Siemens Brodersen MC55 AT - Manual (Page 415)

MC55_ATC_V04.00 Page 415 of 475 3/17/06
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17.13 AT^SNFO Set audio output (= loudspeaker path) parameter
AT^SNFO
controls the earpiece path amplification. The read and write commands refer to the active audio mode.
The write command works only in audio modes 2 to 6.
Syntax
Parameter Description
Negative DAC gain (attenuation) adjustable in four 6 dB steps from 0 dB to -18 dB (0=0 dB, 3=-18 dB)
0...3
Formula to calculate the value of the 5 volume steps selectable with parameter :
Attenuation = 20 * log (2 * outCalibrate[n] / 32768)
0...32767
Volume steps 0 - 4, each defined with outCalibrate[n]
0...[4]
Multiplication factor for the sidetone gain.
Formula to calculate how much of the original microphone signal is added to the earpiece signal:
Sidetone gain in dB = 20 * log (sideTone / 32768).
0...32767
Test Command
AT^SNFO=?
Response(s)
^SNFO:
(list of supported s), (list of supported s), (list of supported
s), (list of supported s)
OK
Read Command
AT^SNFO?
Response(s)
^SNFO:
, [0] , [1] , [2] ,
[3] , [4] , ,
OK
Write Command
AT^SNFO=
, [0] , [1] , [2] ,
[3] , [4] , ,
Response(s)
OK
Reference(s) PIN ASC0 ASC1 MUX1 MUX2 MUX3 Charge Last
SIEMENS ! % % % % % ! ! !
(num)(^SNFW)
(num)(^SNFW)
(num)
(num)(^SNFW)