Extron electronics mediaport 200, Руководство пользователя

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Standalone MediaPort 200
1
Program Mix Panel — Contains the following controls (fader, text box with arrow
buttons, and
Mute
button):
• USB Playback
• HDMI
• Line In
(analog line input)
These line inputs typically carry program material. In addition to the gain adjustments
on the
Input
screen that set input gain, the controls in the
Program Mix
panel adjust
post-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.
2
From Far End Panel — Contains the
USB Communications
controls.
The USB Communications input receives the far end audio signal from the soft codec
conference via the USB connection. This audio is then sent to the MediaPort analog
line output, so that it can be heard in the near end room through a sound reinforcement
system.
3
Near End Panel — Contains the
Room Volume
controls for audio sent to the line
output, and for the program mix and USB communications audio in the near end room.
At the bottom of the
Near End
panel, there is a
Mix USB Communications
checkbox.
When the box is checked (default) the USB communications audio from the far end is
routed to the AEC Ref output and the analog Line output. When the box is unchecked,
USB communications audio is only routed to the AEC Ref output.
NOTE:
The
Room Volume
and the
Mix to Far End
master controls are independent of
each other. Adjusting the
Room Volume
does not affect the level sent to the far end,
but adjusting the individual program controls does affect the mix going to both the
room and the far end.
4
Mix to Far End Panel — Contains controls for mic and program levels, which create
the mix that goes to the far end.
Set these levels
during a soft conference call, utilizing verbal feedback from individuals
located at the far end. The signal level of this audio mix can be viewed using the meters
at the bottom of the
USB
panel on the
Output
screen (on the PCS main window, click
the
Audio Config
button, then the
Output
tab.
If the input gain is set up properly, setting levels higher than 0 dB is generally not
necessary. Program audio can be set to the same level as mic audio, or slightly lower.
If program audio is played at the same time that someone is talking, use ducking to
lower the program audio level during speech (see
Ducking
on page 55). The ducking
processor returns the program audio to its original level when talking stops.
At the bottom of the
Mix to Far End
panel is the
Mix USB Playback
checkbox.
When this box is checked (default) the USB playback audio is mixed to the USB output
and is sent to the far end. When the box is unchecked, USB playback audio is not sent
to the far end via the USB output.
NOTE: If using a Web-based soft codec, it may be necessary to uncheck the
Mix
USB Playback
box, essentially muting USB playback audio to the far end. This
prevents a feedback loop if USB playback audio is sent to the far end.
MediaPort 200 • Standalone Application Setup 90