Extron electronics mediaport 200 User Manual page 101

Program Mix panel — Contains the following controls (fader, text box with arrow
A
buttons, and button):
Mute
• USB Playback
• HDMI
(analog line input)
• Line In
These line inputs typically carry program material. In addition to the gain adjustments on
the screen that set input gain, the controls in the
Input
input gain. The program mix that is set in this panel is sent to the Line and USB outputs.
Setting the program mix levels at the post-input gain point sends the same mix to both
outputs.
The mix of line input sources made in the program mix panel is also sent to the far
end panel, with the exception that the level-to-far-end program mix does not include
far end communications audio from the computer. The room volume master and the
mix-to-far-end master faders are independent of each other. Adjusting the room volume
does not affect the level sent to the far end, but adjusting the individual program faders
affects the mix going to both the room and the far end.
From Far End panel — Contains the
B
The USB Communications input receives the far end audio signal from the soft codec
conference. This audio is then sent to the MediaPort analog line output, so that it can
be heard in the near end room through the sound reinforcement system. The USB
communications audio is mixed with the program audio and sent to the line output by
default.
Within the
From Far End
(shown at right), which contains the following two radio buttons
that determine the routing of the USB communications audio:
• Line Out + AEC Ref
for applications 1 and 3, in which the MediaPort is in
standalone mode without an additional DSP processor. When this button is
selected, USB communications audio is routed to the line output and is controlled
by the
Room Volume
— This setting is intended for applications 2 and 4, in which a DSP
• AEC Ref Only
processor is in use. When selected, USB communications audio is muted to the line
output and sent to the REF output only. This setting allows USB communications
audio and program audio to be routed separately to the DSP processor, with USB
communications audio being sent only to the REF output and program audio sent
only to the line output.
Near End panel — Contains the
C
output, and for the program mix and USB communications audio in the near end room.
When the USB communications audio is sent to the REF output only, the application
is using a DSP processor in conjunction with the MediaPort 200. In this case,
volume control is performed in the DSP processor. For this type of application, it is
recommended the
Room Volume
essentially leaves both the Program Mix and USB Communications levels unaffected by
the Room Volume setting.
NOTE: The
Room Volume
of each other. Adjusting the
end, but adjusting the individual program controls does affect the mix going to
both the room and the far end.
USB Communications
panel there is also a
Send to
— This is the default setting, intended
master control in the
Near End
controls for audio sent to the line
Room Volume
controls be set to
0 dB
and the
Mix to Far End
does not affect the level sent to the far
Room Volume
MediaPort 200 • Audio Application Setup
panel adjust post-
Program Mix
controls.
panel
panel.
, or unity gain. This setting
master controls are independent
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