Monday, 12 September 2016

Advanced Feedback Suppression (AFS) wizard

The feedback suppression wizard further tweaks the equalization to prevent the howling noise that happens when sound from the speakers is picked up a microphone and then re-amplified.
The wizard walks you through several steps:
  • After all your microphones have been set up and activated on stage, you start by turning the mixer's master volume down.
  • Then the AFS Wizard will ask you how many of the 12 available notch filters you want to be fixed and how many you want to be live. The fixed filters stay put after being set, the live filters will change and move to a new frequency if needed, which comes in handy if mics get moved during a show.
  • Next you choose how narrow you want the notch filters to be. You can choose a wide 1/5 of an octave band, for a speech-only application, or narrow it all the way down to an incredible 1/80 of an octave for precise feedback control that won't adversely affect the music.
  • Then you turn your mixer's master volume beyond normal to try and induce feedback. The AFS will instantly set the filters to prevent any ringing or howling, and you're set to return to normal levels and go for the show.

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