OB
5
5.1 VIBRATO & CHORUS
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5. THE EFFECTS SECTION
The VIBRATO & CHORUS section of the front panel allows
Vibrato and Chorus effects to be added to the OB5’s sound.
Vibrato modulates the tuning of the signal in cyclic mode, while
the Chorus is the sum of the direct and modulated sound (so
that the amplitude of the signal is also modulated).
The six-position knob can be used to select one of the three
Vibrato effects (V1-V2-V3) or the three Chorus effects (C1-C2-C3), which differ in the
depth and speed of modulation of the signal provided by the Drawbars.
The [UPPER] and [LOWER] buttons can be used to assign the selected effect to the
upper and lower manual respectively. The LED on the key concerned illuminates to indicate
that the assignment has been made
The selected effect can be assigned to both manuals simultaneously, while if assignment
to both manuals is disabled, it will not be possible to hear any effect.
The display can also be used to adjust two fundamental parameters of the Vibrato and
Chorus effects.
When the [EFFECTS] button on the left panel is pressed, the display will show the
EFFECT
menu, for the settings relating to the effects the OB5 makes available:
When the
[VIBRATO]
field is selected using the [ENTER] or [EFFECTS] buttons, the
display will change to:
This video page contains the
VibratoSpeed
field, which can be used to vary the
modulation speed, or the speed with which the sound will “vibrate” and the
VibratoDepth
field, set to regulate the modulation depth, or the amount by which the sound will be
modulated. The adjustments made by means of these parameters apply to all six effects
(three Vibrato and three Chorus), and operate within the modulation speed and depth
range affected by each individual effect. This means that if
VibratoSpeed:100
is set,
the V1 effect will modulate the sound at the maximum speed of the modulant of the effect
concerned, while the V2 effect will modulate the sound not at the same speed, but at the
