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EXi: EP-1 MDS Electric Piano
EP-1 Overview
New technology, classic sounds
The EP-1 provides incredible recreations of six classic tine
and reed electric pianos, along with modeled vintage effects.
Based on Korg’s Multi-Dimensional Synthesis (MDS), the
EP-1 delivers natural real-time expression without the
limitations of ordinary sample playback. For instance, you’ll
appreciate the astonishingly smooth gradation of dynamics
from pp to ff, without tell-tale split points - just like the real
instruments.
Real-time control over noise elements, including mechanical
key-off noises controlled by release velocity, gives your
performances even greater realism and detail.
The EP-1 offers a maximum of 104 voices of polyphony.
Multi-Dimensional Synthesis (MDS)
MDS is an original technology from Korg. To create the EP-
1 models, we first sample the instrument at many different
dynamic levels and pitches. Next, we separate the main
pitched sound from the hammer and key release noises, so
that you have separate control over each. Finally, we use
proprietary techniques to transform all of these elements into
an MDS sound.
The result delivers natural control over both the velocity and
time “dimensions.” Velocity becomes a continuous transition
from soft to loud and sweet to strong, without the telltale
velocity-switching of traditional sample playback. Time
becomes flexible, so that you can control the decay and
release in a natural way, without resorting to volume or filter
envelopes.
Other notes
EP-1 uses EXi fixed resources
The EP-1’s amp and effects take up a little processing power
even if you’re not playing any notes on the keyboard. This
amount is slightly less than half that of the CX-3; in
Combinations or Songs, you can use a maximum of 18 EP-
1s at once. Each EXi in each Program counts towards the
maximum; for instance, a Program with two EP-1’s counts
as two, not as one.
For more information, see “CX-3 & other EXi: Limitations
on EXi fixed resources” on page 380.
Unsupported EXi Common parameters
The EP-1 supports most of the EXi Common parameters,
except for the voice allocation options detailed below:
• Poly Legato
• Mono Mode (Normal or Use Legato Offset)
• Unison, including Number of Voices, Detune, and
Thickness
Half-Damper and Hold
Half-Damper is always active with the EP-1, regardless of
the Enable Half-Damper setting (see “Enable Half-
Damper” on page 133).
For Reed EPs, Hold is always on at G#6 and higher.
EQ
EP-1 Overview
Audio, per -voice
Modulation
Legend
Audio,
per-EXi
Audio
Attack/Release Noise Osc
Harmonic Sound Osc
EP Model Type
Insert Eect
+
Pre-Amp Tone
Vibrato
Amp/Cabinet
Panel (EP Model Type: Tine)
Panel (EP Model Type: Reed)
Insert Eect
Pre-Amp
Vibrato
Amp/Cabinet
LFO1
AMS
Mixer 1-2
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