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are all full, DVR will handle it as “Hard Disk Full” exception, please refer to chapter 5.17 for exception menu.
5.4.1
Recording parameters description
Stream Type:
There are two options, one is “Audio & Video” stream and other is “Video” stream only. If you want to record video and audio, please select
“Audio&Video” option, otherwise you can select “Video” option to record only video.
Resolution:
The higher resolution is, the clearer the image is. The resolution options from low to high are: QCIF (Full frame), CIF (Full frame), 2CIF (15fps), DCIF
(12fps), 4CIF (6fps).
Bit Rate Type:
There are two options: “Variable” and “Fixed” .The main features of “Variable” bit rate is it can maintain the image quality under the max bit
rate. In this case, DVR can save HDD usage and network bandwidth. If you select fixed bit rate, DVR will use the fixed bit rate to compress image.
Max Bit Rate:
The max bit rate selection has relations with resolution. If you select high resolution, you must select high bit rate. For CIF resolution, the typical
max bit rate is
384K-768Kbps.It is better to select the proper max bit rate based on the camera, background and image quality requirement.
Image Quality:
If you select variable bit rate type, you can define image quality. There are 6 options: Highest, Higher, High, Average, Low and Lowest. High
image quality needs high bit rate size.
Frame Rate:
Frame per second. For low frame rate, you can select low bit rate size.
5.4.2
Pre-Record Time and Post-Record Time
Pre-Record Time:
When you enable motion detection recording or external alarm recording, you can define prerecord time. MaxPreRecord is to save all data in Pre
Record buffer. The Pre-Record time is related with bit rate. The lower bit rate, the longer Pre-Record time is. The actual time maybe have deviation.
Post Record Time:
This is the DVR continue recording time, when external alarm or motion alarm is stopped. The time can be setup according to the requirement.
5.4.3
Record Schedule Setup
In recording menu, enable record function (“
“flag), press “Schedule” button to enter into recording schedule menu (Fig.5.19)
Day:
The recording is settled by day. If everyday has the same schedule, you can copy one day schedule to the other days.
User Manual of DMB-04R Embedded Mobile DVR (V1.0)
