Akai MPC User Manual page 319

You can now retune a sample to the tempo of its current sequence.
To tune a sample to that of its current sequence:
1. Click Sample Edit to enter Sample Edit Mode.
2. Click From BPM in the Process section to open the Calculate
BPM window.
3. Click and drag the Number Of Beats field up or down to
match the number of beats in the desired Sequence.
Alternatively, double-click the field and type in a number.
4. Click Match. The Tempo field will adjust to match that your
current Sequence's tempo, and the Tune field will adjust
automatically. The sample is now tuned to the current Sequence.
5. Click Close to exit the window.
Hardware: To tune a sample to that of its current sequence:
1. In Trim Mode, use the Cursor Buttons to select Tune.
2. Press Window to open the Calculate BPM window.
3. Use the Cursor Buttons to select the Number Of Beats field and use the Data Dial or –/+ buttons
to adjust the value to match the number of beats in the desired Sequence. Alternatively, use the
numeric keypad to enter a value.
4. Press F3 (Match). The Tempo field will adjust to match that your current Sequence's tempo, and the
Tune field will adjust automatically. The sample is now tuned to the current Sequence.
5. Click F4 (Close) to exit the window.
The Calculate BPM window in Sample Edit Mode in the MPC hardware display.
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