Kurzweil K2500 - PERFORMANCE GUIDE REV F PART NUMBER 910251 CHAP 6 Manual page 35

gives you an easy way to increase the vibrato rate in realtime, as you can on many acoustic
instruments.
LFO Shape
The shape of the LFO waveform determines the nature of its effect on the signal its modulating.
There are diagrams of each LFO shape in the Reference Guide; these will give you an idea of how
each LFO shape affects the signal. An easy way to check the effects of the different LFO shapes
is to set LFO1 as the value for the Src1 parameter on the PITCH page, and set the Depth for Src1
to 400 cents or so. Then go to the LFO page, set the Min and Max rates for LFO1 at 0.00 Hz and
4.00 Hz or so, and set the Rate control to MWheel. Now play your MIDI controller and you'll
hear the LFO's rate change when you move its Mod Wheel. Select different LFO Shapes and
check out the effect on the pitch.
LFO Phase
Use this parameter to determine the starting point of the LFO's cycle. One complete cycle of the
LFO is 360 degrees. 0 degrees phase corresponds to a control signal value of 0, becoming
positive. Each 90-degree increment in the phase represents a quarter-cycle of the LFO.
When an LFO is local, the phase parameter gives you control over the starting point of the LFO
for each note (for example, you could make sure every vibrato started below the pitch you
played instead of at the pitch you played). The LFO's phase also affects global LFOs, although
it's often indistinguishable, since global LFOs start running as soon as the program containing
them is selected, even if you don't play any notes.
Program Mode and the Program Editor
Program Editor—LFO Page
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