Always consult the Owners Manuals first.
Note: the wiki is currently being updated with information about the FM3.

Formant block

From Fractal Audio Wiki
Jump to: navigation, search

Available on which products

  • Axe-Fx III: 2 blocks
  • FM3: 2 blocks
  • Axe-Fx II: 1 block
  • FX8: 1 block
  • AX8: 1 block

Channels or X/Y switching

  • Axe-Fx III and FM3: 4 channels
  • Axe-Fx II: no
  • FX8: no
  • AX8: no

What is the Formant block

The Formant filter simulates human vowel sounds.


More information in Wikipedia and the Owner's Manuals.

Position of the Formant block on the grid

For best results, put the block between the Amp and Cab blocks.


Parameter Axe-Fx III / FM3 Axe-Fx II AX8 / FX8
Start Vowel yes
Middle Vowel yes
End Vowel yes
Resonance yes
Control yes

Tips and tricks

Simulate 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 an LFO, or a pedal.

Forum discussions:

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

Want tips for integrating your real talkbox in your Axe-Fx or AX8 rig? Search the forum for "banshee" or "talkbox".

Talk box in Wikipedia

Emphasize frequencies

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

Make other sounds more vocal

Add the Formant to make other sounds more like human vocals.

Prevent clipping

Because of the resonant frequencies of the Formant filter, it's easy to make the digital signal clip. Keep sufficient headroom.