C
OMREX
C
ORPORATION
12
STAC Product Manual
13
DIP S
WITCHES
1 - 8
9 - 16
(Note: The
UP position = ON)
ON
= Microphone level send input (–70 to –50 dBu)
OFF
= Line level send input (–10 to +10 dBu)
Note: This switch only affects the On Air
Send Input
. The
Hold Audio
Input
is always line level.
ON
= Add 6 dB gain to the incoming phone lines. Useful in situations with
exceptionally low incoming phone line level.
ON
= Add
On Air Send
audio to the
Aux Out
output.
OFF
= Only Hybrid 1 and Hybrid 2 receive audio are present at the
Aux
Out
output.
ON
= A short noise burst is sent down each line when it is put
On Air
. This
helps the hybrids to adapt more quickly but can be distracting to callers.
OFF
= No noise burst is sent, but a short alert tone is sent to notify callers
they are
On Air.
These switches control whether any caller suppression is applied. Caller
suppression allows the send audio input (for instance, a talk-show host)
to dynamically control the level of the incoming caller audio. This not
only enhances the perceived trans-hybrid loss of STAC but also allows the
studio host to control the conversation, since he or she can more easily
“talk over” the callers. When
DIP Switch 5
is
ON,
6 dB of caller control is
applied on the presence of host audio. When
DIP Switch 6
is
ON
, 12 dB is
applied. When both
DIP Switches 5 & 6
are
ON
, a very aggressive 18 dB
of caller suppression is applied.
ON
= STAC will dynamically adjust the level of incoming caller audio to
provide more uniform level output on the incoming caller audio.
OFF
= No AGC is applied to the incoming caller audio.
1) O
N
A
IR
S
END
I
NPUT
L
EVEL
2) C
ALLER
B
OOST
3) A
UX
M
IX
4) B
URST
A
DAPT
5 & 6) C
ALLER
“D
UCKING
”
C
ONTROL
7) AGC
