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The EHX Pitch Fork transposes an instrument’s pitch over a +/-  three octave range and features three modes which allow the pitch to be  transposed up, down or both, simultaneously. The pitch shift amount can  be set to a fixed interval or continuously varied by an expression pedal  or control voltage.

The controls are straightforward and intuitive. An 11-position Shift  switch selects the maximum transposition interval ranging from D  (Detune), a shift of 17 cents, through Minor 2nd, Major 2nd, Major 3rd,  Perfect 4th, Perfect 5th, Major 6th, Minor 7th, 1 Octave, 2 Octaves and 3  Octaves. A three position toggle switch controls whether the pitch is  transposed up, down or both. In Dual mode, two pitch-shifted signals are  output. One follows the shift knob as if in the Up position while the  other creates a harmony. Dual Mode settings include M3 up + P5 up, P5 up  + 1 Oct down, 1 Oct up + 1 Oct down and many others. A Blend knob  controls the mix of the dry signal and the effected signal, and an EXP  jack enables the player to control pitch and glissando with an  expression pedal.

The Latch button selects Latch or Momentary mode which affects how  the footswitch and EXP input behave. In Latch mode, the footswitch  toggles between effect on and buffered bypass each time it’s pressed and  the EXP input continuously varies pitch. In Momentary mode the effect  is only on while the footswitch is depressed and when it is released the  Pitch Fork goes into bypass.

In Latch mode the EXP input controls pitch shift amount, ranging from  unity to the interval set by the Shift knob, and pitch varies  continuously throughout the expression pedal’s range. In Momentary mode  the EXP input controls glissando rate for the Pitch Fork’s footswitch.  When the bypass footswitch is pressed, the Pitch Fork jumps from bypass  to the interval set by the Shift knob. The amount of time it takes to  reach that new note is the glissando rate. When the footswitch is  released the pitch will return to unity at the same rate. That glissando  time can vary between 4 milliseconds to two seconds depending on the  heel/toe position of the expression pedal. The default glissando rate is  60 milliseconds when nothing is plugged into the EXP input.

The Pitch Fork comes equipped with an EHX 9.6DC-200mA power supply and also runs on a 9Volt battery.

• Transposes over a +/- three octave range
• Three shift modes: up, down or dual
• 11-position Shift knob selects the transposition interval
• EXP input lets you control pitch shift or glissando via optional expression pedal
• Latch and Momentary modes affect how the footswitch and EXP input behave
• Power adapter included