Operation Manual

WWW.FOSCAM.COM FI9820W User Manual
Bit rate: Generally speaking, the larger the bit rate is, the clearer video will become. But the bit
rate configuration should combine well with the network bandwidth. When the bandwidth is very
narrow, and bit rate is large, that will lead to video can not play well.
Maximum frame rate: Note that a larger frame size takes up more bandwidth. When the video
format is 50Hz, the maximum frame rate is 25 fps. When the video format is 60Hz, the maximum
frame rate is 30 fps. You should lower frame rate when the bandwidth is limited. Normally, when
the frame rate above 15, you can achieve fluently video.
Key Frame Interval: The time between last key frame and next key frame.
Bit rate control: It has two models: CBR and VBR. If you choose CVR, video encoder will be
coding on the basis of bit rate you set. If you choose VBR, video encoder will be coding not only
on the basis of bit rate, but also consider video quality.
Parenthesis options: Select this option to add name and time to the live view stream. If you set
as following picture (Figure 3.24), you will see the video as Figure3.25. The video name cannot
be Chinese characters.
Figure 3.24
Shenzhen Foscam Intelligent Technology Co., Limited
Tel: [phone] Fax: [phone]
38
Figure 3.25