Specifications

Voice Commands
Rev. 8 May.12 Proprietary and Confidential 135
!AVCODECSTG (continued)
Set/report CODEC sidetone gain (continued)
<value> (Gain value for selected <profile>)
• The value is entered/returned in hexadecimal format:
• Min=0x0000 (mute)
• Max=0xFFFF
• To calculate the gain in dB, convert <value> to decimal (<decvalue>) and use
the following formula:
Gain = 20 log
10
(<decvalue> / 16384) - 12
• Unity gain=0xFECA
!AVCODECTXG
Supporting chipsets (voice-
enabled devices only):
• MSM6290 (min f/w rev:
K1_0_2_0ap)
• QSC6270 (min f/w rev: S2.0)
Set/report CODEC Tx gain
Set the CODEC Tx gain for the specified audio profile. The CODEC Tx gain is
applied to the digital signal after its conversion from the analog domain to provide
additional gain range in the transmit direction.
The gain range is chipset-dependent:
• QSC6270: -66dB to +30dB
• Other chipsets: -84dB to +12dB
This setting is stored in non-volatile memory and persists across power cycles.
Note: This command has no effect when PCM audio is being used.
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!AVCODECTXG=<profile>, <value>
Response:
OK
Purpose: Set the CODEC Tx gain for the specified <profile>.
• Query: AT!AVCODECTXG?<profile>
Response:
<value>
OK
Purpose: Return the current CODEC Tx gain (<value>) for the specified
<profile>.
(Continued on next page)
Table 7-5: Voice command details (Continued)
Command Description