ACTi MNR-310 - Manual (Page 133)

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MNR-310 System Administrator ’s Manual
133
Tips to Enhance Live View Performance
Live view for multiple channels requires sufficient computing power to run the performance.
In certain extreme cases, like when viewing several megapixel H.264 video streams at the
same time, the client computer will be overloaded and hence affect browser’s performance.
This is a common limitation imposed upon all Windows based video management programs
and web browser.
To enhance live view performance, below are several tips you may try.
1 . Use dual stream mode for those devices supporting this function. Enable the dual stream
mode and use the stream of lower resolution/frame rate/bit rate for live view, and
megapixel resolution stream for recording.
2. Use another browser client to share these high-resolution channels. Given that there are
32 megapixel channels to be monitored, and you may have Layout 1 to display channel 1
to 16, Layout 2 to display channel 17 to 32. You can open one browser client to show
Layout 1 and the second browser on an extended monitor to show Layout 2.
3 . Have NVR automatically decode only I frame for live view stream when system loading is
high. Go to Setup page  System tab  Settings  Display Performance Settings for
the settings. You may choose to enable the Decode I frame function under either or both
of the conditions that the current layout is displaying channels above certain number, or
the CPU usage is above certain percentage. When either of these two situations happens,
the frame rate of all live streams will be declined. This setting will be applied to the live
display of all connected clients except for the client on MNR-310.