Akai MPC TOUCH User Manual page 163

If you set the Convert To field to Patched phrase, this will
create a new sample that will play based on the tempo of your
Sequence, and places it in the current project. The patched
phrase will have the same name as the original sample but
appended with pp and will use a different icon when viewing
your project information.
Use the Number of Bars field to set how many bars long the
patched phrase is meant to be.
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