Korg NAUTILUS Series, Parameter Manual, Page: 637 / 961

SAMPLING: Page Menu Commands Time Stretch
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Be aware that if you exit Time Stretch without using the
Save button then press the OK button to save the sample,
the sample(s) you created will be lost.
Time Stretch requires vacant samples, multisamples, and
relative parameters in order to execute. Before you
execute, make sure that there is sufficient free space. If
there is not, an error will occur.
To use Time Stretch (Slice)
1. Select the sample that you wish to time-stretch using
the Slice method.
2. Select the Time Stretch command from the Page
Menu to access this dialog box, where you can select
the desired time stretch method.
3. Use the radio buttons to select Slice. Then press the
OK button to execute, or the Cancel button to cancel
without executing.
If the L and R of a stereo sample are different
in length, blank data will automatically be added to the
end of the shorter sample so that it matches the longer
side.
4. A dialog box for executing Time Stretch will appear.
5. Specify the number of quarter note beats and tempo
of the currently selected sample.
If you already know the BPM value, set Source BPM . If
you do not know the BPM, setting Beat will cause the
BPM to be calculated automatically. The settings here are
also used as the reference values when detecting the
attacks at which the sample is divided.
Beat: Specify the number of quarter note beats. When
you change Beat , the Source BPM will indicate the BPM
value for playback at the original key. This BPM value is
automatically calculated according to the length from the
start address to the end address (if loop is off) or from the
loop start address to the end address (if loop is on). If you
already know the BPM value and the calculated value is
incorrect, change
Source BPM to the correct value.
For example if you have a one-measure 120 BPM sample
in 4/4 time, you would set
Beat to 4. The Source BPM
will be calculated automatically. If the Source BPM is
not calculated as 120.00 due to inaccuracies in the start
address (or loop start address) or end address, adjust
Source BPM to the correct value of 120.00.
Source BPM: Specify the tempo at the original key of
the original waveform.
Source BPM cannot be set or displayed outside the range
of 40.00–480.00.
6. Set the proportional length of the sample that will be
created by Time Stretch.
• To specify the length as a ratio:
Set the Ratio to the desired value. The available range is
50.00%–200.00%.
50.00% reduces the sample to half of its original length,
doubling the tempo.
200.00% increases the sample to double its original
length, slowing the tempo to half-speed.
The tempo of the resulting sample will be calculated
automatically based on the
Ratio and Source BPM , and
displayed in New BPM .
• To match a desired BPM tempo value:
Set New BPM to the desired BPM value of the sample
that will be created. Ratio will automatically be
calculated from the Source BPM and New BPM values.
It is not possible to set or display New BPM outside the
range of 40.00–480.00. It is not possible to set or display
Ratio outside the range of 50.00–200.00.
7. To execute Time Stretch, press the OK button. To
cancel without executing, press the Cancel button.
When you press the OK button, the attacks will be
detected and the sample will be divided automatically,
and time stretch will be performed.
The Time Stretch dialog box will appear.
8. Audition the results that were created by Time
Stretch.
The sample before being time-stretched is assigned to the
C2 note of the keyboard. The time-stretched sample is
assigned to C#2. Sliced (divided) samples will be
assigned consecutively upward, starting from D2 on the
keyboard.