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Network Camera User’s Guide
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Appendix E: Bandwidth Estimation
The frame rate of video transmitted from the device depends on connection bandwidth
between client and server, video resolution, codec type, and quality setting of server.
Here is a guideline to help you roughly estimate the bandwidth requirements form your
device.
The required bandwidth depends on content of video source. The slow motion video will
produce smaller bit rate generally and fast motion will produce higher bit rate vice versa.
Actual results generated by the device may be varying.
Image Resolution Average range of Data
Sizes for JPEG mode
Average bit rate for MPEG4
mode
160 x 120 (QQVGA) 3 ~ 6k byte per frame 64kbps~256kbps @ 30fps
320 x 240 (QVGA) 8 ~ 20k byte per frame 256kbps~768kbps @ 30fps
640 x 480 (VGA) 20 ~ 50K byte per frame 512kbps~2048kbps @ 30fps
1280 x 1024 or
1024x768
100 ~ 220k byte per frame 512kbps~4096kbps @ 15fps
Note: Audio streaming also takes bandwidth around 32kbps. Some
xDSL/Cable modem upload speeds could not even reach up to 128 kbps.
Thus, you may not be able to receive good quality video while also streaming
audio on a 128 kbps or lower connection. Even though the upload speed is
more than 128kbps, for optimal video performance, disabling audio
streaming will get better video performance.