GM29 INTEGRATOR’S MANUAL
•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
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.
CODEC | DSP |
ATMS AuxInGain
TxPCM
|
| PCMOUT | PCMULD | Speech | |
TxPGA | TxGainLow | decoder | |||
|
| ||||
|
|
|
| F/R | |
|
|
|
|
|
MICP
MicPath switches
SideTone |
Handsfree
MicInGain
MICN
Aux Amp
SpkPath switches
BEARP
Ear Amp
BEARN
RxPCM
Gain |
SideTone
switch
RxPGA | Volume | PCMIN PCMDLD | Encoder |
| F/R | ||
|
|
| |
|
|
|
|
EchoCancel
NoiseRed
Figure 4.1 Audio diagram of the CODEC
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LZT 123 7361 R1A