How a Hearing Aid Works.
Words would probably not explain just how important a hearing aid is to a person who has lost their ability to hear. Thinking about it the technology of the hearing aid is one of the most fortunate thing to happen to humanity because hearing loss is irreversible. Hearing aids are the only way for victims of hearing loss to hear the beautiful sounds of life has to offer. Many have heard about hearing aids and some even use them but not all understand how they work to deliver sound. But before that you have to look at what brings About their need which is hearing loss.
Hearing lose comes about with age as you would observe with many senior citizens. Upon approaching the age of seventy five there is a fifty percent chance that your hearing ability will deteriorate. The other common way that people lose their hearing ability is through exposure to very loud noises especially on a regular basis. Since this happens to be an environmental cause , people of young age could lose their hearing ability this way. People have suffered permanent hearing loss after exposure to loud explosions and crashes.
Working in an environment with a lot of noise requires you to have some protective gear to shield you from the noise. Recurring sounds that area over seventy five decibels which is the safe volume limit will destroy your hearing ability as well. Losing your hearing will take a shorter time if you are exposed to 85 decibels and over. A human ear is made up of many parts that work in harmony to enable a person to hear through conversion of the sound waves into messages that can be interpreted by the human brain. The sound waves are first turned into electrical signals which can be received by the auditory nerve of the ear. Sound enters through the air canal to hit the ear drum which vibrates to send signals to the inner ear bone, the bones translates vibrations into ripples in a fluid of the cochlea. The ripples in the cochlea fluid will trigger the hair cells to trigger chemicals generating an electrical signal which the auditory nerve sends to the brain in a form that the brain understand.
When you break it down any hearing aid is made up of a battery, microchip, receiver, amplifier and receiver. The microphones receive sounds from the outside word and translate them into signals of a digital kind which will be then processed by a microchip. Microchips can be customized so as to fit the user better, not that all hearing loss is not the same. The amplifier makes the signals stronger but the volumes are customizable to fit the needs of the user. The receiver then takes the digital signals and turns them into vibrations that the ears can understand. Hearing aids come in different types in regard to function and needs of the user.