SUPERLOLUX NI525A User Manual page 77

Network video recorder
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For Motion JPEG / MxPEG streaming the following applies (standard and
alarm recording):
1. Use Frame rate and Resolution to determine how many images per second
are saved and the size of the images.
Use the Compression (%) field to change the actual image size (size in KB) and
resolution of image details in percent. The higher the compression percentage, the
smaller the image size. However, the resolution of image details will decrease in
individual frames. We recommend setting the compression to at least 50 % since a
lower image compression ratio could lead to server overload when writing the
images in the MultimediaDatabase.
For MPEG-4 and H.264 streaming the following applies (standard and
alarm recording):
1. Use Frame rate and Resolution to determine how many images per second
are saved and the size of the images.
The I-Frame distance (s) value represents the distance in seconds between two
full screens. Only image changes are transferred between full screens.
2. In the Bandwidth control dialog, use the options Constant bit rate or
Variable bit rate to select whether a constant or a variable bit rate is
requested from the camera.
3. Define the maximum Bandwidth that is to be provided for the camera to
SeeTec server connection.
By default, the image stream is compressed to 4096 kbit/s.
Different settings for Standard recording and Alarm recording during MPEG-4 /
H.264 streaming can result in a several seconds delay when switching from
standard to alarm recording (this is camera-dependent). This may mean that there
is no recording taking place during this period.
4. Change the settings for alarm recording only if you explicitly require a
different resolution or bit rate in case of an alarm and the loss of recorded
time is negligible.
NVR Software - SeeTec Surveillance
75

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