epiphan video Pearl Nano, User Manual

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Pearl Nano User Guide Configure video encoding
Setting Description
to your video quality. A good rule of thumb is to keep the interval
between 2 to 3 seconds and decrease the key frame interval as the
motion increases. Try different settings and note changes in the video
quality. If your video quality is poor and jittery you may need to
decrease the interval between key frames. If you have unlimited
bandwidth and system resources you can choose an option to stream
key frames only.
Frame rate
Frame rate reflects the number of images that are encoded per second.
Reducing the frame rate for a channel reduces bandwidth usage, and
vice versa.
The system's ability to maintain a set frame rate is based on several
factors, for example:
l
overall system load affects the ability for the device to process
pixels;
l
available network bandwidth;
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the source and stream frame size (resolution);
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the type of motion that is captured; and
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number of users accessing the stream.
When adjusting the frame rate, you may need to try different values to
achieve the best outcome.
Bitrate
In general, higher bitrates mean higher image quality, but more
bandwidth is needed for streaming and video recordings are larger. If
you're using H.264, then you can set the bitrate to improve the image
quality.
For example, an HD Blu-ray video is typically in the range of 20 Mbps,
whereas a standard-definition DVD is usually 6 Mbps.
If you're unsure what bitrate value to use, start at 5000 kbps (slightly
less than a typical DVD) and test to see how this looks for your viewers.
Configure video encoding for a channel using the Admin panel
1. Login to the Admin panel as admin , see Connect to Admin panel .
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