INSTALLATION
© Polycom, Inc. 13 VORTEX EF2211/EF2210 Reference Manual
3. OR adjust the placement of the microphone relative to the loudspeaker.
Configure
Program Audio
Sources
Set the gain on the matrix mixer input from the program audio source so that program
audio is played into the room at a level similar to that of speech from the remote site.
This should also ensure that the program audio level is good when sent to the remote
site.
Figure 6. Room Gain Meter on the Diagnostics page of the Conference Composer
control software.
Room Gain Meter
Read Room Gain
from here