17
User Manual
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CONFIGURATION /
STREAM
1. Setup Video and Audio Parameters
Procedure
Setting
Parameter
DESCRIPTION
Table 4-1 Stream configuration parameters
Frame Rate (fps)
Resolution
Select a value from the drop-down
Select a value from the drop-down
list box.
list box.
[Setting method]
[Setting method]
The frame rate is used to measure displayed frames.
A higher frame rate means smoother videos. A video
whose frame rate is higher than 22.5 f/s is considered
as smooth by human eyes.
A higher resolution means better image quality
NOTE
IP cameras support the different resolutions
based on the model.
I Frame Interval (f)
Bit Rate Type
Select a value from the drop-down
Select a value from the drop-down
list box.
list box.
[Setting method]
[Setting method]
[Setting method]
Select a value from the drop-down
list box.
•
50 Hz: 1–25 f/s
•
60 Hz: 1–30 f/s
Frame rates for different frequencies are as follows:
I frames do not require other frames to decode.
A smaller I frame interval means better video quality
but higher bandwidth.
NOTE
The compression speed is fast; however, improper
The frequency is set on the
Device Configuration
bit rate may cause vague motion images.
The bit rate changes according to the image
complexity. The encoding efficiency is high and the
definition of motion images can be ensured.
>
Camera
page. The biggest MJPEG coding format
frame rate is 12 frames per second.
The bit rate is the number of bits transmitted per unit
of time. The following bit rate types are supported:
•
Constant bit rate (CBR)
•
Variable bit rate (VBR)