An auditory illusion is a weird and tricky sound that can make you think you're hearing different sounds or things when you're really not. Imagine if someone played a sound that made you think you heard a dog barking, but there was no dog around. This is an example of an auditory illusion.
Sometimes, our brain can play tricks on us by making us believe that we hear something that is not really there. It can happen when we're listening to music, watching a movie or even when we're outside.
For instance, have you ever heard of the Shepard tone or the barber pole illusion? They are both famous auditory illusions that can make you feel like you're hearing never-ending sounds or that the sounds are always going up or down.
Simply put, an auditory illusion is a type of sneaky sound that can trick your brain into believing something that isn't true or something that isn't actually there.