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3 General Use
45
3.11.5 Duo VideoTF/H.239
(Optional feature)
With Duo Video you have the opportunity to show two different live video streams
simultaneously, main video and Duo Video. This is handy when showing a presentation. You
see the live presentation and the live video of the presenter simultaneously. When you start a
presentation, Duo Video starts automatically if both local and remote system supports Duo
Video. If one of the systems does not support Duo Video, no Duo Video will be established
and your presentation will be showed on your main video.
Example:
Start a meeting with main camera as video source. Press the presentation key on the
remote control to start a PC presentation.
PC will appear as Duo Video in addition to main camera. End the Duo Video presentation
by pressing presentation key again.
In Presentation Settings (see chapter 4.3 Presentation Settings), you can put Duo Video to
Manual. That means that Duo Video will not start automatically.
Example:
Start a meeting with main camera as video source. Press the presentation key on the
remote control to start a PC presentation.
A dialog box appears where you can choose to show PC as Duo Video or not. This is
handy if you not always want to use Duo Video.
Duo Video and Bandwidth
Using Duo Video, the quality will automatically downspeed to the optimal bandwidth. This
means that you need higher quality to allocate enough bandwidth for the two video streams.
Duo Video borrows bandwidth from main video. When Duo Video is closed, the bandwidth is
returned to the main video.
Controlling camera, changing video source and camera presets in a Duo Video call.
When selecting the Document Camera or PC, the system will automatically request floor
when connected to a MCU conference as MultiSite host or connected to an external MCU.
The main monitor will display incoming video and the 2nd monitor will display outgoing video
with Duo Video in full. Outgoing main video will be displayed in PIP on main monitor. For a
single monitor system, the Duo Video will be shown in full screen and the incoming video in
PIP. Most Duo Video sources are not possible to control with move camera and presets.
Move camera and presets will therefore work on the main camera also when you have Duo
Video, with one exception. If you use a second camera (aux) as Duo Video, move camera
and presets will work on Duo Video. If you want to control the main camera, press Move
Camera from the main menu and choose Near End Camera.