Table of Contents
Advertisement
Adjusting the gate threshold
control
for fine arts
programming.
Fine
arts
programming
usually requires
less
AGC
(automatic gain
control)
than
does
"general"
programming. However,
if
AGC
is
reduced
in
the
obvious
way
(by turning
down
the
input
attenuator
controls
to
reduce
the
amount
of gain
reduction),
the
gating
circuit
will
tend
to
further
reduce gain
below
the
intended
level
when
it
is
activated.
A
better
way
to
reduce
the
amount
of
compression
is
to
set
the
gate
threshold
control
at
6 or
higher,
and
to
adjust the
INPUT
attenuator
controls so
that
the
total
master
g/R
meter
reads
0
when
the
console or switcher
is
peaked
at
100%.
Setting the
GATE
THRESHOLD
control
very high
like
this
prevents the
8182A
from
ever recovering
to
maximum
gain,
because
the gate
comes on
when
the
program
level
is
still
high
enough
to
produce
gain
reduction.
For example:
to limit
the
amount
of
normal
compression
to
5dB
(instead
of
the
usual
lOdB),
adjust the
GATE THRESHOLD
control
so
that
the
gate
indicator
lights
whenever
the
total
master
g/r
meter
reads
+5
or
greater.
To
summarize,
when
the
gate THRESHOLD
control
is
set at
6 or
higher,
it
can
also
function
as
a
dynamic
range
control
which
governs
the
amount
of compression
that
can be
achieved.
Setting
the loudness controller switch
for
music
videos.
Since
the
loudness
controller controls subjective
loudness,
it
can sometimes
slightly
reduce
the
impact of
rock
and
roll
programming
—
particularly
with "heavy metal"
cuts
or other material
that
has a
great deal
of
3kHz
energy. In
a
music
video
format,
the desire for
loudness
control
must
therefore
be weighed
against the
possibility
of reduced musical
impact.
(It
may
be
desirable
use
remote
control
to
switch the
loudness
controller
IN
for
all
breaks,
then
back
OUT
for
music
videos).
5-6
Hide quick links:
Advertisement
Table of Contents
