Specifications

Voice Commands
Rev. 8 May.12 Proprietary and Confidential 149
!AVRXPCMIIRFLTR
(continued)
Set/report the Rx PCM IIR filter parameters (continued)
Usage:
• Execution: AT!AVRXPCMIIRFLTR=<profile>, <param>, <stages>
or AT!AVRXPCMIIRFLTR=<profile>, <param>, <a1>, <a2>, <b0>,
<b1>, <b2>
Response:
OK
Purpose: Set the number of stages for the filter, or set the parameters for a
specific stage.
• Query: AT!AVRXPCMIIRFLTR?<profile>, <param>
Response:
<stages>
or <a1>,<a2>,<b0>,<b1>,<b2>
OK
Purpose: Return the number of IIR filter stages, or the parameters for a
specific stage.
Parameters:
<profile> (Audio profile number)
• MSM6290, QSC6270:
• 0=Handset
• 1=Headset
• 2=Car kit
• 3=Speaker phone
• 4=Auxiliary
• 5=TTY
• 6=Auxiliary external PCM (128 kHz clock)
• 7=Primary external PCM (2 MHz clock)
• MDM6200:
• 7=Primary external PCM (2 MHz clock)
<param> (Stage number):
• 0=Configure the number of <stages>
• 1–5
<stages> (Number of stages)
• 0–5
<a1> (IIR filter design parameter a1)
<a2> (IIR filter design parameter a2)
• Signed hexadecimal
• 0x00000000–0xFFFFFFFF
<b0> (IIR filter design parameter b0)
<b1> (IIR filter design parameter b1)
<b2> (IIR filter design parameter b2)
• Signed hexadecimal
• 0x00000000–0xFFFFFFFF
Table 7-5: Voice command details (Continued)
Command Description