ATEIS ECS - Manual (Page 33)

ECS MANUAL
Version EN.1
33
AEC WITH CODEC SERVER AND LOCAL AMPLIFICATION
Schematic:
With the AEC, the local reflexions are removed on the signal sent to the codec server.
If the client wants to hear its own microphone signal by using a loudspeaker (and of course an
amplifier), then in order to avoid the local echo reflexion on the local loudspeaker, it is needed to use
also the local echo suppressor component (please see
Local Echo Suppressor chapter for detail about
this component).
Design in the ECS:
Regarding the schematic of a system using a codec server and a local amplification, here is the
corresponding design which must be created with Ateïs Studio software.
The AEC component provides four independent channels. As we need one channel for each
microphones signal (if there are several local microphones) and one for the far-end signal, the using
of one AEC component is enough.