculation assumes the

typical sizes given above.

If MPEG-4 videos from 8 cameras are recorded at 30 frames per second in continuous recording mode, the required hard

disk space is approximately 99 GB per day (= 150 KB x 8 cameras x 60 seconds x 60 minutes x 24 hours =

103,680,000 KB).

Example 3: H.264 recording

• Video recording from 8 cameras (VB-M40).

• Video size is 320 x 240 and video quality is 3.

• Recording frame rate is 30 fps.

• Data size per second is approximately 84 KB.

Although the actual recording data size depends on the objects recorded by each camera, this calculation assumes the

typical sizes given above.

If H.264 videos from 8 cameras are recorded at 30 frames per second in continuous recording mode, the required hard

disk space is approximately 55 GB per day (= 84 KB x 8 cameras x 60 seconds x 60 minutes x 24 hours = 58,060,800 KB).

Note that the actual recording file size may be different from the size in the table, depending on the weather conditions and

the complexity of the scene. For example, video of an empty corridor would typically result in values smaller than the above

values. Conversely, complex scenes, such as a crowded shopping mall, would result in larger values.

 Data Size and Bit Rate Estimates

The following tables shows typical data sizes per frame (in KB) for various combinations of video quality and size settings.

Estimates of the Data Size for VB-S30D/VB-S31D/VB-S800D/VB-S900F/VB-S805D/VB-S905F (JPEG)

(Unit: KB)

* VB-S805D/VB-S905F not supported.

Estimates of the Bit Rate for VB-S30D/VB-S31D/VB-S800D/VB-S900F/VB-S805D/VB-S905F (H.264)

● Video Size: 1080p Category*

(Unit: Mbps)

* VB-S805D/VB-S905F not supported.

Video

Quality

Video Size

1080p Category* 720p Category 4:3 Category

480 × 270 960 × 540 1920 × 1080 320 x 180 640 x 360 1280 x 720 320 x 240 640 x 480 1280 x 960

1 8.21 23.65 73.01 4.48 12.03 36.21 5.16 14.05 43.71

2 11.77 33.82 110.21 6.74 17.16 51.13 7.32 20.14 65.16

3 14.79 44.26 156.53 8.33 21.77 68.28 9.16 26.29 92.37

4 19.33 62.53 236.60 10.68 29.17 99.36 12.01 36.85 139.33

5 34.24 121.71 470.58 17.69 54.09 203.91 20.83 71.81 287.77

Video

Quality

I-Frame Interval: 1 sec.

Frame Rate: 10 fps Frame Rate: 15 fps Frame Rate: 30 fps

480 × 270 960 × 540 1920 × 1080 480 × 270 960 × 540 1920 × 1080 480 × 270 960 × 540 1920 × 1080

1 0.25 0.75 2.19 0.32 0.96 3.17 0.49 1.51 5.28

2 0.35 0.97 2.89 0.39 1.18 4.10 0.65 1.83 6.84

3 0.57 1.61 4.97 0.65 1.97 6.99 1.01 3.38 12.42

4 0.66 1.94 6.12 0.89 2.70 8.95 1.42 4.25 15.69

5 0.96 2.76 8.90 1.25 3.58 12.98 1.85 6.01 23.13

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 139 140

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