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. The value of a hearing aid is just incomparable 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. To begin understanding hearing aids you have to begin with understanding hearing loss.
The leading cause of hearing loss old age. Upon approaching the age of seventy five there is a fifty percent chance that your hearing ability will deteriorate. The exposure to very loud noises is another way through which people lose their hearing ability. Losing your hearing ability this way affects even people of young age. Explosions and crashes have the ability to cause permanent hearing loss.
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. As sounds exceed 85 decibels its takes an even shorter time to lose your hearing. 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. It all begins with the sound waves being converted into electrical signals which can be received by the auditory nerve. Sound waves first enters the ear canal and cause the ear drum to vibrate, the inner ear bone turns the vibrations into ripples in the cochlea fluid. 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.
Hearing aids are made of five parts ,a microphone, battery , receiver , microchip and amplifier. 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 work of the amplifier is to make the sounds louder and stronger, the volume is customizable to make the sounds more distinct and comfortable for 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.