The science Behind Hearing Aids.
A hearing aid is a very important gadget to people who cannot hear naturally. 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. Before you can shed any light on hearing aids you need to look at hearing loss first.
The leading cause of hearing loss old age. In fact as we go past the age of seventy five there is high likelihood that the hearing ability will have diminished in a way. 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.
It is mandatory for people working in industries to be provided with protective gear that shields their ears from noise related damage. Recurrent sounds especially those over 75 decibels, the safe volume limit, will damage your hearing gradually. If you happen to exceed eighty five decibels and be exposed for long periods then losing your hearing is even faster. 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. The hearing process begins with sound entering the hearing canal where spend hits the eardrum causing vibration , the inner ear bone picks the vibrations and turns them into ripples in the cochlea fluid. The ripples in the cochlear fluid stimulate the hair cells of the inner ear that triggers chemicals generating an electrical signal that is then picked by the auditory nerve and transmitted to the brain in sounds that we 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. The microchip can be customized to fit the needs of the user because not all hearing loss is the same. The amplifier then takes the digital signals and makes them louder and stronger, the volume at which the sounds can be received can be altered to the comfort of the user. The role of the receiver is to turn the digital signals into vibrations the ear can understand. Depending on the need and function, a patient can access different kinds of hearing aids.