Atten, Obile – Siemens MC55 User Manual
Page 404
Advertising
MC55 AT Command Set
16.9 AT^SNFA
s
m
obile
MC55_ATC_V01.05
Page 404 of 469
2/10/04
Confidential / Released
Parameter Description
Multiplication factor for input samples. Parameter
is identical with
Formula used to calculate microphone attenuation (negative gain):
Gain in dB = 20 * log(
/32768)
0...32767
(P)
...65535
0
Microphone is muted
32767
No attenuation on the microphone path
Notes
• The command is provided for compatibility with M20 and is a subset of
is identical with
• To make the changes persistent use
Example
<atten>
(num)(^SNFW)
^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
Advertising