User's Manual

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!