Sierra Wireless MC8775 Reference Manual page 109

Table 7-3: Voice command details (Continued)
!AVTXPCMFLTR
=<profile>, <tap>,
<value>
!AVTXPCMFLTR?
<profile>, <tap>
Supporting Mini Cards:
•
MC8775V
•
MC8785V
•
MC8790V
•
MC8791V
•
MC8792V
Rev 2.9 Oct.08
Command
Set / query the TX PCM filter tap
The MC87xx modem has a 7-tap PCM (Pulse Code Modulation) filter.
This command sets the TX PCM filter tap for the specified profile.
See
Usage:
•
•
Parameters:
<profile> (audio profile number):
•
•
•
•
•
•
•
•
<tap> (sets the taps in use):
•
•
•
•
•
•
•
<value> (sets the TX PCM filter tap)
•
•
•
Description
"!AVRXPCMFLTR" on page 104
AT!AVTXPCMFLTR=<profile>, <tap>, <value> sets the TX PCM
filter tap for the specified <profile>.
AT!AVTXPCMFLTR?<profile>, <tap> returns the filter setting
(<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)
0 = Tap0
1 = Tap1
2 = Tap2
3 = Tap3
4 = Tap4
5 = Tap5
6 = Tap6
Calculated using the formula:
<value>= hex number of ROUND (filter coefficient x 2
Valid range: 0x0000–0xFFFF
0x0000 on Tap6 causes the PCM filter to be bypassed.
Voice Commands
for a description of using the filters.
14
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