Electro Harmonix Pitch Fork manual

Pitch Fork

POLYPHONIC PITCH-SHIFTER/HARMONY PEDAL

Congratulations on your purchase of the Electro-Harmonix Pitch Fork, a compact,

battery powered, polyphonic pitch-shifter/harmony pedal. The Pitch Fork transposes

the pitch of your instrument over a range of up to +/- 3 octaves. Three different

available pitch-shifting modes allow the pitch to be transposed up, down or both

simultaneously in Dual mode. The pitch shift amount can be set to a fixed interval or

footswitch features two different modes of operation: Latch and Momentary.

Momentary allows rapid toggling between effect and bypass for quick blasts of pitch

bending. The BLEND knob is a wet/dry control allowing you to create the perfect mix

of your dry and transposed signals.

GETTING STARTED

Connect the output plug of the supplied power adaptor to the 9V power jack. Plug

toggle switch to UP arrow and press the LATCH button so it is down. Turn BLEND

fully clockwise and set SHIFT to 1, as in 1 octave up. Press the footswitch until the

LED lights up. You will hear all your notes shifted up 1 octave. Connect an optional

expression pedal to continuously vary the pitch from unity up to 1 octave.

Press the LATCH button so it is up. The footswitch now has a momentary action:

when pressed the effect activates and pitch is shifted; when released, the effect is

bypassed. Connect an expression pedal to control glissando rate of the momentary

footswitch. If the EXP jack is vacant, pitch will change at the default glissando rate of

60ms (this is user adjustable).

BLEND KNOB

The BLEND knob mixes between the untreated, analog dry signal and the effected

signal. At BLEND’s full clockwise position, the output is 100% wet.

SHIFT KNOB

The SHIFT knob selects the maximum interval of chromatic transposition. The chart

below shows how the pitch will be shifted relative to the original pitch.

MODE TOGGLE SWITCH

The MODE toggle switch selects whether the pitch is shifted up, down or both

simultaneously relative to the root. Dual mode outputs two pitch-shifted signals. One

of the shifted signals follows the SHIFT knob as if in UP mode. The other shifted

signal creates a musically useful harmony according to the SHIFT knob setting.

DUAL mode SHIFT knob Settings:

LATCH BUTTON

The LATCH button selects Latch or Momentary mode. This affects how the footswitch

and EXP jack input behave. When the LATCH button is down, Latch mode is enabled.

The footswitch toggles between effect and bypass each time you press and release

the footswitch; the EXP input continuously varies pitch. When the LATCH button is in

footswitch is held down, otherwise the Pitch Fork is bypassed; the EXP input varies

the glissando rate of the momentary footswitch.

BYPASS FOOTSWITCH & STATUS LED

The footswitch toggles between effect on and buffered bypass. In Latch mode, each

press and release of the footswitch toggles between effect and bypass modes. In

Momentary mode, when the footswitch is held down, the effect is on, when the

footswitch is released, the Pitch Fork enters bypass. The status LED lights when in

Effect mode.

EXP JACK

EXPression input jack accepts a TRS expression pedal connector or a Tip-Sleeve 0-5V

with linear rather than audio taper. It must have the wiper connected to TIP and toe-

down connected to RING. Pedals made by some manufacturers do not conform to

suggested Expression Pedals: EHX Expression Pedal, M-Audio

EX-P, Moog

EP-2 &

EP-3, Roland

EV-5 or Boss

FV-500L.

ranging from unity, or no pitch shift, in the heel position to the interval set

by the SHIFT knob for the toe position. Pitch varies continuously from heel

to toe in all settings.

the Pitch Fork’s footswitch. When the bypass footswitch is pressed, the Pitch

Fork jumps from bypass to the pitch shift interval set by the SHIFT knob.

The amount of time it takes to reach the SHIFT knob’s interval setting is the

glissando rate. When the footswitch is released, pitch will return to unity by

the same rate. When your expression pedal is heel-down the rate is 4ms, in