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6.3.2 Encode
Set parameters for video and audio coding. Theleft
column controls theseparate channels’ image quality.
Theright column is asub-stream, amirrored stream
of images to save bandwidth when monitoring from
external computers or mobile phones.
6.3.3 Network
Set network parameters, IP addresses, gateway,
http,etc.
• Channel: Channel setting, 1–8 orall.
• Compression: Theonly video coding format you can
select is H.264 and Extra Stream 1 in sub-stream.
• Resolution: Channel 1 and 2 can use all
accessible resolutions from thelowest QCIF
(176×144) to CIF (352×288), HD1 (704×288)
and thehighest D1 (704×576). Cameras using
thehighest resolution should therefore be
connected to channel 1 and 2. Thesub-stream
resolution for channel 1 and 2 is QCIF (176×144)
and CIF (352×288).
• Frame Rate (FPS): 1–25 frames per second.
• Bit Rate Type: VBR (variable bitrate) or CBR
(constant bitrate). VBR adapts therecording to
maximise hard disk space. CBR is used to set
afixed bit rate which can be adapted to suit
theprevailing conditions, bandwidth and hard disk
space, etc. Settings are made in Bit Rate (kB/s).
• Quality: Settheimage quality if VBR is selected above.
• Bit Rate (kbit/s): SeeBit Rate Typeabove.
• I-Frame Interval:
A high value provides more consistency in
theimage during playback.
A low value requires fewer system resources,
which is preferable for transfers via Extra Stream.
ExtraStream is used when streaming via
anetwork to amobile phone for example.
Too high avalue could result in thesystem
resources being inadequate to display images
inrealtime.
Note: TheI-Frame Interval settings also influence
theDecode settings in Play Mode (Record-
Playback-Search Condition (magnifying glass)).
• Video/Audio: Activate and deactivate Video and
Audio from thesettings above.
• Net Card: Selectanetwork card.
• DHCP Enable: Isactivated from thefactory.
• IP Address: SettheIP address manually when
DHCP is not active. Default: 192.168.1.10.
• Subnet Mask: Setthis manually when DHCP is
not active. Default: 255.255.255.0.
• Gateway: Setthis manually when DHCP is not
active. Default: 192.168.1.1.
• Primary DNS: Ifnecessary, specify theIP number
of theprimary DNS server.
• Secondary DNS: Ifnecessary, specify theIP
number of thesecondary DNS server.
• Media Port: TCP-port. Default: 34567. Inorder
to be able to view images from thesurveillance
system outside your local network, such as on
your mobile phone, you might need to reset
theport controls on your router. MediaPort
enables you to change theport number in
theDVR.
• HTTP-port: Default: 80.
• HS-Download: Prioritises thetransfer rate from
theDVR to theconnected client.
• Transfer Policy: Setting for theprioritisation of
thefile transfer. Adaptive: Adaptsthequality
and speed to suit theprevailing conditions.
QualityPreferred: Prioritises quality.
FluencyPreferred: Prioritises speed.