Modulation Delay in Logic Pro for iPad

Modulation Delay is based on the same principles as 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.

To add Modulation Delay to your project, choose Modulation > Modulation Delay in a channel strip Audio Effect plug-in menu or the Plug-ins area. See Intro to plug-ins. Also see Add, replace, reorder, and remove plug-ins in the Plug-ins area and Work with plug-ins in the Mixer.

Delay and filter parameters

Mod Intensity knob and field: Set the modulation amount.
Flanger/Chorus knob and field: Set 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 discernible delays.
Feedback knob and field: Set the amount of effect signal routed back to the input. Use a high Feedback value for strong modulations. If you want to double the signal, don’t use Feedback. Negative values invert the phase of the feedback signal, resulting in more chaotic effects.
De-Warble button: Turn on to make sure the pitch of the modulated signal remains constant.
Constant Mod button: Turn on to make sure the modulation width remains constant, regardless of the modulation rate.
Note: When Constant Mod is turned on, higher modulation frequencies reduce the modulation width.
D-Mode button: Turn on to introduce a spatial filtering effect that resembles a well-known vintage processor.
Filter On/Off button: Turn on to introduce an additional allpass filter into the signal path. This filter shifts the phase angle of a signal, influencing its stereo image.
Low/High Cut sliders and fields: Set the frequency at which the phase shift crosses 90°—the halfway point of the total 180°—for each of the stereo channels.

Modulation and output parameters

Rate LFO 1/2 L knobs and fields: Set the modulation rate for the left channel independently for each LFO.
Rate LFO 1/2 R knobs and fields: Set the modulation rate for the right channel independently for each LFO.
Note: The right LFO Rate knob is available only in stereo instances, and it can be set separately only if the (Stereo) Free button is turned on.
LFO Phase knob and field: Control the phase relationship between individual channel modulations. Available only in stereo instances.
- At 0°, the extreme values of the modulation are achieved simultaneously for both channels.
- At 180° or −180°, you achieve the greatest possible distance between the modulation phases of both channels.
Note: The LFO Phase parameter is available for use only if the (Stereo) Link button is active.
Stereo buttons: Tap Free to independently set the LFO Rate for each channel. Tap Link to link the modulation rates of the left and right stereo channels. Adjustment of either the Rate LFO 1/2 L or R knob affects the other channel when linked.
LFO Mix slider and field: Determine the balance between the two LFOs.
Volume Mod knob and field: Determine the impact of LFO modulation on the amplitude of the effect signal.
Output Mix control and field: Set the balance between dry and wet signals.

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Logic Pro User Guide for iPad

Modulation Delay in Logic Pro for iPad

Delay and filter parameters

Modulation and output parameters