At^snfo Set Audio Output (= Loudspeaker Path) Parameter - Siemens TC37 Module At Command Reference

AT Command Set

6.24 AT^SNFO Set audio output (= loudspeaker path) parameter

Test command
AT^SNFO=?
Read command
AT^SNFO?
Write command
AT^SNFO=<out-
BbcGain>,<out-
Calibrate[0]>,...<out
Calibrate[4]>,<out-
Step>,<sideTone>
Reference
Siemens
TC3X_ATC_01_V04.00
Response
(list of supported
^SNFO:
<outCalibrate[0...4] >), (list of supported <outStep>), (list of supported
<sideTone>s)
OK
Parameter
See write command
Response
^SNFO: <outBbcGain>, <outCalibrate[0]>,...<outCalibrate[4]>, <outStep>,
<sideTone>
OK
Parameter
See write command
Set TA's loudspeaker path parameters.
Response
<outBbcGain> <outCalibrate[0]>...<outCalibrate[4]> <(outStep)> <sideTone>
OK
Parameters
Setting of DAC gain amplifier attenuation 0 – 3 (0=0 dB,
<outBbcGain>
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]
Multiplication factor 0 – 32767 determining how much of
<sideTone>
the original microphone signal is added to the earpiece
signal.
Side Tone Gain/dB = 20 * log (sideTone/32767)
Note
· The read and write commands refer to the active audio mode.
· The write command works only in audio modes 2 to 6.
· The range of <outCalibrate> is up to 65535, but will be suppressed to
32767. A value above <outCalibrate> = 65535 will cause an error.
· <outStep> can also be selected with AT^SNFV (see Chapter 6.27 and
AT+CLVL (see Chapter 4.21).
· Any change to <outStep> takes effect in audio modes 2 to 6. That is, when
you change <outStep> and then select another mode with AT^SNFS, the
same value will be applied. The only exception is audio mode 1 which is
fixed to <outStep>=4.
· The value of <outStep> is stored non-volatile when the ME is powered
down with AT^SMSO or reset with AT+CFUN=1,1. Any other values
changed with AT^SNFO need to be saved with AT^SNFW for use after
restart.
· CAUTION! 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!
Page 165 of 204
(list
<outBbc Gain>),
of supported
29.05.2002