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G4-504HD2a User Guide
Configuring the G4-504HD2a
Audio
I Frame
Alarm Quality
Encode Mode
For all channels (1 to 5), set the following:
Power Up
▪
Checkbox – if selected, then audio will be
included in the recording. If this is not selected,
then the video will not have any audio,
DEFAULT SETTINGS:
For all channels (1 to 5), set the following:
Checkbox – Selected
▪
This setting is set in the Digital IP camera.
DEFAULT SETTINGS:
For all channels (1 to 5), set the following:
Checkbox – Unselected
▪
Drop list to select the recording video quality
during an alarm event (on a scale of 1 to 8
where 1 is best).
DEFAULT SETTINGS:
For all channels (1 to 5), set the following:
1 (Best)
▪
Drop list to select the encoding mode to use:
CBR (Constant Bit Rate)
▪
VBR (Variable Bit Rate)
▪
The CBR settings instructs the device to encode
the video using a constant bit rate, thus
ensuring consistent quality and predictable file
size of the recorded video. When using VBR, the
device will vary the bit rate according to the
level of detail in the video at each given point
in time, thus attempting to optimise quality
against file size.
However, for critical video (where detail must
not be lost), and which also has a lot of fast
movement, CBR is the better choice, as VBR
would tend to introduce motion artefacts
(jaggedness and blurriness) into the encoded
video as the encoder attempts to keep up with
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