Sound | How do we hear?
How do we hear?
Sound waves travel through air at about 1,088 feet (332 meters) per second. When the sound waves or vibrations reach your ears, they push on your eardrums and cause them to vibrate. Each eardrum pushes against a series of three tiny bones in your middle ear. These tiny bones push against another membrane, which causes waves in a fluid inside your inner ear. Here, special cells pick up the differences in pressure from the waves and transform them into electrical signals that travel along nerves to your brain. When these signals reach the brain, you hear the sound and usually recognize its source.
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