Cutoff frequency

Okay kiddo, we're going to talk about something called cutoff frequency. Whenever we talk about sounds or signals, they are made up of different frequencies, which can be high or low. Cutoff frequency is a special frequency that separates the high and low frequencies.

Think of it like a line between two groups of friends. One group is made up of people who like high-pitched sounds, such as birds chirping or alarms ringing. The other group likes low-pitched sounds, like a car engine or a lion roaring.

The cutoff frequency is the line that separates the two groups. It's like a curtain that only allows sounds of a certain pitch to pass through. Anything higher than the cutoff frequency will be blocked (like the high-pitched sounds), while anything lower will be allowed through (like the low-pitched sounds).

This is really important in things like audio equipment, where we might want to filter out certain frequencies to make things sound better. For example, we might use the cutoff frequency to remove any background noise from a recording, which can make the final product sound much clearer.

So there you have it, cutoff frequency is just a special line or curtain that separates different pitches in sounds or signals.