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VP 12
Vocal Processor
Features & Benefits
Introduction
The VP12 is a full featured vocal
processor offering a plethora of
processing functions for microphone control. This unit offers
more precise control at a price
well below any comparable
product of it’s kind, while maintaining superior audio quality.
Design
The VP12 is a single input, two
output vocal processor. The unit
features switchable microphone
and line level inputs, de-esser,
gate/expander, compressor and
equalization with parametric and
cut filters.
Target Markets
The primary market for the VP 12
is broadcast facilities that require
vocal processing for on-air and
production studio microphones.
The secondary markets are any
type of studio doing vocal recording (including voice-overs and
ADR (additional dialog replacement) for film and video). The
third market is live sound, including installed systems in
churches, auditoriums, board
rooms and other systems requiring precise vocal microphone
control.
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Input Section Front Panel
INPUT GAIN control
This control adjusts microphone
input level. Set this to make the
OL (Overload) LED flash occasionally. If the OL LED is on constantly, the level is too high—no
illumination means the level is
too low. It’s important to have
this gain stage set up properly to
maintain the best signal-to-noise
ratio.
LINE/BOTH/MIC switch
This three position switch allows
selection of which rear panel
input is active: line, mic, or a
sum of both inputs.
Input Section Rear Panel
MIC IN
This XLR accepts microphone
level inputs.
LINE/EXPAND IN
connectors
Use either the balanced/unbalanced ¼" TRS or the screw
terminals to connect a line level
input. Do not use both.
48V PHANTOM POWER
switch
This engages 48V phantom power
for condenser microphones. The
associated red LED indicates that
phantom power is on. Be sure the
mic can accept 48V phantom.
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Cut Filters
De-esser
DE-ESS THRESHOLD
HI CUT FILTER
This control rolls the high frequencies off at a rate of 12 dB
per octave. The frequency designator (3 kHz to 40 kHz) is the
corner frequency at which the
high end starts to roll off. Turned
all the way clockwise, the high
cut filter is essentially out of the
circuit.
DE-ESS FREQUENCY
This control selects the upper
range of frequencies that the deesser circuit responds to. A
setting of 700 Hz is for extreme
de-essing, while 9 kHz provides
very light de-essing.
This control determines the level
in dBu that the upper frequencies (as set by the FREQUENCY
control) must exceed to activate
de-essing. A setting of -50 deesses everything, while at 20 no
de-essing occurs. The THRESHOLD
LED illuminates when the deesser threshold has been reached
and the de-esser is active.
LOW CUT FILTER
This control rolls the low frequencies off at a rate of 12 dB per
octave. The frequency designator
(10 Hz to 250 Hz) is the corner
frequency at which the low end
starts to roll off. Turned all the
way counterclockwise, the low
cut filter is essentially out of the
circuit.
BYPASS switch
This allows de-essing to be
bypassed for easy comparison
between de-essed and non-deessed signal.
DE-ESS RATIO switch
This sets the amont the sliding
band filter will “slide” for a given
amount of sibilance. The ratio
settings are adjustable from MILD
(a little de-essing), NORM (moderate de-essing), and MAX (heavy
de-essing).