Imagine you have a microphone and a speaker that can make really loud, high-pitched noises. When the sound hits something, like a wall, it bounces back. A computer listens to how long it takes for the sound to come back, and from that, it can figure out what’s behind the wall. It's like sending a message through the wall and reading the reply.
Examples
- You send out a loud noise into a room, then listen for echoes coming back from the other side of a wall.
- Imagine using sound waves as a flashlight, you can see where they bounce and figure out what's in the dark.
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See also
- How does active noise cancellation technology work?
- How do noise-cancelling headphones work to block sound?
- How does noise-canceling headphone technology actually work?
- What are transducer elements?
- What are acoustic systems?