Voice activity detection

You know how sometimes when you're watching a video or talking on the phone, there might be some background noise? Like maybe some people talking in the distance or some cars driving by outside. Voice activity detection is like a little helper that can tell if someone is actually talking or if it's just noise.

It works kind of like when you're playing hide-and-seek and you can tell if someone is hiding because you can hear them breathing. Voice activity detection listens really carefully to the sounds coming through the microphone or phone and tries to figure out if there's any breathing or talking going on.

If it decides that there is a person talking, then it will let other programs or devices know so they can take action. For example, if you're using a microphone to record a video and voice activity detection detects someone talking, it will make sure that the recording only picks up the talking and not the background noise.

Overall, voice activity detection is like a smart little helper that can tell the difference between talking and noise.