Always consult the Owners Manuals first

Formant block

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Available on which Fractal Audio products

  • Axe-Fx III: 2 blocks
  • Axe-Fx II: 1 block
  • FX8: 1 block
  • AX8: 1 block

X/Y and channels

  • Axe-Fx III: 4 channels
  • Axe-Fx II: no
  • FX8: no
  • AX8: no

What does Formant do

The Formant filter simulates human vowel sounds:


More information in the Owner's Manual.

Parameters table

Parameter Axe-Fx III Axe-Fx II AX8, FX8
Start Vowel yes
Middle Vowel yes
End Vowel yes
Resonance yes
Control yes


Simulating a talkbox

The Formant effect lets you simulate a talkbox and, if you really really must, play Livin' on a Prayer. Attach a controller to the Control parameter in the Formant block, either an internal controller such as a LFO, or a pedal.

Forum discussions:

A real talkbox doesn't use a speaker, so experiment with leaving out a Cab block.

Want tips for integrating your real talkbox to your Axe-Fx rig? Search the forum for "banshee".


Emphasizing frequencies

The Formant can be used to emphasize frequencies, for example when creating a "Seek Wah". Put the Formant after the Wah block.

Preventing clipping

Because of the resonant frequencies of the Formant filter, it's easy to make the digital signal clip. Make sure to keep ample headroom in the preset level.