Siemens AT Command Set Cellular Engines Wireless Modules MC35 ユーザーズマニュアル

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AT Command Set
MC35_ATC_01_V04.00
Page 198 of 238
02.04.2002
8.24  AT^SNFO  Set audio output (= loudspeaker path) parameter
Test command
AT^SNFO=?
Response
^SNFO: (list of supported <outBbc Gain>), (list of supported <outCali-
brate[0...4] >
), (list of supported <outStep>), (list of supported <sideTone>s)
OK
Parameter
See write command
Read command
AT^SNFO?
Response
^SNFO: <outBbcGain>, <outCalibrate[0]>,...<outCalibrate[4]>, <outStep>,
<sideTone>
OK
Parameter
See write command
Write command
AT^SNFO=<out-
BbcGain>,<outCali-
brate[0]>,...<outCali
brate[4]>,<out-
Step>,<sideTone>
Set TA's loudspeaker path parameters.
Response
<outBbcGain> <outCalibrate[0]>...<outCalibrate[4]<(outStep)> <sideTone>
OK
Parameters
<outBbcGain>
Setting for DAC gain amplifier attenuation 0 – 3 (0=0 dB,
3=-18 dB, 4 steps of 6 dB)
<outCalibrate[0]> ... <outCalibrate[4]>
Multiplication factor 0 – 32767 for output samples
Attenuation = 20 * log (outCalibrate[n]/32767)
<outStep>
Setting of actual volume; 0 – 4, i.e. outCalibrate[n]
<sideTone>
Multiplication factor 0 – 32767 determining how much of
the original microphone signal is added to the earpiece
signal.
Side Tone Gain/dB = 20 * log (sideTone/32767)
Reference
Siemens
Note
•  Write command works only in audio modes 2 to 6!
•  Read and write options of this command refer to the active audio mode.
• The 
values 
<outStep> can be changed also by ^SNFV.
•  The range of <outCalibrate> is up to 65535 but will be suppressed to
32767. A value above <outCalibrate> = 65535 will cause a error
•  Changed values will not be stored automatically, but via the AT command
AT^SNFW except <outStep>. The parameter <outStep> will be saved after
AT^SMSO only.
•  The volume level as well as mute affects all audio modes.
•  In case of audio mode 1 the parameter <outStep> has no effect.
•  CAUTION! When you adjust audio parameters avoid exceeding the maxi-
mum allowed level. Bear in mind that exposure to excessive levels of noise
can cause physical damage to users!