Basic Audio Setup; Advanced Audio Setup - Motorola AT Commands G24-L Developer's Manual

Audio Control of Path, Gain and Algorithms is available by these two different modes' sets of
commands. It is advised to select the audio mode according to the application needs, either the
'Basic Audio' set or the 'Advanced Audio'.

Basic Audio Setup

This mode's set of commands suits most users. It provides a simple audio control. In this mode
the G24-L will also adjust the paths automatically upon headset interrupt. The G24-L powers up
in 'Basic Audio' mode.
Basic audio specific commands are: +CRSL, +CLVL, +CMUT, S94, S96.
Figure 3-3
Mic
Headset
Mic
Figure 3-3: Basic Audio Setup

Advanced Audio Setup

This mode suits users which require a full control of the audio. When using these advanced
commands the audio control will ignore the headset interrupt (when the headset will be connected
the paths will not change automatically). Upon invoking any of the advanced Audio specific
commands: +MAVOL, +MAPATH, +MAFEAT, +MAMUT the G24-L will enter 'Advanced
Audio' mode. G24-L will remain in 'Advanced audio' mode until power cycle.
While in Advanced Mode, all Basic Audio AT commands (+CRSL, +CLVL, +CMUT, S94, S96)
are blocked and will return an error.
Figure 3-4
The mic and speaker active are
set using AT+MAPATH
Figure 3-4: Advanced Audio Setup
G24-L supports both analog and digital audio. Digital audio is supported in both basic and
advanced audio setups. Switching between analog and digital audio modes is done by
AT+MADIGITAL command.
April 15, 2008
shows the basic audio setup.
Idle mode
There is no signal on the HDST_INT line.
G24-L
shows the advanced setup.
G24-L AT Commands Reference Manual
Chapter 3: AT Commands Reference
The user has attached a device to the HDST_INT line ,
and caused a change in the audio input and output path.
Speaker Mic
Headset
Headset
Speaker
Mic
Mic
Headset
G24-L
Mic
HeadSet mode
Speaker
Headset
G24-L
Speaker
Speaker
Headset
Speaker
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