10-1
The Vibrato Editor
The programmable vibrato feature in the K150X allows you to create a variety of frequency-shift effects.
You can define one set of Vibrato parameters for each Program. Whether or not these Vibrato parameters are active for any
individual layer in that program is controlled by the Vibrato Enable switch for each layer which can be set to Off, Fixed, M-
Wheel, or K-Press (the default is Off). To fully understand the capabilities of Vibrato mode, see the description of the
various vibrato enabling options in Layer Editing.
The Vibrato parameters being modified are those for the currently active program. In order to hear the effects of your
Vibrato editing, turn on one of the active modes (Fixed, K-Press, or M-Wheel) of the Vibrato Enable switch for the layer or
layers you want to add Vibrato to (see Layer Editing).
Using the Vibrato Editor
Select VIBRATO editing by pressing EDIT DECR (The abbreviation VIBR is printed above the DECR key on the button-
pad).
The parameters shown in Table 10-1 can be edited. One will appear in the display; the others can be selected by using NEXT
and PREV.
Table 10-1
Vibrato Editor Parameters
Display Reads
Parameter
Available Values *
(use INCR and DECR)
What it Does
.TRIANGLE
triangle wave
Triangle
Selects the base waveform used for modification.
.SQUARE
square wave
Square
.DEPTH
Depth of Oscillation
0-3600 C
Adjusts the range in which the sound will vary.
.RATE
Oscillation Rate
0-49.9 Hz
Adjusts the frequency of oscillation.
.SYMMETRY
Symmetry of Waveform
±10
Adjusts the symmetry of the waveform.
.DELAY
Vibrato Delay
0-1000ms
Specifies a delay before vibrato reaches full intensity.
* If the value is numeric, you can also enter the value directly with the right button-pad and press ENTR.
See the sections on each parameter later in this chapter.
The Vibrato parameters work in conjunction with each other. For instance, until an audible value is set for .RATE, changes
to the other parameters will not be audible. Likewise, if .DEPTH is set to 0C, no audible oscillation occurs because the note
doesn’t change.
Remember that you can interactively listen to your modifications to the Vibrato editor. To do this, at least one layer in the
region of the keyboard that you’re playing must have its Vibrato Enable switch enabled (on, delayed, or press (see Layer
Editing).
When you select values using the numeric button pad and press ENTR, or change values using INCR and DECR, the changes
in sound can be heard by playing the keyboard. Also note that you can press UNDO to toggle between the current value and
the previous value, or CLR to reset a value to its default value.
Triangle or Square
When the display shows .TRIANGLE or .SQUARE, you can select the waveform used by Vibrato. With .TRIANGLE, the
sound will "ease" from the played note to the limit of oscillation specified with the .DEPTH parameter, and back again. With
.SQUARE, the sound will "jump" between the limits of oscillation. The two waveforms are shown in Figure 10-1.
