ENSONIQ DP/4 Musician's Manual page 205

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Preset
Reverb
Glossary
A preset is a combination of an algorithm (or algorithms) and the associated parameter
settings. You select a preset to put different effects into the Units. Selecting a preset may
load effects into Units A, B, C, and/ or D. Presets affecting more than one unit also
contain signal routing information.
There are four types of presets in the DP / 4. They differ in how many units are affected,
and how many routing parameters are remembered. The type(s) of presets available for
selecting depends on the current Config. The four preset types are:
Preset Type:
(1 U) 1 Unit Preset
(2U) 2 Unit Preset
(4U) 4 Unit Preset
(Config) Config Preset
Affects:
Routing Parameters remembered:
One Unit None
Two Units
Connections between 2 units
Four Units
Connections between all 4 units
Four Units
All routing and configuration params
As the number of Units in a preset increases
there are more routing parameters included.
Preset Type: 1 Unit 2 Unit 4 Unit Config
Unit data
The Unit data portion of a
preset contains the algorithm
and all of its parameters
Unit data
Unit data
2U Routing
parameters
Unit data Unit data
Unit data
Unit data
Unit data Unit data
Unit data Unit data
4U Routing 4U Routing
parameters
parameters
Config
parameters
There are 400 presets in the DP / 4; 100 presets (storage locations) for each type of preset.
The first 50 presets (00 to 49) are user programmable (battery backed up RAM). Presets
50 to 99 are ROM factory presets. These groups of 50 presets are referred to as
Preset
Banks.
- - - - - - - - - Preset Type - - - - - - - - -
1 Unit 2 Unit 4 Unit Config
99
I
Preset 50
50 1 Unit 50 2 Unit 50 4 Unit 50 Config
ROM presets
ROM presets ROM presets
ROM presets
Number 49
I
00
50 1 Unit 50 2 Unit 50 4 Unit 50 Config
RAM presets RAM presets RAM presets RAM presets
The RAM presets are loaded with factory defaults when the unit is shipped and
whenever it is reinitialized. These default presets may be recalled into RAM at any time
using a special command described in the System • MIDI section.
Multiple echoes and reflections that combine to create an ambient effect. Different
devices have been used to simulate these ambiences: springs, plates, tubes, and
chambers. The DP / 4 used digital algorithms to create new envirorunents and simulate
these classic ambiences.
ENSONIQ DP/4 Musician's Manual
XIX