Akai MPCX User Manual page 110

Touch or move your finger on the gridded part of
the touchscreen. A marker will follow your finger to
indicate the current position. The X axis is the
horizontal axis, increasing in value as you move
right. The Y axis is the vertical axis, increasing in
value as you move up. Each axis is labeled with its
assigned parameter.
When an effect has a beat division parameter, the
current division will be highlighted as an entire
column.
Effects are differently colored for easy visual
distinction: beat-synchronized effects are blue,
while manually controlled effects are green.
While touching the XY pad, tap Latch in the lower-
left corner to keep the marker on the XY pad even
after you release it. The marker will remain there
until you touch another part of the XY pad or until
you tap Latch again.
Use the Setup button to show or hide the Setup
panel, which controls how the XY pad behaves.
Use the Preset field to select the effect you want
to use in XYFX Mode.
Use the Attack knob to set the length of the attack
phase of the envelope, which is triggered when you
touch the XY pad. In other words, this determines
how long it takes the effect to fully respond to your
touch.
Use the Release knob to set the length of the
release phase of the envelope, which is triggered
when you release the XY pad. In other words, this
determines how long it takes the effect to fully
deactivate after you stopping touching the XY pad.
Use the Wet/Dry knob to set the blend the original
signal (dry) and the effect signal (wet).
The X Axis and Y Axis fields show which parameters
are controlled by each axis. This varies depending
on the effect you are using.
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