ELI5: Explain Like I'm 5

Lattice filter

A lattice filter is a special kind of filter that helps to make sound better.

Imagine you went to a concert and the band is playing really loudly. But you want to hear the singer's voice better. So, you use your hands to make a funnel shape around your ear to focus the sound waves from the singer's voice directly into your ear. This is kind of like what a lattice filter does, it funnels the sound waves so they can be better heard.

A lattice filter works by breaking down the sound into different frequencies or pitches. It then makes adjustments to each of those frequencies individually to make them sound better. These adjustments are done in a special way that uses a series of little triangles called "lattice sections". Each section helps to clean up and adjust the sound, making it clearer and more pleasant to hear.

So, a lattice filter is like a magical funnel that helps to make sound cleaner and better. It does this by breaking down sound into little triangles and making individual adjustments to each frequency.