Korg Electric Keyboard manual 112, Index, Start E End

3Select “Sustaining” as the time stretch method. Press the [F8] (“OK”) key to execute Time Stretch, or press the [F7] (“Cancel”) key 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.

4A dialog box for executing Time Stretch will appear.

5Set “Quality” to specify the desired audio quality of the sample produce by Time Stretch. The range is 0–7. Although it will depend on the sample, higher settings will produce better results. However, be aware that higher settings will also require a longer time to execute. Since you can try this as many times as you like, you should normally start with about 4, and raise or lower the setting gradually.

6Set the proportional length of the sample that will be cre- ated by Time Stretch.

•To specify the length as a ratio

Set “Ratio.” The available range is 50.00%–200.00%. If you specify 50.00%, the sample length will be halved. (The tempo will double.) If you specify 200.00%, the sam- ple length will double. (The tempo will be halved.)

•To match an existing BPM tempo value

Set “Beat” as the number of quarter-note beats. When you change “Beat,” the “Source BPM” value will be changed automatically.

“Source BPM” will indicate the playback BPM value at the original key. This BPM value is automatically calcu- lated 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 it to the correct value.

Use “New BPM” to specify the BPM value of the sample you wish to create. “Ratio” will automatically be calcu- lated from the “Source BPM” and “New BPM” values.

For example if you have a one-measure 120 BPM sample in 4/4 time, and would like to change it to 150 BPM, you would set “Beat” to 4. The “Source BPM” will be calcu- lated automatically. If the “Source BPM” is not calculated as 120 due to inaccuracies in the start address (or loop start address) or end address, adjust “Source BPM” to the correct value of 120.

Next, set “New BPM” to 150. The “Ratio” will be calcu- lated automatically.

It is not possible to make settings that would cause “Source BPM” or “New BPM” to exceed the range of 40–480.

It is not possible to make settings that would cause “Ratio” to exceed the range of 50.00–200.00.

Depending on the sample, the length may not be exactly as you specify, due to limitations in processing accuracy.

7To execute the Time Stretch operation, press the [F8] (“OK”) key. To cancel without executing, press the [F7] (“Cancel”) key.

When you press the [F8] (“OK”) key, the Time Stretch dialog box will appear.

8Audition the sample that was created by Time Stretch. The sample before being time-stretched is assigned to the note number C2 of the keyboard, and the sample that was time-stretched is assigned to note number C#2. You can change the “Index” to check the waveform.

Index [Source(C2), Result(C#2)]:

Select the index for the sample whose waveform you wish to display.

If you select Source, the original waveform before time- stretching will be selected.

If you select Result, the time-stretched sample will be selected.

To select an index, hold down the [ENTER] key and play a note on the keyboard. The index that includes the note you played will be selected.

Sample waveform display: This shows the waveform of

the selected sample. As in 3-1: Loop Edit, Edit2 page, “S (Start), “LpS (Loop Start),” and “E (End)” addresses are shown by a solid line.

In the case of a stereo sample, you can press the [F3] (“L/R”) key to switch the display between the L channel and R channel of the sample data. (☞ 2.1–2c)

S(Start): E (End):

Specifies the start address and end address of the sample for the currently selected index.

When you execute Time Stretch, the addresses will be specified automatically, but the playback may be slightly skewed due to inaccuracies in the end address, etc. If this occurs, you can correct the addresses manually.

When you change the start address, the loop start address will also be changed simultaneously. If you wish to independently adjust the start address and loop start address, save the data in step 0, and then make settings in the 3.1: Loop Edit Edit2 page.

To audition the sound in the specified range, play the keyboard or press the [AUDITION] key. When you press the [AUDITION] key, the sample in the range specified by “S (Start)” and “E (End)” will sound at the original key.

Zero (Use Zero): (☞ 2.1–2b)

L/R: (☞ 2.1–2c)

ZOOM: When you press the [F8] (“Zoom”) button the zoom buttons will appear, allowing you to zoom-in or zoom-out vertically or horizontally on the sample wave- form display (☞ 2.1–2d). Press the [F8] (“Zoom”) key once again to return to the previous display.

9If you press the [F5] (“Strch”) key, the Time Stretch dialog box will appear, and you can re-do the time stretch once again. Execute Time Stretch as described in step 6.

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