
TC63 AT Command Set
18.13 AT^SNFO
s
TC63_ATC_V00.490
Page 425 of 501
5/24/05
Confidential / Draft - Do not copy
18.13
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
<outStep>
:
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
<outBbcGain>
s), (list of supported
<outCalibrate>
s), (list of supported
<outStep>
s), (list of supported
<sideTone>
s)
OK
Read Command
AT^SNFO?
Response(s)
^SNFO:
<outBbcGain>
,
<outCalibrate>
[0] ,
<outCalibrate>
[1] ,
<outCalibrate>
[2] ,
<outCalibrate>
[3] ,
<outCalibrate>
[4] ,
<outStep>
,
<sideTone>
OK
Write Command
AT^SNFO=
<outBbcGain>
,
<outCalibrate>
[0] ,
<outCalibrate>
[1] ,
<outCalibrate>
[2] ,
<outCalibrate>
[3] ,
<outCalibrate>
[4] ,
<outStep>
,
<sideTone>
Response(s)
OK
Reference(s)
PIN
ASC0 ASC1 USB MUX1 MUX2 MUX3 Charge
4
Last
SIEMENS
!
%
%
%
%
%
%
!
%
!
<outBbcGain>
(num)(^SNFW)
<outCalibrate>
(num)(^SNFW)
<outStep>
(num)
<sideTone>
(num)(^SNFW)