Kurzweil PC3LE Musician's Manual page 74

Program Mode
The Program Editor
Alternative Switch (AltControl and AltMethod)
Many, but not all, PC3LE sample roots have been pre‐assigned a carefully chosen alternate
sample start point that can be selected using the Alternate Switch feature (AltControl and
AltMethod parameters). This feature allows you to control the sample playback start/end time
triggered by any control source. (The alternate sample start point can be adjusted by editing a
sample, see Editing Samples on page 12‐9 and The TRIM Page on page 12‐12 for details.)
Use the AltControl parameter to specify a control source that will cause the sample to begin or
end at the Alt point. Then use the AltMethod parameter to choose between switched and
continuous calculation of the Alt point. If the value of AltMethod is Switched, the PC3LE will
use the Alt point when the relevant control source is at a value greater than 64 at Note Start. If
AltMethod is Continuous, the Alt point will vary depending on the value of the relevant control
source at Note Start.
As an example, suppose you're working with a flute keymap and wish to control the amount of
chiff heard at the beginning of the sound. On the KEYMAP page in the Program Editor, set
AltControl to MWheel. Now the Mod Wheel controls how much of the initial sample attack is
used. If you set AltMethod to Switched and move the Mod Wheel at least half‐way up, at Note
Start the sample will begin at the pre‐set alternate start point (in this case, slightly past the initial
chiff). If you set the AltMethod to Continuous, the PC3LE will interpolate the sample's starting
point based on the position of the Mod Wheel. If the Mod Wheel is 75% of the way up at Note
Start. the sample will begin 75% of the way between normal and alternate start points.
Emulating Legato Play
If you place the Alt point after the initial attack transients of the sample, then you can use the Alt
Switch to emulate legato playing in an acoustic instrument. As an example, set Keymap to
14 Flute. Now set the AltControl parameter to Chan St (Channel State). Now if you play notes
separately, the initial breathy chiff will be heard. But if you play the notes legato (connecting
them smoothly), the Alt point is used and you do not hear the chiff. This is because the Chan St
is turned on as long as any note is being held. Most of the PC3LE's ROM samples have their Alt
points set for purposes of legato play. In most cases the difference in attacks is subtle, but for
some sounds, like drums, the difference can be more noticeable.
The LAYER Page
Press the LAYER soft button to call up the LAYER page. Here you'll set a number of parameters
that affect the current layer's keyboard range, attack and release characteristics, and response to
various controls.
Parameter
Low Key
High Key
6-22
Range of Values
C -1 to G 9
C -1 to G 9
Default
C 0
C 8