Extron electronics MediaPort 200 User Manual page 23

AEC Ref and Aux Outputs
These two outputs provide special routing capabilities that make it easy to use the
MediaPort 200 with an external DSP with AEC and/or a hardware video conferencing device
(video codec). The Ref output carries the only far end USB communications audio, while the
Aux output carries only the audio signal from the MediaPort Mic/Line input.
Figure 10 below highlights the routing to these two outputs. There are no master controls
for these signal paths. Level is set on the input gain controls and the output attenuation
controls.
Set the input gain for optimal signal levels in the
page 51). Settings for Ref and Aux outputs attenuation controls may remain at 0 dB for
unity gain in most cases. Adjust the output controls if the device connected to these outputs
requires a lower signal level, though it is recommended to adjust the input level of the
connected device in this case.
USB PLAYBACK L
GAIN
USB PLAYBACK R
GAIN
HDMI IN L
GAIN
HDMI IN R
GAIN
LINE IN L
GAIN
LINE IN R
GAIN
USB COMMUNICATIONS L
GAIN
USB COMMUNICATIONS R
GAIN
MIC/LINE IN
GAIN
Figure 10.
FLT COMP GAIN
FLT COMP GAIN
FLT COMP GAIN
FLT COMP GAIN
FLT COMP GAIN
FLT COMP GAIN
FLT COMP DUCKER GAIN
FLT COMP DUCKER GAIN
FLT COMP DUCKER GAIN
AEC Ref and Aux Out Routing (Example)
tab in PCS (see Input Tab
Input
SIG
FLT LIM
GEN
SIG
FLT LIM
GEN
SIG
FLT LIM
GEN
SIG
FLT LIM
GEN
SIG
GEN
SIG
GEN
MediaPort 200 • Theory of Operation
on
USB OUT L
ATT
USB OUT R
ATT
LINE OUT L
ATT
LINE OUT R
ATT
REF OUT
ATT
AUX OUT
ATT
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