Today's Lesson

EQ can be a powerful tool when it comes to eliminating feedback. Here are a few quick eq tips that can help cut down on feedback when you need them.

Start by applying a low cut filter on all of your microphones. This alone will stabilize your mix and clean up unwanted mud. From there if needed you can use the sweep-able mid EQ filters to make modest adjustments to some channels that may be more problematic. Just be careful as little adjustments can go a long way and will affect the overall tone of the audio source being adjusted.

Now use your output EQ to make broad changes and eliminate problematic frequencies
resonating from the full mix. Using a parametric EQ, you can perform a frequency sweep similar to what we did in our inputs. Keep the Q narrow as to focus on the offending frequencies and not affect the overall tonal qualities of the mix on our outputs. We can attenuate more liberally to really cut out those offending frequencies and stabilize the output. 

A graphic EQ can be used for the same purpose, or you can also perform a process called
binging out the room.

For more lessons and videos, see our QSC YouTube page.