Kurzweil K2500RS, Musician'S Manual

Page: 57 / 530

Program Mode and the Program Editor
The Program Editor—Pages
6-15
Stereo
YouÕll use this parameter when youÕre working with stereo samples. When you use the
optional stereo piano program or load stereo samples from disk, the K2vx views both sides of
the sample as a single sample object. When you select a stereo sample as the value for the
Sample parameter, youÕll see the letter ÒSÓ as part of the sample name (for example,
Ò204*StratoBlaster E3 SÓ.
When you set this parameter to On, the KEYMAP page changes slightly:
EditProg:KEYMAP||||||||||||<>Layer:1/1||
KeyMap1: 1|Grand|Piano||||||| ||||||||||||
KeyMap2:None|||||||||||||||||Stereo:On||
Xpose|:0ST||||||||TimbreShift|:0ST||||||
KeyTrk:100ct/key||AltAttackCtl:OFF||||||
VelTrk:0ct||||||||PlayBackMode:Normal|||
|||||| | |||||| | |||||| | |||||| | |||||| | |||||
<more| | ALG||| | LAYER| | KEYMAP | PITCH| | more>
An additional Keymap parameter appears. The two keymap parameters are distinguished as
Keymap 1 and Keymap 2. The KEYMAP page parameters will affect both keymaps. When the
Stereo parameter is on, the OUTPUT page for the current layer will show an additional pair of
Pan parameters.
To get the samples to play together, set the Stereo parameter to On, and select the keymap as
the value for
both the Keymap 1 and Keymap 2 parameters. The K2vx automatically uses the
left side for Keymap 1, and the right side for Keymap 2. Then go to the OUTPUT page and set
the panning for each sample as desired. Keep in mind that using stereo keymaps reduces the
polyphony of the program. For example, if you had a two-layer program with stereo keymaps
in each layer, each note you play would use 4 of your 48 voices, allowing a total of 12 notes
before all the voices have been used.
This parameter is unnecessary if youÕre not using stereo samples, and should be set to Off in
that case.
Timbre Shift
This parameter works only on multi-sample keymaps, and changes the root selection for each
key you play. With this parameter you can radically alter the current layerÕs timbre (basic
sound characteristics). The nature of the change depends on the timbre itself, so this parameter
calls for experimentation. Basically, timbre shifting changes a noteÕs timbre by imposing
different harmonic qualities onto the note. A timbre-shifted note retains its original pitch, but
its harmonics are those of the same timbre at a higher or lower pitch. Positive values for this
parameter tend to brighten a sound, while negative values darken.
HereÕs an example. If you shift the timbre up 4 semitones, then playing C 4 will result in the
pitch C 4, but will actually play the sample normally assigned to G# 3, and shift its pitch up 4
semitones. This will increase the playback rate of the sample, so although the pitch remains
normal, the timbre is brighter. YouÕd get the same effect by setting the Xpose parameter on the
Keymap page to -4 semitones, then setting the Adjust on the PITCH page to + 4 semitones. For
multi-sample layers with narrow key ranges, large amounts of timbre shifting will cause
different sample roots to be played back.
Alternative Switch (AltSwitch)
You can assign a control source to change the sound by using an alternate start point or
alternate end point for the current keymap. Whether or not it is an alternate start or alternate
end depends on the position of the Alt parameter for the sample (set in the Sample Editor).