Akai MPCX User Manual page 151

Important: The parameters on the second, third, and fourth Samples tabs work in conjunction with Chop Mode (in
Sample Edit Mode). Here's how it works:
When working in Sample Edit Mode and using Chop Mode to divide a sample into slices for your pads, you can
convert a slice using Non-Destructive Slice or Pad Parameters.
A Non-Destructive Slice will let its pad to refer to that slice when you press it; the original sample remains intact and
each slice marker is like a "bookmark" for a pad. In Program Edit Mode, you'll see that the pad/layer to which it's
assigned has its Slice drop-down menu set to the corresponding slice number in the original sample. Playing that
pad will cause it to refer to that slice marker like a "bookmark" instead of creating an entirely new sample of that
slice. This means that you no longer have to clutter your Project with a new sample for every slice (though you can
still use this earlier method, if you prefer).
A slice converted using Pad Parameters is very similar to a non-destructive slice described above. The difference is
that in Program Edit Mode, the pads/layers they're assigned to have their Slice drop-down menus set to Pad (instead
of the slice number), and the Pad Start and Pad End points will correspond to the slice markers in the original sample.
Use the Slice field to select what part/parts of the sample
will play:
All: The entire sample will play.
Pad: The sample will play from the Pad Start position
to the Pad End position, described below. This also
lets you activate Pad
Slice 1, 2, 3, etc.: If you have sliced the sample in Chop
Mode, you can select which slice will play when you
trigger the pad.
Use the Direction selector to select in which direction the
sample will play:
Fwd: The sample will play in the normal forward direction.
Rev: The sample will play in reverse.
Use the Offset slider to determine a time offset for the
sample's playback.
Positive values (right of center): When the pad is played,
playback will start immediately but at a later point in the
sample specified by the offset value.
Negative values (left of center): When the pad is played,
playback will be delayed by the amount specified by the
offset value.
Use the Pad Start slider to determine the position (in
samples) where the pad's playback will start. The minimum
value is 0, and the maximum value is the Pad End value.
Note: When Loop Lock is on, the loop position (as
determined in the fourth Samples tab) is the same as the
pad start. When off, the loop position is independent from
the pad start.
Use the Pad End slider to determine the position (in
samples) where the pad's playback will stop. The minimum
value is the Pad Start value, and the maximum value is the
sample's total length (in samples).
Loop.
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