LiveU LU60, User Manual

Page: 52 / 146

LiveU Live Video Uplink System User Guide
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This Profile is more resilient to changes (errors) and adapts quickly to
bandwidth changes. It is designed not to freeze. However, the quality may
drop if networks conditions worsen abruptly.
IMPORTANT
The Interview Profile includes an automatic mechanism that
activates when the network conditions worsen significantly.
This mechanism reduces the Frames Per Second (FPS) to allow
a clean image with sufficient quality rather than pixelization.
When this happen, the image may look jumpy. Once networks
conditions improve, then the FPS will be automatically
increased as well.
Interview Profile Delay
Interview profile allows for the shortest delay, 1.35 – 5 seconds. The delay in
this Profile is automatically set by the system after calibration and depends on
the selected resolution. The Recommended delay checkbox is automatically
selected to indicate that this Profile is using the automatically delay set by the
system after calibration.
You can manually set the delay and override the system’s automatic
recommendation by checking the Custom delay checkbox. The system then
displays the upper and lower permitted delay limits according to the
performance of the Interfaces measured in the Calibration process during the
Connect phase. You can then type in or use the slider to specify the desired
delay. Please note that reducing the delay below the system’s recommended
one may result in less video resiliency and/or image quality.
NOTE
Generally, as a rule of thumb, the longer the delay, the better the
system reacts to temporary air bandwidth deterioration.
NOTE
In Guaranteed Only mode, the minimum Custom Delay is 1.4
seconds. In Use All mode, the minimum Custom Delay is 1.6
seconds. For more details, see page 76.