Akai MPC X User Manual page 150

The Pitch Quantize function forces the pitches of note
events into a specific scale.
To select the desired root note of the scale, use the
Root Note field.
To select a type of scale, use the Scale field.
To determine which note events will be quantized,
tap the Only apply to selected events checkbox.
When on, only the currently selected note events
will be quantized.
When off, all pitches in the current track will be
quantized.
To set lowest-possible and highest-possible pitches
where the quantized note events will be placed, use
the Start Note and End Note fields (respectively). If a
note event is originally outside of this range, it will be
forced to the nearest pitch (within the scale) inside the
range.
To continue and quantize the note events, tap Do It.
To cancel, tap Close.
The Humanize function applies randomization to the
timing, length, and/or velocity of MIDI note events.
To select whether or not humanization will be applied
to the timing of MIDI events, tap the Humanize Time
checkbox.
To select the maximum number of pulses by which
the timing of an event will be adjusted, use the
Amount (Pulses) slider.
To set how dramatically the humanization effect is
applied to the timing, use the Eagerness slider.
Negative values correspond to playing "ahead of the
beat" while positive values correspond to playing
"behind the beat."
To set whether or not humanization will be applied
to the duration of MIDI note events, tap the
Humanize Note Length checkbox.
To set how dramatically the humanization effect is
applied to note lengths, use the Length (%) slider.
To set whether or not humanization will be applied
to the velocities of MIDI note events, tap the
Humanize Velocity checkbox.
To set how dramatically the humanization effect is
applied to note velocities, use the Strength (%) slider.
To determine which
humanization values, tap the Only Apply to
Selected Events checkbox.
When on, just the currently selected notes will be
humanized.
When off, all notes in the track will be humanized.
To apply humanization and keep this window open,
tap Apply.
To apply humanization and close the window, tap
Do It.
To close the window without making any changes,
tap Close.
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