Sleeping alone in the house at midnight. Why are there children screaming?

1, environmental noise, there will be noise when recording, and then it will sound like a child's voice.

2, cats, cats sometimes sound like children's voices when recording.

There are children among the surrounding residents. When recording, you will record the child's speech or other sounds, so there will be a child's voice when listening.

4, my own illusion, when listening to the recording, I misunderstood a child's voice.