Specifications

AirPrime UMTS / LTE MC/SL-Series Extended AT Command Reference
136 Proprietary and Confidential 2130616
!AVCODECTXG (continued)
Set/return the Tx gain (continued)
Parameters:
<profile> (Audio profile number)
• Valid values:
• 0=Handset
• 1=Headset
• 2=Car kit
• 3=Speaker phone
• 4=Auxiliary
• 5=TTY
<value> (Gain value for selected <profile>)
• The value is entered/returned in hexadecimal format:
• Min=0x0000 (mute)
• Max=0xFFFF
• QSC6270:
• To calculate the gain in dB, convert <value> to decimal (<decvalue>) and
use the following formula:
Gain = 20 log
10
(<decvalue> / 2048)
• Unity gain=0x0800
• Other chipsets:
• To calculate the gain in dB, convert <value> to decimal (<decvalue>) and
use the following formula:
Gain = 20 log
10
(<decvalue> / 16384)
• Unity gain=0x4000
!AVDEF
Supporting chipsets (voice-
enabled devices only):
• MDM6200
• MSM6290 (min f/w rev:
K1_0_2_0ap)
• QSC6270 (min f/w rev: S2.0)
Set audio settings to default values
Set all the configurable audio parameters to default values. The default values are
also loaded into non-volatile memory.
Device-specific details:
• MSM6290 (Firmware revisions K2_0_7_8ap and lower):
• The change takes effect the next time the modem restarts.
• All other chipsets/firmware revisions:
• The change takes effect immediately for the specified profile.
Usage:
• Execution: AT!AVDEF
Response:
OK
Purpose: Set audio settings to default values.
Table 7-5: Voice command details (Continued)
Command Description