Chirp spectrum

Okay, kiddo, let's imagine you and your friend are playing hide-and-seek. Your friend is hiding and you want to call out to her to see where she is, but you don't want to give away your own hiding spot! So instead of shouting her name, you decide to make a special kind of noise that changes over time, like a bird chirping. This type of sound is called a "chirp" because it goes up and down quickly.

Now imagine that we could draw a picture of the sounds we make. Each time you make a chirp noise, it creates a little "bump" on the picture. If we put all the bumps together in a row, it would look like a squiggly line with lots of ups and downs.

Now let's imagine that your friend is really far away, and the squiggly line we drew is too small for her to see. We need to make it bigger so she can see it better. To do this, we can stretch the line out over time, making it longer and longer. Here's the cool part: when we do this, the squiggly line will change shape and become bigger, with longer bumps that go up and down more slowly. This is called a "chirp spectrum" because it shows all the different types of chirps we made, and how they changed over time.

So, to summarize: a chirp spectrum shows all the different chirping sounds we make over time, and how they change shape and get bigger as we stretch them out. It's kind of like drawing a really long picture of all the little chirpy bumps we made, so that we can see them more clearly. Pretty neat, huh?