18
microphone signals only;
b). Press the “MENU” button to save and return to the
upper level menu.
5. “Down Bass Setting”
Adjust downlink bass of contribution units (except
interpretation units), range: -15dB - +15 dB.
a). Press the “
Õ
/
Ö
” button to adjust;
b). Press the “MENU” button to save and return to
upper level menu.
6. “Down Treble Setting”
Adjust downlink treble of contribution units (except
interpretation units), range: -15dB - +15 dB.
a). Press the “
Õ
/
Ö
” button to adjust;
b). Press the “MENU” button to save and return to
upper level menu.
7. “Down Threshold Level Setting”
Setup downlink audio threshold level to make sure that
the sound issuing from the built-in loudspeaker and the
headphone of each congress unit has no distortion.
a). Press the “
Õ
/
Ö
” button to select threshold level
between -21dB, -18dB and -15dB;
b). Press the “MENU” button to save and return to
upper level menu.
8. “LINE IN 2 Volume Setting”
Adjust LINE IN 2 input volume, range: mute,
-30 dB - 0 dB.
a). Press the “
Õ
/
Ö
” button to adjust volume;
b). Press the “MENU” button to save and return to
upper level menu.
9. “Microphone Gain Setting”
“Microphone gain setting” includes two submenus:
“Set All Mics”
“Set Active”
1
st
step
: power on all units
2
nd
step:
switch on any microphone (only one at a time)
as the first one and make a voice test. Keep the
acoustic impression in mind. Switch off the mic. and
switch on the next mic. and make the voice test again.
Continue until the last mic. has been tested. If your final
impression is that the sound level is not appropriate,
increase or decreases the gain in “Set All Mics” in the
CMU. Otherwise keep it unchanged.
“Set All Mics”
a). Press the “
Õ
/
Ö
” button to adjust the gain of all
microphones (press and hold the “
Õ
/
Ö
” button will
adjust
numeric
value
quickly),
range:
-15 dB - 15 dB;
b). Press the “MENU” button to save and return to
upper level menu.
3
rd
step:
Now redo the test again as “Set All Mics” setting from
step 2 does. Switch on any mic as the first and check
the sound result again.
Note:
)
“Down” and “downlink” used in 5./6. and 7. indicate
the signal transmission direction from the main unit
to the congress units.
