Ultra-mini SIP PoE IP Camera
ICA-4130S/ICA-4230S
40
Appendix B: Bandwidth and Video Size
Estimation
The frame rate of video transmitted from the Internet Camera 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 for your Internet Camera.
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 and vice versa. Actual
results generated by the Internet Camera may be varying.
Image
Resolution
Average range of
data sizes for JPEG
mode
Average bit rate for
MPEG4 mode
Average bit rate for
H.264 mode
320 x 240
8 ~ 20k byte per
frame
256kbps~768kbps
@ 30fps
192kbps~512kbps
@ 30fps
640 x 480
20 ~ 50K byte per
frame
512kbps~3072kbps @
30fps
384kbps~1536kbps
@ 30fps
1920 x 1080
200 ~ 500k byte per
frame
-
1536kbps~10000kbps
@ 30fps
2048 x 1536
300 ~ 750k byte per
frame
- 2048kbps~12000kbps
@ 30fps
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.
