KORG X50 - Manual (Page 50)

Playing and Editing Programs
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2. Rotate the desired knob to control the sound,
etc. See the explanations that follow.
A-mode controls
In A-mode, knobs [1]–[4] will control/edit the fol-
lowing functions.
Note: Placing the knobs in the center (12 o’clock)
position will produce the values specified by the
program parameters.
Knob [1]: LPF CUTOFF
Adjust the cutoff frequency of the low pass filter.
When you adjust the cutoff frequency of the filter,
the brightness of the sound will change. The effect
will depend on the settings of the program param-
eters, but normally, rotating the knob toward the
left will darken the sound, and rotating it toward
the right will brighten it.
Knob [2]: RESONANCE/HPF
Adjust the resonance level of a low pass filter or
the cutoff frequency of a high pass filter.
The content that is controlled will depend on the
filter type specified by the program.
By adjusting the filter resonance level, you can
increase or decrease the resonance level to add a
unique character to the sound.
Adjusting the cutoff frequency of the high-pass fil-
ter will modify the thickness of the sound from
which the low frequency range has been filtered
out.
Knob [3]: EG-INTENSITY
Adjust the filter EG intensity (the depth at which
the filter EG is applied).
Rotating the knob will affect the depth of the filter
EG. Normally, rotating the knob toward the left
will make the filter EG apply less deeply, and
rotating it toward the right will make the filter EG
apply more deeply. Since the filter EG will operate
based on the cutoff frequency of the filter, knobs
[1] and [3] will work together to control the tonal
changes produced by the filter.
Knob [4]: EG-RELEASE
Adjust the EG release times of the filter and amp.
This will determine the time from note-off until
the sound disappears.
When you adjust the knob, the release times of the
filter EG and the amp EG will change. Normally,
rotating the knob toward the left will shorten the
release time, and rotating it toward the right will
lengthen the release time.
[SELECT] button
Knobs [1]–[4]
LPF
Level
High
Frequency
Cutoff
frequency
Low
LPF HPF
Level
Cutoff
frequency
Level
Time
Level
Time
Attack Time
Decay Time Slope Time Release Time
Attack Level
Start Level
Sustain Level
Break Level
note-on
note-off
Release Level