MY4-AEC Owner’s Manual 7
MY4-AEC Signal Flow

The local and remote locations in a teleconferencing system are referred to as the “near end”

and “far end”, respectively. The MY4-AEC acoustic echo canceller (AEC) works by comparing

the reference signal received from the far-end with the signal from the microphone in order to

determine which components of the signal are echo, and then subtracts only the far-end echo

component from microphone signal. The near-end sound is thus clearly transmitted to the far

end without echo.

Reference signal FBS: Feedback suppressor NR: Noise reduction

From Far-end A Far-end Voice A
NR
From Far-end B Far-end Voice B
NR
From Far-end C Far-end Voice C
NR
From Far-end D Far-end Voice D
NR
To Far-end 4
Near-end Mic. 4
Near-end Voice 4
NR
FBS
To Far-end 3
Near-end Mic. 3
Near-end Voice 3
NR
FBS
To Far-end 2
Near-end Mic. 2
Near-end Voice 2
NR
FBS
To Far-end 1
Near-end Mic. 1
Near-end Voice 1
NR
FBS
AEC
AEC
AEC
AEC
Matrix Router