GM28 INTEGRATOR’S MANUAL
94
LZT 123 7468 R1A
• configure the whole profile, specifying each audio parameter in a
comma separated list;
• set a single parameter, given by its parameter number;
• save the current profile to non-volatile memory under the current
profile number (see AT*E2APR).
The current audio settings can also be displayed by running the read
command AT*E2EAMS?
Default audio settings are given in AT*E2APR.
Abortability:
This command may not be aborted.
Refer to the diagram below to understand which parts of the audio
circuit are affected by the various parameters.
Figure 4.1 Audio diagram of the CODEC
AuxInGain
MicInGain
SideTone
Gain
Aux Amp
Ear Amp
TxPGA
TxGainLow
RxPGA
Volume
TxPCM
RxPCM
Speech
decoder
F/R
EchoCancel
Handsfree
NoiseRed
Encoder
F/R
ATMS
MICP
MICN
BEARP
BEARN
PCMOUT
PCMIN
PCMULD
PCMDLD
DSP
CODEC
SideTone
switch
MicPath
switches
SpkPath
switches
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