VOICECRAFTER
TM
CONNECTING EXTERNAL EQUIPMENT
16
(ACOUSTIC screen). Use F2
⇐
or
F3
⇒
to display EC_Si. EC_Si is a
momentary reading, and is only
updated by clicking DSP AVE again.
6. Adjust the external mixer output for
nominal level (see paragraph 7.2.2).
Then adjust Mic 2 Gain (ACOUSTIC
screen) so that the average EC_Si is
approximately -20dB. Repeat steps
2~5 for all mics in the installation.
Once Mic 2 Gain is established, level
adjustments should be made only at
the individual inputs of the mixer.
7. After all mics are calibrated, click on
Mic 2 Default Gain and use F2
⇐
and F3
⇒
to make Mic 2 Gain equal
Mic 2 Default Gain. Turn the white
noise source off. If the Voicecrafter
is being used as the white noise
source, click on Noise and use F3
⇒
to set white noise to DIS (disable)
Then set Autoadapt back to FULLY
ENABLED.
8. If an external amplifier is to be
provided, as well as an external
mixer, refer to paragraph 7.3.
9. Train the Voicecrafter. Click the
Train button (ACOUSTIC screen)
and click on F3
⇒
when prompted, to
begin a Configuration Train cycle.
10. Once acceptable training responses
have been achieved (see paragraph
4.3), store the resulting configuration
by clicking on the Store button
(ACOUSTIC Screen) followed by the
desired memory location (F1~F5).
7.3 EXTERNAL AMPLIFIER WITHOUT
LOCAL REINFORCEMENT
The Voicecrafter has a line level audio
output that is capable of driving external
power amplifiers. This line level output
is provided on a rear panel RCA jack
labeled LINE OUT.
7.3.1 INSTALLATION
Connect LINE OUT to the input of the
external amplifier. Connect the external
amplifier to the loudspeakers that are to
be used. When more than one
loudspeaker is to be used, they should
be wired
in phase (loudspeakers wired
out of phase will cause acoustic dead
zones in the conference room). For
distributed loudspeaker systems (25V,
70V, 100V), the external amplifier will
require proper interface for the constant
voltage system which is to be installed.
**The Voicecrafter internal amplifier is
not capable of interfacing to distributed
speaker systems.
POWER
MICROPHONE
CODEC
1
2
IN
OUT
AUX
IN
OUT
LI NE
OUT
SPEAKER
+
AUDIO OUT
LOCAL/ REMOTE CONTROL
TO TRAIN THIS UNIT, PRESS AND HOLD THE
"MUTE" BUT TON UNT IL T RAINING ST ART S.
2-WIRE PSTN
PHONE
LI NE
Voicecrafter
IN
OUT
Power Amplifier
+
+
-
-
Additional speakers must
be wired "In Phase"
2-conductor speaker wire
SPEAKER
-
+
S
P
E
A
K
E
R
S
P
E
A
K
E
R
