Appendix e: bandwidth estimation, Appendix f: specifications – AirLive FE-200DM User Manual

Page 57

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5. Appendix




AirLive FE-200DM Manual

51

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

Average bit rate for
H.264 mode

160 x 120
(QQVGA)

3 ~ 6k byte per
frame

64kbps~256kbps
@ 30fps

32kbps~192kbps
@ 30fps

320 x 240
(QVGA)

8 ~ 20k byte per
frame

256kbps~768kbps
@ 30fps

192kbps~512kbps
@ 30fps

640 x 480
(VGA)

20 ~ 50K byte per
frame

512kbps~2048kbps
@ 30fps

384kbps~1536kbps
@ 30fps

1280x1024
(SXGA)

100 ~ 200k byte
per frame

NA 512kbps~3076kbps

@ 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.

Appendix F: Specifications

Camera

Model Name

FE-200DM

Image Device

2 Mega-pixel image sensor

Effective Pixels

1600 x 1200 pixels

Lens

Fish-Eye Lens
Focal Length: F2.0 /f = 1.25mm
FOV=185°(D/H/V)

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