Understanding and Preventing Comb Filters | Live Sound Basics

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We often blame comb filters for many of our audio woes, but do you understand what’s going on under the hood?

What most engineers describe as a hollow, “phasey” sound is the telltale sign of comb filtering. How can we use discerning ears to find it and the right tools to prevent it?

We’ll cover:

- Why you can’t fix comb filtering with EQ
- What’s the predictable patterns comb filters have?
- How to run your own experiment and analyze comb filters yourself

00:00 - Intro
01:08 - Physics of Sound Basics
04:56 - What is a Comb Filter?
13:10 - What does a Comb Filter Sound Like?
14:08 - Creating and Analyzing Comb Filters
17:38 - How can we prevent Comb Filters?