.- -
Section 4 -
Algorithms
SMALL PLATE, LARGE PLATE
A
plate
reverb takes the vibrations from a
metal
plate
and
uses
them
to create a metallic
sounding
reverb.
00
-
Small
Plate is a tight
sounding
plate reverb,
and
00
- Large
Plate
simulates a larger plate reverb.
Although
they
may
be
named
small
or
large,
the
parameters
still serve the same function
in
each
algorithm. Small
plate
reverbs are
most
often
used
in
the
studio for
drums
and
percussion, while
large
plate
reverbs
are
often
used
to enhance a vocalist's performance.
Small Plate, Large Plate Reverb Signal Routing
Definition
(Decay
Diffuser)
Definition
(Decay
Diffuser)
L
Main
Outputs
R
The
two
plate
reverb
algorithms share exactly the
same
signal
routing
topology. The internal
values
of
the
components
(not
user
programmable) differentiate the large
and
small
plate
reverbs.
The
signal
goes directly
through
the diffusers
which
smear
the signal. The signal is
then
routed
to a
larger
decay diffuser,
known
as Definition,
and
is diffused
over
a
period
of time (creating a
decay). The
signal
is
then
routed
to the
output,
and
then
goes
through
a low pass filter. There is
a
parameter
that
controls the decay time of
both
the left
and
right signals (shown as triangles
above). This signal
is
then
routed
back
into
the
definition. There is also
an
external
dry
signal
(not
shown)
that
goes directly from the
input
to the
output
and
is controlled
with
the
mix
parameter
(01).
The
user
controllable
parameters
for the plate reverbs algorithms are:
01-Mix
02-Volume
See the descriptions
under
the
Mix
and
Volume Parameters, found earlier in this section.
03-Decay
Small Plate Range: 0.20 to 100.0 sec.
Large
Plate Range: 0.40
to
140.0 sec.
This
parameter
controls the
amount
of time
it
takes for
the
reverberation to decay. Percussion
sounds
best
using
the
Small Plate.
High
values of
decay
sound
good
on
these algorithms.
04 - Predelay Time Small Plate Range: 0 to 500
ms
Large Plate Range: 0 to 430
ms
This
parameter
controls the
amount
of time
it
takes for
the
input
signal to
be
presented to the
plate
reverb. A
value
of
0
would
offer
no
delay.
ENSONIQ
DP/4
Musician's Manual
61
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