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Chapter 17 Vintage Electric Piano 453
Vintage Electric Piano Phaser eect
The Vintage Electric Piano Phaser eect is based on analog phaser pedals used by electric
guitarists in the 1960s and 1970s, including the subtle analog-style distortion typical of these
units. These phaser pedals were also popular among electric pianists—especially in the electric
jazz, jazz-rock, and pop styles of the 1970s.
The Phaser eect runs the original signal through a series of four lters that enhance particular
aspects of the Vintage Electric Piano frequency spectrum. This ltered signal is slightly phase
delayed and mixed with the original signal, resulting in notches in the frequency spectrum. The
notches in the phase-delayed signal are moved up and down through the frequency spectrum
by an LFO (low frequency oscillator) modulation. This results in the amplitudes of the two signals
reaching their highest and lowest points at slightly dierent times.
Note: Logic Pro oers a sophisticated Phaser eect (and other modulation plug-ins) that can be
used alongside, or to replace, the integrated Vintage Electric Piano Phaser eect.
Phaser eect parameters
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On/o button: Turns the Phaser eect on or o.
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Rate knob: Rotate to set the speed of the phasing eect. The rate is set in Hz values, or bar/beat
values when the Sync button is turned on.
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Sync button: Turn on to synchronize the Phaser eect to the host application tempo. The Rate
knob sets bar and beat values, including triplets.
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Color knob: Rotate to set the amount of Phaser output signal that is fed back into the Phaser
eect input. This changes the tonal color of the phasing eect.
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Stereo knob: Rotate to determine the relative phase shift between the left and right channels.
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At a value of 0 the eect is most intense, but not stereophonic.
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At a value of 180 the eect symmetrically rises in the left channel while falling in the right
channel, and vice versa.