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55
Chapter 2. Creating Your Own Sounds
Chapter 2
[ENV DEPTH]
Here’s how you can adjust the depth of the Pitch Envelope. The
more the slider is moved upwards, the greater the change is. Moving
the slider below the center position inverts the waveform, and the
change in the opposite direction increases. At the center position, the
pitch envelope does not create any change in pitch.
fig.02-11.e
Changing the Pulse Width of a
Square Wave Periodically (PWM)
[PWM (LFO 2)]
Adding an LFO to the pulse width (of a square wave), which results
in a cyclic change in the square wave’s pulse width, is called Pulse
Width Modulation (PWM). The amount of PWM applied is set with
[PWM (LFO 2)]. The change in the pulse width increases as the slider
is moved upwards, resulting in a tone with greater breadth that
seems to spread out. The speed of modulation is set by turning the
“LFO 2” [RATE] knob (p. 60).
• The PWM effect is activated when “ ” (PWM wave) is
selected with [WAVE] and LFO 2 is on.
• The PWM effect is not available for Patches using the Ring
Modulator function (p. 55) or the Oscillator Sync function (p. 55).
For more detailed information about setting LFO 2, refer to
“Modulating the Sound (LFO 1 & 2)” (p. 59).
Creating a Metallic Sound
(OSC 1X2 RING)—Ring Modulator
[OSC 1X2 RING]
This is the Ring Modulator function. Press the button, causing the
indicator to light, to turn on the Ring Modulator; this changes the
sound, producing a metallic tone.
• The ring modulation effect is only applied to OSC 1; the OSC 2
tone is not changed. If the ring modulator effect is not
sufficiently evident, raise [BALANCE] (toward the OSC 1 end).
Moving [BALANCE] allows you to alter the ratio of the OSC 1
sound (to which ring modulation is applied), and the normal
OSC 2 sound.
• Using [PITCH COARSE] or other controls to create different
pitches for OSC 1 and OSC 2 makes it easier to produce the ring
modulator effect.
The PWM function (p. 55) and Suboscillator function (p. 54)
cannot be used at the same time a Patch using Ring Modulator is
active.
Creating an Assertive Solo Sound
(OSC 1X2 SYNC)—Oscillator Sync
[OSC 1X2 SYNC]
Press the button, causing the indicator to blink, to turn on the
Oscillator Sync function; this produces a complex tone containing
numerous harmonics. This is effective when the OSC 1 pitch is
higher than the OSC 2 pitch.
Time
Pitch
What is a Ring Modulator?
The Ring Modulator combines the waves from OSC 1 and OSC
2 (producing the sum and difference at the output), to create a
“cross” of the two signals producing tones with numerous
harmonics (non-integer harmonics) not included in either of the
original waveforms.
As the pitch difference between the two waveforms changes the
harmonic structure, the result will be an unpitched metallic
sound. This function is suitable for creating metallic sounds
such as bells.
fig.Ring Mod