Alphatech Brave series, Руководство пользователя и обслуживания, Страница: 13 / 53

BRAVE SlimDP
– User and service manual 13
2.1.5 Voice level
The principle of setting acoustic paths:
Here we have three parameters 71.72 and 73 Using the interaction of these
parameters can be set to sound in different conditions.
1. quiet environment parameters 71,72,73 are set to 7
2. environment where is a strong ambient noise at the communicator and
quiet environment at the phone. Here is both necessary to reduce the
microphone gain (parameter 72 = 1-3) and also change the ratio of the
parameters 71/73 way 73 enlarge the the parameter (parameter 73 = 11-
15) and 71 parameter smaller value (71 = 2-4)
3. environment where is a strong ambient noise at the phone and quiet
environment at the communicator. Here we leave the parameter value of
72 = 7 and 73 and 71 parameters set as follows - parameter71 = 11 to 14
and 73 = 2 to 4
The principle of settin parameters is - signal from the microphone is amplified
by the sum of parameters
72+71 = volume of microphone and signal to the
speaker is amplified by the sum of parameters 71+73 = volume of speaker .
To switch the direction of the ratio is evaluated parameters ( threshold ) 73/72.
- If parameter 72 is greater than the parameter 73, thus favoring the
direction from the microphone. We choose when the direction to the
phone is interrupted.
- If parameter 73 greater than parameter 72, thus favored direction to
the speaker. We choose this if the interrupted sound in the speaker of
communicator.