MediaPort 200 with Exter
nal DSP with AEC
DSP Routing for Application 2
Mic Inputs 1 – 8
•
Microphone inputs are routed to the Virtual Send A, using the “Include Automixing”
routing option.
•
From Virtual Return A, the Mic Mix is routed to Output 3. DMP 128 Output 3 is
connected to the MediaPort 200 Mic/Line Input.
•
In the DMP 128 AEC processing dialog, “AEC Ref (Virtual Return #H)” is assigned as
the AEC reference for mic inputs 1 – 8.
•
Virtual Return A is also routed to Output 4, connected to the video codec.
Program L/R Inputs 9 and 10
Program content comes from the MediaPort 200 Line Output L/R, which is a mix of the
USB Playback, HDMI, and Line Input signals.
•
MediaPort 200 Line Output L/R is connected to the DMP 128 Inputs 9 and 10 “MP
Program L/R.”
•
DMP 128 Inputs 9 and 10 are routed to Output 4, summed to mono. Output 4 is
connected to the video codec.
The mix-points that connect Inputs 9 and 10 to Output 4 are set to -12 dB. This is to
compensate for summing, which can add up to 6 dB of gain, and also to set a mix level
for program audio to the video codec far end. This gain setting can be adjusted further
during a test call to the video codec.
•
DMP 128 Inputs 9 and 10 are routed to Virtual Sends B and C.
•
From Virtual Returns B and C, program audio is routed to Outputs 1 and 2, and then
connected to a stereo sound reinforcement system in the room. Virtual Returns B and
C are also routed to Virtual Send H for the AEC reference.
USB Communications Input 11
“Far end” audio from a soft codec conference is received at the MediaPort USB
Communications input and is sent to the MediaPort 200 Ref Out.
•
MediaPort Ref Out is connected to DMP 128 Input 11 “MP Far End.”
•
DMP 128 Input 11 is routed to Output 4. Output 4 is connected to the video codec.
•
DMP 128 Input 11 is routed to Virtual Send D.
•
From Virtual Return D, USB Communications is routed to Outputs 1 and 2, and then
connected to the sound reinforcement system in the room. Virtual Return D is also
routed to Virtual Send H for the AEC reference.
MediaPort 200 • with External DSP with AEC Application Setup
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