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ES2 integrated effects processor in Logic Pro for iPad

ES2 is equipped with an integrated effects processor. Any changes to the parameters of these effects are saved with each sound setting.

Figure. Effect Processing section, showing Distortion parameters, and the Intensity and Rate controls shared by the Chorus, Flanger and Phaser effects.

You can activate only two effects at the same time.

  • The Distortion circuit.

  • Your choice of a Chorus, Flanger, or Phaser effect. These effects share the same control knobs—Intensity and Speed.

    A chorus effect is based on a delay line, the output of which is mixed with the original, dry signal. The short delay time is modulated periodically, resulting in pitch deviations. The modulated deviations, in conjunction with the original signal pitch, produce the chorus effect.

    A flanger works in a similar fashion to a chorus, but with even shorter delay times. The output signal is fed back into the input of the delay line. This feedback results in the creation of harmonic resonances that wander cyclically through the spectrum, giving the signal a “metallic” sound.

    A phaser mixes a delayed and an original signal. The delayed element is derived from an allpass filter, which applies a frequency-dependent delay to the signal. This is expressed as a phase angle. The effect is based on a comb filter, which is basically an array of inharmonic notches—rather than resonances, as with the flanger—that also wanders through the frequency spectrum. This delivers a “sweeping” sound.

Distortion effect parameters

  • Gain knob and field: Set the amount of distortion. Turn this knob to zero to disable the effect.

  • Tone knob and field: Control the treble portion of the distortion signal.

  • Type buttons: Choose the distortion type.

    • Soft button: Activate the Distortion effect Soft mode. The distortion circuit sounds somewhat like a tube overdrive.

    • Hard button: Activate the Distortion effect Hard mode. The distortion effect sounds like a fully transistorized fuzz box.

Modulation FX parameters

  • Intensity knob and field: Set the depth of the effect. Turn this knob to zero to turn off the effect.

    • When the Chorus type is active: Set how rich the modulation is.

    • When the Flanger type is active: Set how “cutting” the modulation is.

    • When the Phaser type is active: Set the depth of the “sweeping” effect—the width of the modulation.

  • Rate knob and field: Set the modulation rate.

  • Type buttons: Choose the effects processor.

Download this guide: PDF

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