The Modulation Delay is based on the same principles as the Flanger and Chorus effects,
but you can set the delay time, allowing both chorus and flanging effects to be generated.
It can also be used without modulation to create resonator or doubling effects. The
modulation section consists of two LFOs with variable frequencies.
Although rich, combined flanging and chorus effects are possible, the Modulation Delay
is capable of producing some extreme modulation effects. These include emulations of
tape speed fluctuations and metallic, robot-like modulations of incoming signals.
• Feedback slider and field: Determines the amount of the effect signal that is routed back
to the input. If you’re going for radical flanging effects, enter a high Feedback value. If
simple doubling is what you’re after, don’t use any feedback. Negative values invert
the phase of the feedback signal, resulting in more chaotic effects.
• Flanger-Chorus knob and field: Sets the basic delay time. Set to the far left position to
create flanger effects, to the center for chorus effects, and to the far right to hear clearly
• De-Warble button: Ensures that the pitch of the modulated signal remains constant.
• Const Mod. (Constant Modulation) button: Ensures that the modulation width remains
constant, regardless of the modulation rate.
Note: When Const Mod is enabled, higher modulation frequencies reduce the
• Mod. Intensity slider and field: Sets the modulation amount.
• LFO Mix slider and fields: Determines the balance between the two LFOs.
• LFO 1 and LFO 2 Rate knobs and fields: The left knob sets the modulation rate for the
left stereo channel, and the right knob sets the modulation rate for the right stereo
In surround instances, the center channel is assigned the middle value of the left and
right LFO Rate knobs. The other channels are assigned values between the left and
right LFO rates.
Note: The right LFO Rate knob is available only in stereo and surround instances, and
it can be set separately only if the Left Right Link button is not enabled.
• LFO Left Right Link button: Available only in stereo and surround instances, it links the
modulation rates of the left and right stereo channels. Adjustment of either Rate knob
will affect the other channels.
• LFO Phase knob and field: Available only in stereo and surround instances, it controls
the phase relationship between individual channel modulations.
• At 0°, the extreme values of the modulation are achieved simultaneously for all
• 180° or −180° is equal to the greatest possible distance between the modulation
phases of the channels.
Note: The LFO Phase parameter is available only if the LFO Left Right Link button is
• Distribution pop-up menu: Available only in surround instances, it defines how the phase
offsets between the individual channels are distributed in the surround field. You can
choose from “circular,” “left
rear,” “random,” and “new random”
Note: When you load a setting that uses the “random” option, the saved phase offset
value is recalled. If you want to randomize the phase setting again, choose “new random”
from the Distribution pop-up menu.
• Volume Mod(ulation) slider and field: Determines the impact that LFO modulation has
on the amplitude of the effect signal.
• Output Mix slider and field: Determines the balance between dry and wet signals.
• All Pass button (Extended Parameters area): Introduces an additional allpass filter into
the signal path. An allpass filter shifts the phase angle of a signal, influencing its stereo
• All Pass Left and All Pass Right sliders and fields (Extended Parameters area): Determines
the frequency at which the phase shift crosses 90° (the half-way point of the total 180°)
for each of the stereo channels. In surround instances, the other channels are
automatically assigned values that fall between the two settings.