The me you set to record before the scheduled me or event. For example, when an alarm
triggers the recording at 10:00, and if you set the pre-record me as 5 seconds, the camera
records at 9:59:55.
Post-Record
The me you set to record aer the event or the scheduled me. For example, when an
alarm triggered recording ends at 11:00, and if you set the post-record me as 5 seconds, it
records
ll 11:00:05.
Stream Type
Main stream and sub-stream are selectable for recording. When you select sub-stream, you
can record for a longer
me with the same storage space.
Video/Picture Expiry Time
The expiry me is period for a recorded le to be kept in the HDD. When the deadline is
reached, the le will be deleted. If you set the expiry me to 0, the le will not be deleted.
The actual keeping me for the le should be determined by the capacity of the HDD.
6.
Click OK to save the advanced
sengs.
7.
Click Apply.
6.8.2
Congure Recording Parameter
Steps
1.
Go to
Conguraon → Record → Parameter to congure camera main stream and sub-stream
parameters.
2.
Congure recording parameters.
Main Stream
Main stream refers to the primary stream that aects data recorded to the hard disk drive
and will directly determine your video quality and image size. Comparing with the sub-
stream, the main stream provides a higher quality video with higher
resoluon and frame
rate.
●
Main Stream
(Connuous) refers to the main stream of normal recording.
●
Main Stream (Event) refers to the main stream of event recording.
Sub-Stream
Sub-stream is a second codec that runs alongside the mainstream. It allows you to reduce the
outgoing internet bandwidth without
sacricing your direct recording quality. Sub-stream is
oen exclusively used by smartphone applicaons to view live video. Users with limited
internet speeds may
benet most from this seng.
Stream Type
You can choose to include video and audio or only video in the recording.
Resoluon
Network Video Recorder User Manual
81
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