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AUDIO COMMANDS

201 AT Commands for EV-DO-EV3 Modems

Parameters and Values

<prof> Current profile.

0 Standard profile.

1-3 Extended profile, modifiable.

Notes

 To save <prof> value in non-volatile memory, use the AT&W command.

Audio Profile Setting #PSET

Set command sets parameters for the active audio profile. It is not allowed if the active audio profile is 0.

The Read command returns the active profile in the format:

#PSET:<scal_in>,<scal_out>,<side_tone_atten>,<adaption_speed>,

<filter_length>,<rxtxrelation>,<nr_atten>,<nr_w_0>,<nr_w_1>,

<add_atten>,<min_atten>,<max_atten>

Test command returns the supported range of values for audio parameters.

Syntax

Command Command type

AT#PSET=<scal _in>[,<scal _out>[,<side_tone_atten>

[,<adaption_speed>[,<filter_length>[,<rxtxrelation>

[,<nr_atten>[,<nr_w_0>[,<nr_w_1>[,<add_atten>

[,<min_atten>[,<max_atten>]]]]]]]]]]]]]]]]

Set

AT#PSET? Read

AT#PSET=? Test

Parameters and Values

<scal_in>

-6-6 Microphone line digital gain (unused).

<scal_out>

-6-6 Earpiece line digital gain (unused).

<side_tone_atten>

-1-24 Side tone attenuation (unused).

<adaption_speed>

0-2 LMS adaptation speed.

<filter_length>

10-50 LMS filter length (number of coefficients).

-90-90 Speaker to micro signal power (unused).

<nr_ atten >

6-42 Noise reduction max attenuation (unused).

<nr_w_0>

0-9 Noise reduction weighting factor (band 300-500Hz) (unused).

<nr_w_1>

0-9 Noise reduction weighting factor (band 500-4000Hz) (unused).

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Multitech CDMA Betriebsanweisung Seite 201