Using The Mix Tab; Set Room Volume; Set Mix To Far End - Extron electronics MediaPort 200 User Manual

Using the Mix Tab

Navigate to the Mix tab in PCS. Once the MediaPort 200 inputs are set up for optimal
levels, and the outputs are set according to the signal level needed at the receiving devices
(such as amplifiers, DSP processor, and video codecs), MediaPort 200 mix and listening
levels may be controlled from the Mix tab.
Figure 5.

Set Room Volume

Set the Room Volume master (
This is a safe level to start playback. One by one, play your program sources. Switch
between them and set the individual levels of the line input sources with the faders in the
Program Mix section
level. Next, adjust the Room Volume master fader to a comfortable listening level for the
room. A final setting of −10 for the Program master leaves a bit of "headroom" if room
volume needs to be increased (this will depend very much on the size of the amplifier in the
room and its input sensitivity setting).
The USB Communications fader has an additional setting, AEC Ref Only, which
will mute the USB communications or "far end" audio to the line output, while continuing
to route this audio to the AEC Ref output. When using a DSP processor for microphones
and AEC, the AEC Ref Only option should be selected. Doing so isolates the USB far
end audio from the program audio, so that they can be handled independently in the DSP
processor.

Set Mix to Far End

Adjustments to the Mix to Far End section of the Mix tab are made during a soft codec
conference. The Mic and Program faders create the mix of program and mic audio that is
sent to the far end over the USB output. They can be used if the conference participants at
the far end comment that one is louder than the other, for instance. Adjust the Mic master
(
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of mic and program material, providing clear, undistorted audio. Set this mix level while the
talkers at the near end and far end are speaking at a normal levels for conferencing, and
when program material is being played at the far end.
PCS Mix Tab
so that each program source plays back at about the same
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) and Program master (
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MediaPort 200 Audio Application Tutorial • Audio Application Setup
) in the Near End section of the Mix tab to −20dB.
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) in the Mix to Far End section to achieve a proper blend
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