Microphone Settings - Redback A 4469 Operating Manual

8.6 A 4660 Microphone settings
Press the "microphone" button to display the screen shown in figure 13.
From this menu the chime options and action of the paging button are set.
1 Console Speaker - This button enables the speaker built into the A 4660. If enabled the chime will be audible
from the console as well as through the paging system.
2 Chime In - This button allows you to enable or disable the pre-annoucement chime on the paging audio. The
level can also be adjusted to suit the installation. For instance a user may require the pre-annoucement chime be
louder than the normal programming. The standard pre-announcement chime can be replaced by an MP3 file
installed on a MIcro SD card by the user. A folder called "chime_in" needs to be created and the required MP3 file
inserted into this folder (refer to section 16.0 for installing MP3 files). The micro SD card needs to be inserted into
the A 4660 and kept there.
Note: The Micro SD card must be inserted into the A 4660 paging console. Not the amplifier.
3 Chime Out - This button allows you to enable or disable the post-annoucement chime on the paging audio. The
level can also be adjusted to suit the installation. For instance a user may require the post-annoucement chime be
louder than the normal programming. The standard post-announcement chime can be replaced by an MP3 file
installed on a MIcro SD card by the user. A folder called "chime_out" needs to be created and the required MP3
file inserted into this folder. The micro SD card needs to be inserted into the A 4660 and kept there.
Note: The Micro SD card must be inserted into the A 4660 paging console. Not the amplifier.
3 PTT Action - This button determines the action of the paging button. If momentary action is selected the paging
button will need to be held to page. If alternate action is selected the paging button needs to be pressed and
released to start paging. The paging mode will stay active for the period set by the timeout, or until the paging is
cancelled by the user.
5 Mic AGC - Allows for the microphones automatic gain control (AGC) effect to be adjusted up or down according
to installation requirements. AGC allows the signal to automatically adjust to compensate for variations in level
of peoples voices when making paging annoucements. Please note high levels of AGC will increase audible noise
in the system while paging.
6 Paging Level - Adjust the paging level to suit the installation. This allows for paging to be adjusted to suit the
level of programming from other sources connected to the system.
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Chime through local speaker ->
DISABLED
Enable intro and outro
chimes and chime volume.
Chime In PTT Action
Chime Out
Enabled Enabled ALTERNATE
Vol Vol
-9B -9dB
3
2
Fig 13 - Microphone Settings Screen.
Redback® A 4469 Audio Switcher
1
Speaker
Control paging microphone
level and presence & level
for AGC.
Mic AGC
Enabled
Timeout
4m
AGC
1.5x
4 5
Redback® Proudly Made In Australia 13
Vol
-0dB
Back
6