Voice output, function - GF82.85-P-3001GI

MODEL 163 as of 1.9.01 with CODE (522) Modular control system (MCS) radio USA with CODE (357) Navigation system - additional unit with CODE (818b) Single CD player - additional unit with CODE (491) U.S. version 

The navigation system guidance  feature is supported significantly by voice output  .

The voice data was originally stored as single-word segments on the navigation CD-ROM  . This data set is transmitted automatically by the CD-ROM  to the navigation processor and stored there.

The navigation processor  interlinks these word segments to complete instructions or information and generates corresponding AF  signals. The generated AF  signals are transmitted internally in the radio and navigation module (A2/56)  to the audio signal processing if required, amplified there and output via the vehicle loudspeakers.

With the sound system (code 810)  the voice signals are transmitted to the sound amplifier (A2/13) from the audio signal processing via the digital data bus ( D2B  ), amplified there, and then output via the vehicle loudspeakers.

Several short, sequential drive recommendations are compiled to one single voice output.

Loading voice from CD-ROM 

Only English is presently available for voice output on the radio and navigation module (A2/56)  .

Volume of voice output 

The voice output volume can be adjusted during voice output  . This ensures that a defined interval is maintained between the volume of the current audio source and voice output.

Example: 

If the volume is reduced during voice output and the preceding volume interval to the audio signal is not reached the radio and navigation module (A2/56) 

reduces the level of the audio signal until the specified volume interval is reached again. The volume of the audio signal is then again increased after completion of the voice output to the level present before the voice output.

Moreover, the volume of the voice output cannot be reduced below a certain minimum level  .

Voice output mute circuit 

Navigation voice output can be muted by actuating the mute multifunction key. Muting remains active until the mute multifunction key is pressed again.

	Navigation mode, function		GF82.85-P-2012GI
	Radio and navigation module, location/purpose/ design/function		GF82.61-P-4109GI