C
C
h
h
a
a
p
p
t
t
e
e
r
r
4
4
–
–
X
X
e
e
a
a
r
r
3
3
D
D
I
I
n
n
t
t
r
r
o
o
d
d
u
u
c
c
t
t
i
i
o
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- 7 -
>
Advanced Setting
Step 01: You can click the checkbox
to mute the microphone.
Normally open.
Step 02: If you feel the mic sound is
too quiet, there are +20dB
boost option. Click the
checkbox of “Boost” to
enable it. It’s nature that
you will also get the
background noise louder
certainly.