Section 4 - Algorithms
Algorithm Modulators
All the algorithms allow real-time control of particular
parameters
and
share
common
modulation control parameters. The exact location of these
parameters
varies
depending
on
the
selected algorithm,
but
it is always the last eight parameters for all of the algorithms:
Mod1 Source
Mod2 Source Range: Off/Controller 1 - 8
These parameters select
the
mod
sources
used
to
modulate
the
parameter
Destinations. Each
algorithm has a choice of
two
different
mod
sources.
Anyone
of the eight DP / 4 System
Controller sources assigned
in
System.
MIDI
mode
can
be selected (for
more
information, refer to
the System Global Parameters
in
the System • MIDI Section).
Mod1 Destination Parameter
Mod2 Destination Parameter
Range: Off,
01
to 34 (depending on the algorithm)
This parameter selects which algorithm parameters will be
modulated
by
the
modulation
sources.
The choice of parameters varies
depending
on
the selected algorithm.
Any
parameter
within
an
algorithm can be selected (except the algorithm name). Each algorithm
has
a choice
of
two
different
mod
destinations.
Mod1 Param Range Min
Mod1 Param Range Max
Mod2 Param Range Min
Mod2 Param Range Max
Range: 00 to
99
These four parameters set the
minimum
and
maximum
amount
(based
on
a percentage of
the
selected parameter's range) that the
Mod
Destination will
be
modulated
by
the
Mod
Source.
Inverting the amounts will also invert the
Mod
effect.
The eight different
Mod
Source controllers (two for each unit)
are
assigned
in
System-MIDI
mode
and
are explained
in
more detail
in
that
section.
Algorithm Parameters
Each of the algorithms
has
a particular set of
user
programmable
parameters associated
with
the
effect. Some of the parameters are
common
to
many
effects
and
some are specific
to
certain
effects.
In some cases, several algorithms of the same type will have
an
identical set of parameters.
In
these cases, the parameters will only
be
described once,
but
the
algorithms which
share
those
parameters will be listed
at
the beginning of the description.
Each algorithm has a
mix
and
a volume control,
modulator
parameters,
plus
a set of
parameters
which is relevant to the algorithm. All of these parameters (except the algorithm name)
are
programmable,
and
provide
much
flexibility for customizing
the
effects.
ENSONIQ DP/4 Musician's Manual 57