Start; Alternative Start; Loop; End - Kurzweil Forte Manual

Keymap and Sample Editing
Editing Samples
The Sample Trim parameters below let you set the Start, Alternative Start, Loop, and End
points of the current sample. The right side of the top line displays the root number of the
sample. If the sample is part of a group of sample roots, you can use the Channel/Zone
buttons to scroll through each sample in the group.
Selecting these parameters and adjusting their values enables you to modify how the
sample plays back when notes are triggered. Each of these parameter points are expressed in
individual samples. For example, a one second sample at a sample rate of 44,100Hz would
have 44,100 values available to adjust for each of these parameters.

Start

The Start point determines the beginning of the current sample. You can truncate the
beginning of the sample by increasing the value of the Start parameter. You might do this to
remove silence at the beginning of a sample, or to remove some or all of the attack. You can't
decrease the Start point of samples below zero.

Alternative Start

The Alternative Start parameter lets you set a second, optional start or end point for the
current sample. The Alternative Start will be used when the Alt Switch parameter on the
KEYMAP page is set to On, or when it's set to a specific control source and that control
source is generating a value of more than +.5. (For example, if you assign MWheel as the
control source for the Alt Switch parameter, the Alternative Start will be used when the Mod
Wheel—or whatever control source you have set to send MWheel—is above its halfway
point.) The Alternative Start can be set before, after, or at the same point as the Start or End.
If you set the Alternative Start after the End, you can extend the play of looped samples.
Normally, looped samples will play through to the End, then will loop back to the Loop
point, and continue looping like this until the note is released, when they go into their
normal release. If the Alternative Start is set after the End, looped samples will loop in the
same way while notes are sustained. As soon as you release the notes, however, the samples
will play through to the Alternative Start point before going into release.

Loop

The Loop parameter sets the beginning of the looped portion of the current sample. The
Loop can be set at any point before the End, including before the Start and Alternative Start.
If you try to move it after the End, the End will move with it.

End

The End parameter sets the point at which the current sample will stop playback. Typically
you'll use this parameter to trim unwanted silence off the end of a sample, although you can
use it to shorten a sample as much as you want.
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