On the rise of AI (Artificial Intelligence), I have a different idea & use case. This is a kind of GPS. With the voice or sound, find the location. Following a bird’s voice, finding the exact location, when you are surrounded by a lot of trees (even we can automate a camera to record the bird with the help of Voice GPS; even the bird moves here and there. We can also do this by tracking the motion). Find a person by his / her voice, in a crowded stadium. Find a baby by his / her voice, in a crowded market, beach, play area or theme park. Find a person by his / her voice, in a collapsed building or earthquake disaster. In a huge auditorium or town hall, find a person who is making a question or comment. Similarly we can find who is sleeping by his / her snore or who is disturbing in the crowd.