Multitech CDMA Guía de usuario Pagina 199

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AUDIO COMMANDS
199 AT Commands for EV-DO-EV3 Modems
Audio Profiles
Audio Profile Factory Configuration #PRST
Execute command resets the actual audio parameters in the non-volatile memory of the device to the default set.
It is not allowed if active audio profile is 0. The audio parameters reset are:
Microphone line gain
Earpiece line gain
Side tone gain
LMS adaptation speed (step size)
LMS filter length (number of coefficients)
Speaker to micro signal power relation
Noise reduction max attenuation
Noise reduction weighting factor (band 300-500Hz)
Noise reduction weighting factor (band 500-4000Hz)
AGC additional attenuation
AGC minimal attenuation
AGC maximal attenuation
Test command returns the OK result code.
Syntax
Command Command type
AT#PRST Execute
AT#PRST=? Test
Example
Current audio profile is reset.
AT#PRST
OK
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