Generally, an "octaving" circuit is one that changes
the input frequency by one or more octaves, up or
down.

A "Wah" effect is either a bandpass or very resonant
low-pass filter with input pedal that sweeps the
frequency.

Chorus, Flanging, and Phaser are similar effects, I
think, that only slightly change (and vary) the
frequency and combine with the original signal. Inputs
generally are shape, frequency, and depth.

For large-scale pitch changing with inputs indicating
pitch, you may want to look for a "whammy" guitar
effect.

Good Luck!

--- "Gary L. Batchellor" <gbatchellor@DJGRP.COM>
wrote:
>  Following the voice changer thread and looked at
> the links posted and there is a circuit that says it
> is an "octaving" circuit. Anyone have any kind of a
> definition for what that is? It sounds like it
> raises sounds by one octave but I find sometimes I
> get way off track that way.
> Thanks
>
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