At^snfi Set Microphone Path Parameters - Siemens MC35 Command Set

AT Command Set

8.21 AT^SNFI Set microphone path parameters

Test command
AT^SNFI=?
Read command
AT^SNFI?
Write command
AT^SNFI=<inBbcGain>,
<inCalibrate>
Reference
Siemens
MC35_ATC_01_V05.00
Response
^SNFI: (list of supported <inBbcGain>s), (list of supported <inCali-
brate>s) OK
Parameters
See write command
Response
^SNFI: < inBbcGain >, <inCalibrate> OK
Parameters
See write command
Response
TA sets microphone path amplifying.
OK
Parameters
<inBbcGain> Setting for ADC gain Amplifier 0 - 7 (0=0dB, 7=42dB,
8 steps of 6 dB)
<inCalibrate> Multiplication factor 0 – 32767 for input samples at-
tenuation=20*log (inCalibrate/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 <inCalibrate> is up to 65535 but will be suppressed to
32767. Values above <inCalibrate> = 65535 will cause a failure.
· Changed values need to be stored with AT^SNFW for use after re-
start.
· Attention! When you adjust the audio parameters avoid exceeding the
maximum allowed level. Bear in mind that exposure to excessive lev-
els of noise can cause physical damage to users!
Page 207 of 256 15.07.2002