How are sound wave detected?

Answer 1

The way that sound waves are detected in your ear or in a microphone are fundamentally the same. Your ear and a microphone both have a lightweight membrane that is sensitive to sudden changes in pressure. In the ear this is called an Ear Drum.

By sensitive, I mean that high pressure pushes it and low pressure pulls it. It physically moves like the skin of a drum.

This movement can be detected, in a microphone it is detected by attaching a magnet to the vibrating membrane, and having a loop of wire near the magnet, but not attached to it. When the magnet moves relative to the wire a voltage is induced in the wire. This is called Faraday's Law. In your ear the process of measuring is more complicated but is essentially based on measuring the vibrations of the eardrum.

Answer 2

Sound waves are detected by our ears' specialized structures, including the ear canal, eardrum, and inner ear. These structures vibrate in response to sound waves, which are then converted into electrical signals that are sent to the brain for interpretation. Additionally, devices like microphones and sonar systems can also detect sound waves by converting them into electrical signals for analysis.

Answer 3

The CRO has a device called a cathode ray oscilloscope which converts the sound waves into electrical impulses which are displayed on a screen. I hope that answers your question :-P