4
MPS 409 Setup Guide (Continued)
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68-1833-50
Rev. A
07 10
Setting the Microphone Talk-Over Threshold
Microphone threshold (the volume where vocal audio is detected) and the program audio level during talkover are adjustable via SIS
commands. See
Audio Adjustments
in the
MPS 409 User Guide
for additional SIS commands.
1.
Speak into the microphone in a normal voice. The main program audio level should drop moderately. If not, adjust the microphone
threshold level.
2.
Stop speaking into the microphone. Main program audio should recover to its previous level after approximately four seconds. If
not, adjust the microphone threshold level.
3.
If the program audio during talkover is too loud, or too soft, adjust the program audio level.
Mic talk-over threshold
Display talk-over threshold
X*
*
2 #
Thr
X*
]
Shows the mic threshold
number.
X*
= 0 through 15,
default = 8.
Decrement threshold
– * 2#
Thr
X*
]
Decrements mic threshold one
step.
Increment threshold
+ * 2#
Thr
X*
]
Increments mic threshold one
step.
View mic talk threshold
2 #
X*
]
