Audio Optimization
The features described in this section help optimize voice
quality.
Turning the Mic AGC feature On or
Off
The Mic AGC feature allows the radio to automatically
keep the microphone gain within a proper range during
transmission. This provides optimized voice with proper
volume for the receiving party.
To turn this feature on or off, go to
Menu
>
Settings
>
Audio Set
>
Digital Mic AGC
/
Analog Mic AGC
, and
then select
On
or
Off
.
Turning the Treble Boost feature
On or Off
The Treble Boost feature allows the radio to output louder
voice for better audio clarity.
To turn this feature on or off, go to
Menu
>
Settings
>
Audio Set
>
Audio Optimization
>
Treble Boost
, and
then select
On
or
Off
.
If
this
feature
is
enabled,
the
3-Band
Equalizer
feature
is
unavailable.
Setting the 3-Band Equalizer
Feature
The 3- Band Equalizer feature allows the radio to
automatically adjust the sound effect of received voice
according to preset frequency gains.
To turn this feature on or off, go to
Menu
>
Settings
>
Audio Set
>
Audio Optimization
>
3-Band Equalizer
>
Equalizer Switch
, and then select
On
or
Off
.
To set the low, mid, or high frequency gain, do as follows:
1. Go to
Menu
>
Settings
>
Audio Set
>
Audio
Optimization
>
3-Band Equalizer
>
Low Freq.
Gain
/
Mid Freq. Gain
/
High Freq. Gain
, and then
press the
OK/Menu
key.
2. Press the
Up
or
Down
key to change the value, and
then press the
OK/Menu
key.
It is recommended that you set the frequency gains
according to the following table:
Scenario
Low
Frequency
Gain (dB)
Mid
Frequency
Gain (dB)
High
Frequency
Gain (dB)
Square
0
3
5
Indoor
3.5
1.5
–1.5
Downtown
2
2
8
Turning
the
Audio
Feedback
Suppression
Feature
On
or
Off
The
Audio
Feedback
Suppression
feature
helps
reduce
the
noises
arising
from
short-distance
communication.
To turn this feature on or off, go to
Menu
>
Settings
>
Audio Set
>
Audio Feedback Suppressors
, and then
select
On
or
Off
.
MIC
&
SPK
The
MIC
&
SPK
feature
allows
you
to
select
the
microphone
and
speaker
used
by
the
radio
for
transmitting
and
receiving
voice.
Selecting
the
Microphone
To
set
the
way
in
which
the
radio
uses
the
external
or
internal
microphone,
go
to
Menu
>
Settings
>
Radio
Set
>
MIC & SPK
>
MIC Selection
, and then select one of
the following as required:
l
Follow PTT
: When you transmit by pressing and
holding the radio's PTT key, the radio uses the
internal microphone; When you transmit by pressing
and holding the PTT key on external device, it uses
the external microphone.
l
Only Internal
: The radio uses only the internal
microphone.
l
Only External
: The radio uses only the external
microphone.
l
External First
: When an audio accessory is
connected, the radio uses the external microphone;
otherwise, it uses the internal microphone.
Selecting the Speaker
To set the way in which the radio uses the external or
internal speaker, go to
Menu
>
Settings
>
Radio Set
>
MIC & SPK
>
SPK Selection
, and then select one of the
following as required:
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