G4-304SD1a
User Manual & Install Guide
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selected, then the video will not have any
audio,
DEFAULT SETTINGS:
For all channels (1 to 5), set the following:
Checkbox – Selected
Alarm Quality
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)
Encode Mode
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 artifacts
(jaggedness and blurriness) into the encoded
video as the encoder attempts to keep up with
the quick changing video scenes by
continuously adjusting the bit rate.
For optimal recorded video quality,
Gatekeeper Systems recommends the use of
the CBR setting throughout.
DEFAULT SETTINGS:
For all channels (1 to 5), set the following:
CBR
