Advanced Mode - Motorola G24 Developer's Manual

Table 2-11
Audio Path
Handset
Headset
Alert
Digital

Advanced Mode

Advanced audio mode utilizes G24's unique set of AT commands for advanced audio
programming. The expanded AT command set enables to define a specific audio path and setting,
which are not part of the default configuration, for each type of audio sound (speech, DTMF
tones, rings and alerts).
Unlike basic audio mode, which provides predefined audio paths, the advanced audio mode
provides full control over the G24 audio interface and its parameters, and differentiates between
each type of audio sound.
Table 2-12
part of the complete advanced audio AT command set.
January 1, 2006
describes the available audio paths in Basic mode.
Table 2-11: Basic Mode Audio Paths
Input Signal
MIC
HDST_MIC
PCM_DIN
describes the advanced mode audio programming features. These features are only a
Table 2-12: Advanced Mode Commands
Command
AT+MAPATH
AT+MAFEAT
AT+MAVOL
AT+MMICG
AT+MADIGITAL
Module Hardware Description
Chapter 2: Hardware Interface Description
Output Signal
SPKR_N, SPKR_P Default audio path for speech and
DTMF tones.
SPKR_N, SPKR_P Alternate path for headset device.
Enable by setting HDST_INT_N
interface signal low.
ALRT_N, ALRT_P Default alert and ringer loudspeaker
output device.
PCM_DOUT Enable digital path by
AT+MADIGITAL=1
Description
Sets the input device for voice, and the output
devices for voice, DTMF tones, rings and
alerts.
Enables and disables the speech processing
algorithms - Echo suppression, noise sup-
pression and sidetone.
Sets the gain (amplification) level of the
selected analog output device.
Sets the gain (amplification) level of the
selected analog input device.
Switches between analog and digital audio
paths.
Description
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