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MC55 AT Command Set
16.9 AT^SNFA
Parameter Description
(num)(^SNFW)
<atten>
Multiplication factor for input samples. Parameter
Formula used to calculate microphone attenuation (negative gain):
Gain in dB = 20 * log(
<atten>
(P)
0...32767
...65535
0
32767
Notes
•
The command is provided for compatibility with M20 and is a subset of
of
brate>
AT^SNFI
•
To make the changes persistent use
Example
^SYSSTART
at^snfa=?
^SNFA: (0-65535)
OK
at^snfa?
^SNFA: 32767
OK
at^snfs=4
OK
at^snfa=1
OK
at^snfa?
^SNFA: 1
OK
at^snfi?
^SNFI: 5,1
OK
at^snfi=5,45
OK
at^snfa?
^SNFA: 45
OK
MC55_ATC_V01.05
Confidential / Released
/32768)
Microphone is muted
No attenuation on the microphone path
is identical with
<atten>
AT^SNFW
Page 404 of 469
is identical with
<atten>
AT^SNFI
of
.
AT^SNFA
.
s
m
of
<inCalibrate>
AT^SNFI
. The parameter
<inCali-
obile
.
2/10/04
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