Our ear has 3 main components Outer, Middle, and Inner ear. Sound waves are collected by the Outer ear, which consists of the visible parts of the ear (the pinna) and the ear canal. The sound waves travel down the ear canal and reach the eardrum.
When sound waves hit the eardrum, it vibrates. These vibrations are then passed on to the three tiny bones in the Middle ear: the malleus, incus, and stapes. The three bones in the middle ear amplify the sound vibrations and send them to the Inner ear. The Inner ear consists of the Cochlea, which is a fluid-filled, snail-shaped organ. As the vibration enters the cochlea, they create waves in the fluid, which stimulate tiny hair cells inside the cochlea. The hair cells convert the sound waves into electrical signals, which are then sent to the brain via the auditory nerve. The brain process these signals and interprets them as sound. If any part of this process is disrupted, it can result in hearing loss. That’s where hearing aids come in. Hearing aids are designed to amplify sound and make it easier to hear for those with hearing loss. By understanding how we hear, you can better understand how hearing aids work and how they can help improve your hearing.