User Manual

MY4-AEC 使用说明书 139
MY4-AEC 信号流
远程电视会议系统的本地和远程地点分别称为 “近端”和 “远端”。
MY4-AEC 回声消除器 (AEC) 的工作原理为：回声消除器将接收自远端的参考
信号与麦克风的信号进行比较，以确定信号中的哪些部分为回声，然后从麦克
风信号中只去除远端回声部分。然后将无回声的近端声音清晰地传送到远端。
参考信号 FBS：反馈声抑制器 NR：降噪
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
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