Octaver
Main article: Octave effect
An octaver mixes the input signal with a synthesised signal whose musical pitch is an octave lower or higher than the original. Effects that synthesize intervals besides octaves are referred to as harmonizers or pitch shifters, shown below. Octave up pedals are often used by lead Guitarists to add additional edge and clarity to their solo sound. Octave down pedals are used by Guitarists in bands without a bassist who want to add a lower-end sound, or by bassists who want an extended low range without having to buy a 5-string or 6-string bass.

Octave up pedals include:

Ampeg Scrambler
Electro Harmonix POG (Polyphonic Octave Generator)
Electro Harmonix HOG (Harmonic Octave Generator)
Octave down pedals include:

Boss OC-3 Super Octave
Electro-Harmonix Octave Multiplexer
MXR M-103 Blue Box

Pitch Shifter
Main article: Pitch shifting
A pitch shifter is a device that alters the pitch of the instruments. They are generally used with an expression pedal to give a smooth bend-like effect. Pitch shifters can also be used to electronically “detune” the instrument. Some examples are:

Digitech Whammy
Boss PS-5 Super Shifter
Electro Harmonix Harmonic Octave Generator

Tags: guitar accessories, Guitar Amplifiers, Guitar Effects Pedals, Guitar wireless systems

This entry was posted on Tuesday, August 19th, 2008 at 1:58 pm and is filed under Guitar effects. You can follow any responses to this entry through the RSS 2.0 feed.