Orban OPTIMOD-FM 5700i, Руководство по эксплуатации

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OPTIMOD-FM DIGITAL INSTALLATION
2-27
The reference level VU and PPM (Peak) settings track each other with an offset
of 7 dB. This compensates for the typical indications with program material of a
VU meter versus the higher indications on a PPM.
This step sets the center of the 5700i’s gain reduction range to the level to which
your studio operators peak their program material on the studio meters. This as-
sures that the 5700i’s processing presets will operate in their preferred range.
You may adjust this level with a standard reference/line-up level tone from your
studio or with program material.
Note that in this step, you are calibrating to the normal indication of the studio
meters; this is quite different from the actual peak level.
If you know the reference VU or PPM level that will be presented to the 5700i,
set the reference level to this level, but please verify it with the steps shown di-
rectly below.
A) Press the
Recall
button.
B) Turn the knob until
ROCK-MEDIUM
appears in the lower line of the display.
C) Press the
Recall Next
button.
D) Navigate to Setup > I/O C
ALIB
> A
NLG
I
N
C
ALIB
> AI R
EF
(VU or PPM, depending
on which metering system you use ) .
E) Calibrate using Tone.
[Skip to step (F) if you are using Program material to calibrate the 5700i
to your standard studio level.]
a) Verify E
XT
AGC is set to N
O
.
Refer to step 1 on page 2-26.
b) Feed a tone at your reference level to the 5700i
If you are not using a studio level controller, feed a tone through your
console at normal program levels (typically 0VU if your console uses VU
meters).
If you are using a studio level controller that performs an AGC function,
such as an Orban 8200ST OPTIMOD-Studio, adjust it for normal opera-
tion.
c) Adjust the
AI R
EF
(VU or PPM
)
control to make the 5700i’s
AGC
meter
indicate 10 dB gain reduction.
d) Skip to step (G).
F) Calibrate using Program.
[Skip this step if you are using Tone to calibrate the 5700i to your stan-
dard studio level — see step (D) above.]
a) Verify E
XT
AGC is set to NO .
Refer to step 1 on page 2-26.
b) Feed normal program material to the 5700i