At^snfi Set Microphone Path Parameters - Siemens TC63 Command Set

TC63 AT Command Set
18.11 AT^SNFI
18.11

AT^SNFI Set microphone path parameters

controls the microphone path amplification. Read and write options of this command refer to the active
AT^SNFI
audio mode. The write command works only in audio modes 2 to 6.
Syntax
Test Command
AT^SNFI=?
Response(s)
^SNFI: (list of supported <inBbcGain>s) , (list of supported <inCalibrate>s)
OK
Read Command
AT^SNFI?
Response(s)
^SNFI: <inBbcGain>,
OK
Write Command
AT^SNFI=<inBbcGain>,
Response(s)
OK
Reference(s)
SIEMENS
Parameter Description
(num)(^SNFW)
<inBbcGain>
ADC gain adjustable in eight 6 dB steps from 0 dB to 42 dB (0=0dB, 7=42dB, 8 steps of 6 dB).
0...7
(num)(^SNFW)
<inCalibrate>
Multiplication factor for input samples. Formula to calculate the negative gain (attenuation) of the input signal:
Gain in dB = 20 * log (inCalibrate / 32768)
0...32767
Notes
• The range of
<inCalibrate>
brate>= 65535 will cause a failure.
• The parameter
<inCalibrate>
• For use after restart, changed values can be stored with AT^SNFW.
• Attention! When you adjust audio parameters avoid exceeding the maximum allowed level. Bear in mind that
exposure to excessive levels of noise can cause physical damage to users!
TC63_ATC_V00.490
Confidential / Draft - Do not copy
<inCalibrate>
<inCalibrate>
is up to 65535 but will be suppressed to 32767. Values above
of is identical with
AT^SNFI
Page 422 of 501
PIN ASC0 ASC1 USB MUX1 MUX2 MUX3 Charge
! % % %
of AT^SNFA.
<atten>
s
% % % !
<inCali-
Last
% !
5/24/05