Gatekeeper Y58 User Manual & Installation Manual page 96

Y58 User Manual & Install Guide
Audio
Alarm Quality
Encode Mode
DEFAULT SETTINGS:
For all channels, 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, set the following:
Checkbox – Selected
Drop-down 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, set the following:
1 (Best)
Drop-down list to select the encoding mode to
use:
CBR (Constant Bit Rate)
VBR (Variable Bit Rate)
The CBR settings instruct 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 optimize 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
continuously adjusting the bit rate.
For optimal recorded video quality, Gatekeeper
Systems recommends the use of the CBR
setting throughout.
DEFAULT SETTINGS:
video scenes by
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