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Part Name
Description
MSM7620 View Datasheet(PDF) - Oki Electric Industry
Part Name
Description
MFG CO.
MSM7620
Echo Canceler
Oki Electric Industry
MSM7620 Datasheet PDF : 28 Pages
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¡ Semiconductor
MSM7620
Example 4: Canceling of both acoustic echo and line echo
(to handle both acoustic echo from line input and line echo from microphone input)
Acoustic echo
CODEC
ROUT
m
-law
SIN
MSM7620
AFF
+
–
+
MSM7620
RIN SOUT
+
–+
SOUT RIN
AFF
CODEC
SIN
m
-law
ROUT
Microphone input
For acoustic echo
For line echo
Line input
H
Line echo
18/28
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