D14554.01—OCTOBER 2009
48
Profile 42” with Codec C20
Administrator Guide
Contents
Introduction
Getting started
About the menus
The settings menu
Settings Library
Cameras
Appendices
Contact us
Video system
Guidelines when using two microphones
The Profile 42” with Codec C20 is shipped with one microphone.
Optional, you can connect two microphones.
Normally a single microphone should suffice to serve all the
participants. However, if this is not the case you will need to use two
microphones. You must then make sure they are spaced sufficiently
apart to avoid that the sound of the first microphone suffers from
interference from the second microphone.
How to place the two microphones
•
As a rule of thumb: The second microphone (
MIC 2
) should be
placed three times (distance
3X
) or longer away from a participant
compared to the microphone (
MIC 1
) closest (distance
X
) to that
participant. This is the case for all participants.
•
If you cannot fulfill the requirement you probably will not need the
second microphone in the first place. Instead inspect the site to
ensure that all participants have eye contact with the microphone
when using the system.
MIC 1
MIC 2
X
3X
Participant