Yamaha A4000 Owner's Manual page 54

ESSENTIAL PROCEDURES
Wave This parameter selects the waveform used for LFO modulation, Your choices are "Saw" (saw-
tooth), "Triangl" (triangular: the usual substitute for a sine wave), "Square," and "S/H" (sam-
ple-and-hold: essentially a series of random levels switched in square-wave fashion).
Speed The function of this parameter is fairly obvious - it sets the speed of LFO modulation.
Delay When set to "0" LFO modulation will begin instantaneously when a note is played. But as you
increase this value a delay will occur between the instant the note is played and the start of
LFO modulation. Higher values produce longer delays.
KeyOnSync The "KeyOnSync" parameter determines whether the start of LFO modulation is synchro-
nized to the beginning of each note. If "on" modulation will always begin at the same point in
the LFO waveform whenever a note is played. When "off" modulation will begin at a random
point in the LFO waveform.
4.
Set the Appropriate Modulation Depth Parameters
Use Knob 1 to highlight the second function line on the display ("Depth"), and use Knobs 3, 4, and 5
to set the filter cutoff, pitch modulation, and/or amplitude modulation depth as required. Modulation
can be applied to a single destination, or any two or three simultaneously.
CutoffMod Sets the amount of LFO modulation applied to filter cutoff. The final sound will be determined
somewhat by the way the filter is set up (page 133), but filter cutoff modulation will generally
produce a wah-wah type effect. Higher values produce deeper modulation.
PitchMod Sets the amount of LFO modulation applied to pitch. The result will be a vibrato type effect.
Higher values produce deeper modulation.
AmpMod Sets the amount of LFO modulation applied to amplitude. The result will be a tremolo type
effect. Higher values produce deeper modulation.
• The "PhaseInvert" parameters on the bottom function line can be used to invert the phase of the
LFO waveform for the corresponding modulation destinations. See page 144 for details.
54
Chapter 2 Sampler Basics & Essential Procedures
• A5000/A4000