Sierra Wireless MC8775 Reference Manual page 101

Table 7-3: Voice command details (Continued)
!AVMICGAIN
=<profile>, <value>
!AVMICGAIN?
<profile>
Supporting Mini Cards:
•
MC8775V
•
MC8785V
•
MC8790V
•
MC8791V
•
MC8792V
Rev 2.9 Oct.08
Command
Set / query the microphone gain
This command sets the microphone gain for the specified audio profile.
This setting provides a set of twenty-six gain levels from -6 dB to
+49.5 dB (steps of 1.5 dB). The gain is applied to the analog audio input
prior to its conversion into the digital domain.
This setting is stored in non-volatile memory and persists across power
cycles.
Module-specific details:
•
•
Usage:
•
•
Parameters:
<profile> (audio profile number)
•
•
•
•
•
•
•
•
<value> (gain value):
•
Description
MC8775V:
· The change to the audio system takes place immediately
if the specified audio profile is active.
· This command has no effect if the specified profile's
external PCM interface is enabled. Use
to disable the interface.
MC8785V / MC8790V / MC8791V / MC8792V:
· The change to the audio system takes place the next time
the sound device (re)starts.
· This command has no effect if a PCM audio proifile (ID 6
or 7) is enabled.
AT!AVMICGAIN=<profile>, <value> sets the microphone gain for the
specified <profile>.
AT!AVMICGAIN?<profile> returns the microphone gain (<value>) for
the specified <profile>.
0 = Handset
1 = Headset
2 = Car kit
3 = Speaker phone
4 = Auxiliary
5 = TTY
(MC8785V / MC8790V / MC8791V / MC8792V only)
6 = Auxiliary external PCM (128 kHz clock)
(MC8785V / MC8790V / MC8791V / MC8792V only)
7 = Primary external PCM (2 MHz clock)
Valid values: 0–25 (0 = -6 dB, 25 = 49.5 dB)
Voice Commands
!AVEXTPCMSEL
101