Fractal Axe-Fx - Vocoder (Ultra Only)

The Effects
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MID - Sets the mid vowel sound.
END - Sets the end vowel sound.
RES - Sets the resonance of the filters. Higher resonance can yield a more dramatic effect.
CTRL - Controls the morphing between vowel sounds. Normally you would connect this to a
controller (i.e.
EXTERN1).
Vocoder (Ultra Only)
The Axe-Fx Ultra has a digital recreation of the classic analog Vocoder. The Vocoder, created by
Homer Dudley, was originally designed as means of compressing human speech for transmission
over narrow-band carrier channels. Impressive amounts of compression can be achieved while still
rendering speech intelligible. Although it never really gained acceptance for that application, it later
found usefulness as a means of encrypting speech for wartime communications. In the 1970’s
Robert Moog and Wendy Carlos pioneered the use of the Vocoder for musical applications.
The Axe-Fx Vocoder pays faithful homage to those early analog vocoders. Using a true constant-
Q approach the Axe-Fx Vocoder can be used to make your guitar “talk” or make your voice sound
like a robot or other strange and interesting effects.
When using the Vocoder with your guitar or other instrument as the carrier (synthesis bank), resist
the urge to sing along. Speaking in a monotone voice yields the best results.